The following is a list of Historic Mechanical Engineering Landmarks as designated by the American Society of Mechanical Engineers

American Society of Mechanical Engineers

The American Society of Mechanical Engineers is a professional body, specifically an engineering society, focused on mechanical engineering....

 since it began the program in 1971. The designation is granted to existing artifacts or systems representing a significant mechanical engineering technology. Mechanical Engineering Heritage Sites, or particular locales at which some event or development occurred or which some machine, building, or complex of significance occupied. Mechanical Engineering Heritage Collections, which refers to a museum or collection that includes related objects of special significance to, but not necessarily a major evolutionary step in, the historical development of mechanical engineering.

As of 2011, there are 248 landmarks included on the list.

Ref#	Year added	Name	Image	Built / Established	Location	Region/state	Country	Notes
1	1973	Ferries & Cliffhouse Cable Railway Power House		1887	San Francisco	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the most complicated cable-car systems to run from a single station.
2	1973	Leavitt-Riedler Pumping Engine Leavitt-Riedler Pumping Engine The Leavitt-Riedler Pumping Engine is a historic steam engine located in the Chestnut Hill Pumping Station, 2436 Beacon Street, Boston, Massachusetts. It has been declared a national landmark by the American Society of Mechanical Engineers....		1894	Boston Boston Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. The city proper had...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Unusual triple-expansion, three-crank "rocker" engine, driving high-capacity, high-speed pumps.
3	1974	A.B. Wood Screw Pump A. Baldwin Wood Albert Baldwin Wood was an inventor and engineer from New Orleans, Louisiana. He graduated from Tulane University with a Bachelor of Science in Mechanical Engineering in 1899....		1914	New Orleans	Louisiana Louisiana Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The most advanced low-lift drainage pump in use in the early 20th century, later used worldwide.
4	1975	Portsmouth-Kittery Naval Shipbuilding Activity Portsmouth Naval Shipyard The Portsmouth Naval Shipyard , often called the Portsmouth Navy Yard, is a United States Navy shipyard located in Kittery on the southern boundary of Maine near the city of Portsmouth, New Hampshire. It is used for remodeling and repairing the Navy's ships...		1774	Kittery Kittery, Maine Kittery is a town in York County, Maine, United States. The population was 9,543 at the 2000 census. Home to the Portsmouth Naval Shipyard on Seavey's Island, Kittery includes Badger's Island, the seaside district of Kittery Point, and part of the Isles of Shoals...	Maine Maine Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US naval shipyard, achieving notable firsts in technology and producing many well-known US naval vessels.
5	1975	Boyden Hydraulic Turbines Uriah A. Boyden Uriah Atherton Boyden was a Boston inventor and mechanical engineer. He was the brother of Seth Boyden....		1871	Cohoes Cohoes, New York Cohoes is an incorporated city located at the northeast corner of Albany County in the US state of New York. It is called the "Spindle City" because of the importance of textile production to its growth. As of the 2010 census, the city population was 16,168...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Two of the oldest surviving water turbines, probably the largest and nearly the most powerful ever built in the United States for mechanical drive. Located at Harmony Mills Harmony Mills Harmony Mills, in Cohoes, New York, United States, is an industrial district that is bordered by the Mohawk River and the old Erie Canal. It was listed as Harmony Mills Historic District on the National Register of Historic Places in 1978, and it was further declared a National Historic Landmark... .
6	1975	Curtis 5000-kW Vertical Turbine		1903	Schenectady Schenectady, New York Schenectady is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2010 census, the city had a population of 66,135...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The most powerful steam turbine-generator in the world at the time of its construction.
7	1975	Saugus Ironworks		1647	Saugus Saugus, Massachusetts Saugus is a town in Essex County, Massachusetts, United States, in the Greater Boston area. The population was 26,628 at the 2010 census.-History:Saugus was first settled in 1629. Saugus is an Indian name believed to mean "great" or "extended"...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Replica museum of the first successful commercial ironworks in North America.
8	1975	Pioneer Oil Refinery California Star Oil Works		1876	Newhall Newhall, California Newhall is the southernmost and oldest district of Santa Clarita, California. Prior to the 1987 consolidation of Valencia, Canyon Country, Saugus, Newhall, and other geographically proximate settlements into the conglomerate city of Santa Clarita, it was an independent but unincorporated town...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A replica of the first successful commercial oil refinery in the US West.
9	1975	Chesapeake & Delaware Canal Scoop Wheel & Engines Old Lock Pump House, Chesapeake and Delaware Canal The Old Lock Pump House on the Chesapeake and Delaware Canal was one of the first National Historic Landmarks to recognize an engineering achievement rather than an important building or a place associated with an historic event...		1852	Chesapeake City Chesapeake City, Maryland Chesapeake City is a town in Cecil County, Maryland, United States. The population was 787 at the 2000 census.The town was originally named by Bohemian colonist Augustine Herman the Village of Bohemia , but the name was changed in 1839 when the Chesapeake and Delaware Canal was built...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	19th-century steam pumps at the (former) summit of the ship canal.
10	1975	USS Texas' Reciprocating Steam Engines USS Texas (BB-35) USS Texas , the second ship of the United States Navy named in honor of the U.S. state of Texas, is a . The ship was launched on 18 May 1912 and commissioned on 12 March 1914....		1914	La Porte La Porte, Texas La Porte is a city in Harris County, Texas within the Bay Area of the Houston–Sugar Land–Baytown metropolitan area. As of the 2000 U.S. Census, the city population was 31,880...	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Last reciprocating marine engines installed in a naval ship.
11		Paige Compositor Paige Compositor Paige Compositor was an invention developed by James W. Paige between 1872–1888. Designed to replace the human typesetter of a printing press with a mechanical arm, the machine was not nearly as precise as it should have been and never turned a profit because of its complexity and continual need...		1877	Hartford Hartford, Connecticut Hartford is the capital of the U.S. state of Connecticut. The seat of Hartford County until Connecticut disbanded county government in 1960, it is the second most populous city on New England's largest river, the Connecticut River. As of the 2010 Census, Hartford's population was 124,775, making...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US typography machine to set, justify, and distribute foundry type from a common case using one operator.
12	1976	Reynolds-Corliss Pumping Engine		1917	Jacksonville Jacksonville, Florida Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early 20th-century water pump driven by a Corliss steam engine.
13	1976	Childs-Irving Hydroelectric Project Childs-Irving Hydroelectric Facilities -History:The water rights of Fossil Creek, located between Pine/Strawberry and Camp Verde, Arizona, were purchased in 1900 by rancher Lew Turner. His goal was to generate hydroelectric power for sale to mining communities in the Bradshaw Mountains and Black Hills in Yavapai County, such as Jerome,...		1909	Phoenix Phoenix, Arizona Phoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populated city in the United States. Phoenix is home to 1,445,632 people according to the official 2010 U.S. Census Bureau data...	Arizona Arizona Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early 20th-century hydroelectric plant incorporating innovative technologies.
14	1976	Hanford B Reactor		1944	Richland Richland, Washington Richland is a city in Benton County in the southeastern part of the U.S. state of Washington, at the confluence of the Yakima and the Columbia Rivers. As of the 2010 census, the city population was 48,058. April 1, 2011 estimates from the Washington State Office of Financial Management put the...	Washington	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US plutonium production reactor placed in commercial operation.
15	1976	Magma Copper Mine Air Conditioning System		1937	Superior	Arizona Arizona Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First air-conditioned mine in North America.
16	1976	Manitou and Pike's Peak Railway Manitou and Pike's Peak Railway The Manitou and Pike's Peak Railway is an Abt rack system cog railway in Colorado, USA, climbing the well-known mountain Pikes Peak. The base station is in Manitou Springs, Colorado near Colorado Springs....		1891	Pikes Peak Pikes Peak Pikes Peak is a mountain in the Front Range of the Rocky Mountains, west of Colorado Springs, Colorado, in El Paso County in the United States of America....	Colorado Colorado Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Highest railway in the US and highest rack railway in the world.
17	1976	Edgar Station, Edison Electric Illuminating Co		1925	Weymouth Weymouth, Massachusetts The Town of Weymouth is a city in Norfolk County, Massachusetts, United States. As of the 2010 census, Weymouth had a total population of 53,743. Despite its city status, it is formally known as the Town of Weymouth...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Power-generation station with one of the world's only high-pressure topping turbines, which set new records in the late 1920s.
18	1976	Mount Washington Cog Railway		1869	Mount Washington Mount Washington (New Hampshire) Mount Washington is the highest peak in the Northeastern United States at , famous for dangerously erratic weather. For 76 years, a weather observatory on the summit held the record for the highest wind gust directly measured at the Earth's surface, , on the afternoon of April 12, 1934...	New Hampshire New Hampshire New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	World's first cog railway.
19		Folsom Power House #1 Folsom Powerhouse State Historic Park Folsom Powerhouse State Historic Park is a historical site located in Folsom near Sacramento, California, in the United States. Built in the late 19th century by the Natoma Water and Mining Company and prison labor from Folsom Prison, the hydroelelectric powerhouse first delivered power to...		1895	Folsom Folsom, California Folsom is a city in Sacramento County, California, United States. Folsom is most commonly known for its famous Folsom Prison. The population was 72,203 at the 2010 census....	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the first successful uses of hydroelectric power in the world, including the first successful long-distance transmission of power.
20	1977	Crawler Transporters of Launch Complex 39 Crawler-Transporter The crawler-transporters are a pair of tracked vehicles used to transport spacecraft from NASA's Vehicle Assembly Building along the Crawlerway to Launch Complex 39. They were originally used to transport the Saturn IB and Saturn V rockets during the Apollo, Skylab and Apollo–Soyuz programs....		1965	Cape Canaveral Cape Canaveral Cape Canaveral, from the Spanish Cabo Cañaveral, is a headland in Brevard County, Florida, United States, near the center of the state's Atlantic coast. Known as Cape Kennedy from 1963 to 1973, it lies east of Merritt Island, separated from it by the Banana River.It is part of a region known as the...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Two of the largest ground vehicles ever built, including automatic load-leveling systems.
21	1977	Fairmount Water Works Fairmount Water Works The Fairmount Water Works in Philadelphia, Pennsylvania was Philadelphia's second municipal waterworks. Designed in 1812 by Frederick Graff and built between 1812 and 1872, it operated until 1909, winning praise for its design and becoming a popular tourist attraction...		1815	Philadelphia	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First large-scale application of steam pumping, later water power, to public water supply.
22	1977	USS Olympia, Vertical Reciprocating Steam Engines USS Olympia (C-6) USS Olympia is a protected cruiser which saw service in the United States Navy from her commissioning in 1895 until 1922. This vessel became famous as the flagship of Commodore George Dewey at the Battle of Manila Bay during the Spanish-American War in 1898. The ship was decommissioned after...		1892	Philadelphia	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Two of the first vertical triple-expansion marine engines.
23	1977	Pit-Cast Jib Crane		1905	Birmingham Birmingham, Alabama Birmingham is the largest city in Alabama. The city is the county seat of Jefferson County. According to the 2010 United States Census, Birmingham had a population of 212,237. The Birmingham-Hoover Metropolitan Area, in estimate by the U.S...	Alabama Alabama Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Last US pit-cast jib crane to operate in the casting of iron pipe.
24	1977	State Line Generating Unit 1 State Line Generating Plant The State Line Generating Plant is a coal-fired electrical generating station located on the coast of Lake Michigan, bordering the state line separating Indiana from Illinois but within the corporate limits of Hammond, Indiana...		1929	Hammond Hammond, Indiana Hammond is a city in Lake County, Indiana, United States. It is part of the Chicago metropolitan area. The population was 80,830 at the 2010 census.-Geography:Hammond is located at ....	Indiana Indiana Indiana is a US state, admitted to the United States as the 19th on December 11, 1816. It is located in the Midwestern United States and Great Lakes Region. With 6,483,802 residents, the state is ranked 15th in population and 16th in population density. Indiana is ranked 38th in land area and is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	World's largest electric-power generator for nearly 25 years, achieving many design firsts.
25	1977	Pratt Institute Power Plant Pratt Institute Pratt Institute is a private art college in New York City located in Brooklyn, New York, with satellite campuses in Manhattan and Utica. Pratt is one of the leading undergraduate art schools in the United States and offers programs in Architecture, Graphic Design, History of Art and Design,...		1887	Brooklyn Brooklyn Brooklyn is the most populous of New York City's five boroughs, with nearly 2.6 million residents, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest steam-generating plant of its kind in the Northeast United States.
26	1977	Monongahela Incline Monongahela Incline The Monongahela Incline, built by John Endres in 1870, islocated near the Smithfield Street Bridge in Pittsburgh. It is the oldest continuously operating funicular in the USA. It is also one of two surviving inclines from the original 17 passenger-carrying inclines built in Pittsburgh starting...		1870	Pittsburgh	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US passenger incline.
27	1977	Duquesne Incline Duquesne Incline The Duquesne Incline is a inclined plane railroad, or funicular, located near Pittsburgh's South Side neighborhood and scaling Mt. Washington. Designed by Samuel Diescher, the incline was completed in 1877 and is long, in height, and is inclined at a 30 degree angle...		1877	Pittsburgh	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Second US passenger incline.
28	1977	Great Falls Raceway and Power System Great Falls (Passaic River) The Great Falls of the Passaic River is a prominent waterfall, high, on the Passaic River in the city of Paterson in Passaic County in northern New Jersey in the United States. The Congress authorized its establishment as a National Historical Park in 2009...		1792	Paterson Paterson, New Jersey Paterson is a city serving as the county seat of Passaic County, New Jersey, United States. As of the 2010 United States Census, its population was 146,199, rendering it New Jersey's third largest city and one of the largest cities in the New York City Metropolitan Area, despite a decrease of 3,023...	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First major US water power system and basis for integrating urban planning with industrial development.
29	1977	Vulcan Street Power Plant Vulcan Street Plant The Vulcan Street Plant is the world's first Edison hydroelectric central station. Built on the Fox River in Appleton, Wisconsin, the Vulcan Street Plant was put into operation on September 30, 1882...		1882	Appleton Appleton, Wisconsin Appleton is a city in Outagamie, Calumet, and Winnebago Counties in the U.S. state of Wisconsin. It is situated on the Fox River, 30 miles southwest of Green Bay and 100 miles north of Milwaukee. Appleton is the county seat of Outagamie County. The population was 78,086 at the 2010 census...	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First Edison hydroelectric central station. ASME was joined in this landmark's dedication by the IEEE and ASCE.
30		Wilkinson Mill David Wilkinson (machinist) David Wilkinson was a U.S. mechanical engineer who invented a lathe for cutting screw threads, which was an extremely important development in the development of the machine tool industry in the early 19th century....		1810	Pawtucket Pawtucket, Rhode Island Pawtucket is a city in Providence County, Rhode Island, United States. The population was 71,148 at the 2010 census. It is the fourth largest city in the state.-History:...	Rhode Island Rhode Island The state of Rhode Island and Providence Plantations, more commonly referred to as Rhode Island , is a state in the New England region of the United States. It is the smallest U.S. state by area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early 19th-century textile mill and machine shop.
31	1978	Interborough Rapid Trasit System (Original Line) Interborough Rapid Transit Company The Interborough Rapid Transit Company was the private operator of the original underground New York City Subway line that opened in 1904, as well as earlier elevated railways and additional rapid transit lines in New York City. The IRT was purchased by the City in June 1940...		1904	New York New York City New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first fully electrically signaled railroad in the United States and the first practical subway in New York City.
32	1978	Baltimore & Ohio Railroad Old Main Line Baltimore and Ohio Railroad The Baltimore and Ohio Railroad was one of the oldest railroads in the United States and the first common carrier railroad. It came into being mostly because the city of Baltimore wanted to compete with the newly constructed Erie Canal and another canal being proposed by Pennsylvania, which...		1828	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US railroad in public service.
33	1978	Ringwood Manor Iron Complex		1740	Ringwood Ringwood, New Jersey -Demographics:As of the census of 2000, there are 12,396 people, 4,108 households, and 3,446 families residing in the borough. The population density is 491.0 people per square mile . There are 4,221 housing units at an average density of 167.2 per square mile...	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Surviving 18th-century iron manufacturing center.
34	1978	Joshua Hendy Iron Works Joshua Hendy Iron Works The Joshua Hendy Iron Works was an American engineering company that existed from the 1850s to the late 1940s. It was at one time a world leader in mining technology and its equipment was used to build the Panama Canal, amongst other major projects...		1906	Sunnyvale Sunnyvale, California Sunnyvale is a city in Santa Clara County, California, United States. It is one of the major cities that make up the Silicon Valley located in the San Francisco Bay Area...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early 20th-century ironworks demonstrating the adaptability required for industrial survival.
35	1979	Hacienda La Esperanza Sugar Mill Steam Engine		1861	San Juan San Juan, Puerto Rico San Juan , officially Municipio de la Ciudad Capital San Juan Bautista , is the capital and most populous municipality in Puerto Rico, an unincorporated territory of the United States. As of the 2010 census, it had a population of 395,326 making it the 46th-largest city under the jurisdiction of...	Puerto Rico Puerto Rico Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Typical beam steam engine of the mid-19th century, directly connected to sugar crushing rolls.
36	1979	RL-10 Rocket Engine		1958	West Palm Beach West Palm Beach, Florida West Palm Beach, is a city located on the Atlantic coast in southeastern Florida and is the most populous city in and county seat of Palm Beach County, the third most populous county in Florida with a 2010 population of 1,320,134. The city is also the oldest incorporated municipality in South Florida...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First rocket engine to use high-energy liquid hydrogen as fuel.
37	1979	A. O. Smith Automatic Frame Plant A. O. Smith A. O. Smith Water Products Company, a division of A. O. Smith Corporation , headquartered in Ashland City, Tennessee, is a manufacturer and marketer of residential and commercial water heaters and boilers.-History:...		1920	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Prototype of the automated factory. (No longer exists).
38	1979	Morris Canal (Reaction) Turbine Morris Canal The Morris Canal was an anthracite-carrying canal that incorporated a series of water-driven inclined planes in its course across northern New Jersey in the United States. It was in use for about a century — from the late 1820s to the 1920s....		1850	Stewartsville Stewartsville, New Jersey Stewartsville is an unincorporated area within Greenwich Township in Warren County, New Jersey, United States. The area is served as United States Postal Service ZIP code 08886....	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early reaction, or Scotch, turbine, a type that later found widespread application.
39	1979	Experimental Breeder Reactor I Experimental Breeder Reactor I Experimental Breeder Reactor I is a decommissioned research reactor and U.S. National Historic Landmark located in the desert about southeast of Arco, Idaho. At 1:50 pm on December 20, 1951 it became the world's first electricity-generating nuclear power plant when it produced sufficient...		1951	Arco Arco, Idaho Arco is a city in Butte County, Idaho, United States. The population was 995 at the 2010 census. The city is the county seat of Butte County.Craters of the Moon National Monument is located along U.S. Route 20, southwest of the city. The Idaho National Laboratory is located east of Arco...	Idaho Idaho Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	World's first nuclear power plant to demonstrate the breeder concept.
40	1979	Drake Oil Well Drake Well Museum The Drake Well Museum is a museum that interprets the birth of the American oil industry in 1859 by "Colonel" Edwin Drake along the banks of Oil Creek in Cherrytree Township, Venango County, Pennsylvania in the United States. The museum collects and preserves related artifacts...		1859	Titusville Titusville, Pennsylvania Titusville is a city in Crawford County, Pennsylvania, United States. The population was 6,146 at the 2000 census. In 1859, oil was successfully drilled in Titusville, resulting in the birth of the modern oil industry.-History:...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First practical oil recovery system using salt-well drilling techniques and modern pipe-driving methods, marks beginning of US petroleum industry.
41	1980	Springfield Armory Springfield Armory The Springfield Armory, located in the City of Springfield, Massachusetts - from 1777 until its closing in 1968 - was the primary center for the manufacture of U.S. military firearms. After its controversial closing during the Vietnam War, the Springfield Armory was declared Western Massachusetts'...		1794	Springfield Springfield, Massachusetts Springfield is the most populous city in Western New England, and the seat of Hampden County, Massachusetts, United States. Springfield sits on the eastern bank of the Connecticut River near its confluence with three rivers; the western Westfield River, the eastern Chicopee River, and the eastern...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US armory noted for machinery for mass production of small arms, including the Blanchard lathe.
42	1980	East Wells (Onieda) Street Power Plant Oneida Street Station Oneida Street Station, also known as the East Wells Power Plant, was a power plant operated by The Milwaukee Electric Railway & Light Company. Constructed from 1898 to 1900, it was designed by architect Herman Esser in neoclassical revival style. The building is located in downtown Milwaukee,...		1918	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Pilot plant for US development of pulverized-coal firing in power-plant boilers.
43	1980	Watkins Woolen Mill Watkins Mill Watkins Mill, in Lawson, Missouri, is a preserved woolen mill dating to the mid-19th century. Designated a National Historic Landmark on November 13, 1966, the mill is protected as Missouri's Watkins Mill State Historic Site which preserve its machinery and business records as well as the building...		1868	Lawson Lawson, Missouri Lawson is a city in Clay and Ray counties in the U.S. state of Missouri. The population was 2,473 at the 2010 census.-Geography:Lawson is located at ....	Missouri Missouri Missouri is a US state located in the Midwestern United States, bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. With a 2010 population of 5,988,927, Missouri is the 18th most populous state in the nation and the fifth most populous in the Midwest. It...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The best preserved 19th-century woolen mill in North America.
44	1980	Fusion-welded Test Boiler Drum		1930	Chattanooga Chattanooga, Tennessee Chattanooga is the fourth-largest city in the US state of Tennessee , with a population of 169,887. It is the seat of Hamilton County...	Tennessee Tennessee Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	first fusion-welded boiler drum, tests on which led to widespread acceptance in industry.
45	1980	Georgetown Steam Plant Georgetown Steam Plant The Georgetown Steam Plant, now the Georgetown PowerPlant Museum, located in the Georgetown neighborhood of Seattle, Washington, constructed in 1906 for the Seattle Electric Company, provided power for Seattle, notably for streetcars.-History:...		1906	Seattle	Washington	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Steam plant with early Curtis turbines, marking the beginning of the end of the reciprocating steam engine as the central station prime mover.
46	1980	Commonwealth Building Heat Pump		1948	Portland Portland, Oregon Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...	Oregon Oregon Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First large commercial building in the United States to pioneer the use of heat pumps for heating and cooling.
47	1980	Shippingport Nuclear Power Station		1958	Shippingport Shippingport, Pennsylvania Shippingport is a borough in Beaver County, Pennsylvania, along the Ohio River. The population was 237 at the 2000 census.-Nuclear power plant:...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US commercial central electric-generating station to use nuclear energy.
48	1980	Edison 'Jumbo' Engine-driver Dynamo		1882	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of six dynamos from Edison's Pearl Street Station, the prototype for US central-station power generation.
49	1980	Marine-type Triple-expansion, Engine-driven Dynamo		1891	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Sole surviving engine-generator set marking the beginning of large-scale electric power generation in the United States.
50		Cooperative Fuel Research Engine		1928	Waukesha Waukesha, Wisconsin Waukesha is a city in and the county seat of Waukesha County, Wisconsin, in the Upper Midwest region of the United States. The population was 70,718 at the 2010 census, making it the largest community in the county and 7th largest in the state. The city is located adjacent to the Town of Waukesha...	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Pioneer variable-compression laboratory engine for testing fuels.
51	1980	Port Washington Power Plant		1935	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's most thermally efficient steam plant for many years.
52	1980	Saturn V Rocket Saturn V The Saturn V was an American human-rated expendable rocket used by NASA's Apollo and Skylab programs from 1967 until 1973. A multistage liquid-fueled launch vehicle, NASA launched 13 Saturn Vs from the Kennedy Space Center, Florida with no loss of crew or payload...  (Lyndon B. Johnson Space Center Lyndon B. Johnson Space Center The Lyndon B. Johnson Space Center is the National Aeronautics and Space Administration's center for human spaceflight training, research and flight control. The center consists of a complex of 100 buildings constructed on 1,620 acres in Houston, Texas, USA... )		1967	Houston	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Three sites (Texas, Florida and Alabama) were simultaneously designated (via satellite) in July 1980.
53	1980	Saturn V Rocket Saturn V The Saturn V was an American human-rated expendable rocket used by NASA's Apollo and Skylab programs from 1967 until 1973. A multistage liquid-fueled launch vehicle, NASA launched 13 Saturn Vs from the Kennedy Space Center, Florida with no loss of crew or payload...  (Kennedy Space Center Visitor Complex Kennedy Space Center Visitor Complex The Kennedy Space Center Visitor Complex is the visitor center at NASA's Kennedy Space Center in Florida. It features exhibits and displays, historic spacecraft and memorabilia, shows, two IMAX theaters, a range of bus tours of the spaceport, and the Shuttle Launch Experience, a simulated ride into... )		1967	Cape Canaveral Cape Canaveral Cape Canaveral, from the Spanish Cabo Cañaveral, is a headland in Brevard County, Florida, United States, near the center of the state's Atlantic coast. Known as Cape Kennedy from 1963 to 1973, it lies east of Merritt Island, separated from it by the Banana River.It is part of a region known as the...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Three sites (Texas, Florida and Alabama) were simultaneously designated (via satellite) in July 1980.
54	1980	Saturn V Rocket Saturn V The Saturn V was an American human-rated expendable rocket used by NASA's Apollo and Skylab programs from 1967 until 1973. A multistage liquid-fueled launch vehicle, NASA launched 13 Saturn Vs from the Kennedy Space Center, Florida with no loss of crew or payload...  (U.S. Space & Rocket Center)		1967	Huntsville Huntsville, Alabama Huntsville is a city located primarily in Madison County in the central part of the far northern region of the U.S. state of Alabama. Huntsville is the county seat of Madison County. The city extends west into neighboring Limestone County. Huntsville's population was 180,105 as of the 2010 Census....	Alabama Alabama Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Three sites (Texas, Florida and Alabama) were simultaneously designated (via satellite) in July 1980.
55	1980	Blood Heat Exchanger		1957	Amherst Amherst, New York Amherst is a town in Erie County, New York, United States. As of the 2010 census, the town had a total population of 122,366. This represents an increase of 5.0% from the 2000 census. The town is named for Jeffrey Amherst, a British Army officer of the colonial period...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first commercial human-blood heat exchanger for controlling hyperthermic temperatures during open-heart surgery.
56	1980	Rocky River Pumped-storage Hydroelectric Plant		1929	New Milford New Milford, Connecticut New Milford is a town in southern Litchfield County, Connecticut, United States north of Danbury, on the Housatonic River. It is the largest town in the state in terms of land area at nearly . The population was 28,671 according to the Census Bureau's 2006 estimates...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early example of the pumped-storage principle, at a power plant.
5	1980	Kaplan Turbine Kaplan turbine The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by the Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and...  at York Haven Dam York Haven Dam York Haven Dam is a low head, run-of-the river, dam and hydroelectric plant on the Susquehanna River, United States. The dam is south of Harrisburg, Pennsylvania, at the Conewago Falls, where the river drops 19 feet in 1/4 mile...		1929	York County York County, Pennsylvania York County is a county in the U.S. state of Pennsylvania. As of 2010, the population was 434,972. It is in the Susquehanna Valley, a large fertile agricultural region in South Central Pennsylvania....	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the first three Kaplan-type hydraulic turbines in the United States.
58	1980	Pioneer Zephyr Pioneer Zephyr The Pioneer Zephyr is a diesel-powered railroad train formed of railroad cars permanently articulated together with Jacobs bogies, built by the Budd Company in 1934 for the Chicago, Burlington and Quincy Railroad , commonly known as the Burlington...		1934	Chicago Chicago Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...	Illinois Illinois Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First US diesel-powered, stainless-steel streamlined train.
59	1981	Chestnut Street Pumping Engine Erie Water Works The Erie Water Works was incorporated in 1865 as the Erie Water and Gas Company to provide drinking water and fire hydrant water for the city of Erie, Pennsylvania. The Water Works, also known as the Erie City Water Authority, replaced the Erie Water Systems...		1913	Erie Erie, Pennsylvania Erie is a city located in northwestern Pennsylvania in the United States. Named for the lake and the Native American tribe that resided along its southern shore, Erie is the state's fourth-largest city , with a population of 102,000...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Typical US municipal steam water-pumping engine of the late 19th century and early 20th century.
60	1981	Holt Caterpillar Tractor Holt Manufacturing Company The Holt Manufacturing Company traces its roots to the 1883 establishment of Stockton Wheel Service in Stockton, California, United States. Benjamin Holt, who was later credited with patenting the first workable crawler tractor design, incorporated the Holt Manufacturing Company in 1892...		1918	Stockton Stockton, California Stockton, California, the seat of San Joaquin County, is the fourth-largest city in the Central Valley of the U.S. state of California. With a population of 291,707 at the 2010 census, Stockton ranks as this state's 13th largest city...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest track-type gasoline-powered tractor, influencing designs worldwide.
61	1981	Michigan-Lake Superior Power Hydroelectric Plant		1902	Sault Ste. Marie Sault Ste. Marie, Michigan Sault Ste. Marie is a city in and the county seat of Chippewa County in the U.S. state of Michigan. It is in the north-eastern end of Michigan's Upper Peninsula, on the Canadian border, separated from its twin city of Sault Ste. Marie, Ontario, by the St. Marys River...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An early, extremely large-scale, low-head hydropower plant using many small turbines.
62	1981	Southern Pacific #4294 Cab-in-Front Steam Locomotive Southern Pacific 4294 Southern Pacific 4294 was the last steam locomotive ordered new by Southern Pacific Railroad . It was built by Baldwin Locomotive Works in March 1944, and was used hauling SP's trains over the Sierra Nevada Mountains, often working on Donner Pass in California.- Construction and use :4294 was the...		1944	Sacramento Sacramento, California Sacramento is the capital city of the U.S. state of California and the county seat of Sacramento County. It is located at the confluence of the Sacramento River and the American River in the northern portion of California's expansive Central Valley. With a population of 466,488 at the 2010 census,...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Example of the final phase of US steam locomotive development in size and power.
63	1981	Jackson Ferry Shot Tower		1807	Austinville Austinville, Virginia Austinville is an unincorporated community that spans both Carroll County and Wythe County, Virginia, United States. New River Trail State Park runs through Austinville. Shot Tower Historical State Park is located nearby. The town is the birthplace of Stephen F. Austin, for whose family it is...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the few surviving shot towers for making spherical lead shot.
64	1981	Graue Mill Graue Mill The Graue Mill is a water-powered grist mill that was originally erected in 1852. Now a museum, it is one of two operating water-powered gristmills in Illinois...		1852	Oak Brook Oak Brook, Illinois Oak Brook is a village in DuPage and Cook Counties, in Illinois. The population was 8,702 at the 2000 census. A suburb of Chicago, it is the headquarters of McDonald's and Lions Clubs International.-History:...	Illinois Illinois Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of a few survivors of typical US mill machinery with wood as the principal material.
65	1981	Evinrude Outboard Motor Evinrude Outboard Motors Evinrude Outboard Motors is a company that builds a major brand of outboard motors for boats. Founded by Ole Evinrude in Milwaukee, Wisconsin in 1907, it was formerly owned by the publicly traded Outboard Marine Corporation , and is now owned by privately held Bombardier Recreational Products.-...  located at Outboard Marine Corporation		1909	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early model of outboard motor for small boats, now standard.
66	1981	Mount Wilson Observatory Mount Wilson Observatory The Mount Wilson Observatory is an astronomical observatory in Los Angeles County, California, United States. The MWO is located on Mount Wilson, a 5,715 foot peak in the San Gabriel Mountains near Pasadena, northeast of Los Angeles... , 100-inch Hooker Telescope		1918	Los Angeles County Los Angeles County, California Los Angeles County is a county in the U.S. state of California. As of 2010 U.S. Census, the county had a population of 9,818,605, making it the most populous county in the United States. Los Angeles County alone is more populous than 42 individual U.S. states...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Unique telescope mirror support and use of mercury flotation to reduce friction.
67	1981	Hiwassee Dam Unit 2 Reversible Pump-Turbine Hiwassee Dam Hiwassee Dam is a hydroelectric dam on the Hiwassee River in Cherokee County, in the U.S. state of North Carolina. It is one of three dams on the river owned and operated by the Tennessee Valley Authority, which built the dam in the late 1930s to bring flood control and electricity to the region. ...		1956	Cherokee County Cherokee County, North Carolina - Transportation :Cherokee County is well known in North Carolina as the westernmost of the state's 100 counties. Several US and state highways serve the county, linking it with other regions of North Carolina, along with the neighboring states of Georgia and Tennessee.US 64 - the longest highway...	North Carolina North Carolina North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first integrated pump-turbine to be installed in a US power plant and also the largest and most powerful in the mid-20th century.
68	1981	Edison Experimental Recording Phonograph Phonograph The phonograph record player, or gramophone is a device introduced in 1877 that has had continued common use for reproducing sound recordings, although when first developed, the phonograph was used to both record and reproduce sounds...		1877	West Orange West Orange, New Jersey West Orange is a township in central Essex County, New Jersey, United States. As of the 2010 United States Census, the township population was 46,207...	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first practical sound recording machine.
69	1981	Creusot Steam Hammer Creusot steam hammer The Creusot steam hammer was a giant steam hammer built in 1877 by Schneider and Co. in the French industrial town of Le Creusot. With the ability to deliver a blow of up to 100 tons, the Creusot hammer was the most powerful in the world until 1891, when the Bethlehem Iron Company of the United...		1876	Le Creusot Le Creusot Le Creusot is a commune in the Saône-et-Loire department in the region of Bourgogne in eastern France.The inhabitants are known as Creusotins. Formerly a mining town, its economy is now dominated by metallurgical companies such as ArcelorMittal, Schneider Electric, and Alstom.Since the 1990s, the...	Saône-et-Loire Saône-et-Loire Saône-et-Loire is a French department, named after the Saône and the Loire rivers between which it lies.-History:When it was formed during the French Revolution, as of March 4, 1790 in fulfillment of the law of December 22, 1789, the new department combined parts of the provinces of southern...	France France The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...	The most powerful steam hammer in the world for many years.
70	1981	Newcomen Engine Newcomen steam engine The atmospheric engine invented by Thomas Newcomen in 1712, today referred to as a Newcomen steam engine , was the first practical device to harness the power of steam to produce mechanical work. Newcomen engines were used throughout Britain and Europe, principally to pump water out of mines,...		1712	Dartmouth Dartmouth, Devon Dartmouth is a town and civil parish in the English county of Devon. It is a tourist destination set on the banks of the estuary of the River Dart, which is a long narrow tidal ria that runs inland as far as Totnes...	South Devon South Devon South Devon is the southern part of the county of Devon, England.South Devon may also refer to*South Devon Area of Outstanding Natural Beauty*South Devon *South Devon College*South Devon cattle, a breed of cattle...	United Kingdom United Kingdom The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...	Direct descendant of Thomas Newcomen's first atmospheric steam engine. Located at the Dartmouth Museum Dartmouth Museum Dartmouth Museum is a local museum in Dartmouth, Devon, which displays and chronicles the history of the port of Dartmouth. It moved to its current location in the 1950s and is housed in a merchant's house which, in 1671, entertained Charles II and where he held court during a storm which forced... .
71	1981	ALCOA 50,000-ton Hydraulic Forging Press		1954	Cleveland	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the world's largest fabrication tools, dominant in aircraft and aerospace development.
72	1981	Rotating-arm Model-test Facility at Stevens Institute of Technology Stevens Institute of Technology Stevens Institute of Technology is a technological university located on a campus in Hoboken, New Jersey, USA – founded in 1870 with an 1868 bequest from Edwin A. Stevens. It is known for its engineering, science, and technological management curricula.The institute has produced leading...		1945	Hoboken Hoboken, New Jersey Hoboken is a city in Hudson County, New Jersey, United States. As of the 2010 United States Census, the city's population was 50,005. The city is part of the New York metropolitan area and contains Hoboken Terminal, a major transportation hub for the region...	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first model-test facility to conduct maneuverability and control experiments for surface ships, submersibles, and airships.
73	1982	Turbinia Turbinia Turbinia was the first steam turbine-powered steamship. Built as an experimental vessel in 1894, and easily the fastest ship in the world at that time, Turbinia was demonstrated dramatically at the Spithead Navy Review in 1897 and set the standard for the next generation of steamships, the...		1897	Newcastle upon Tyne Newcastle upon Tyne Newcastle upon Tyne is a city and metropolitan borough of Tyne and Wear, in North East England. Historically a part of Northumberland, it is situated on the north bank of the River Tyne...	Tyne and Wear Tyne and Wear Tyne and Wear is a metropolitan county in north east England around the mouths of the Rivers Tyne and Wear. It came into existence as a metropolitan county in 1974 after the passage of the Local Government Act 1972...	United Kingdom United Kingdom The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...	The world's first turbine-driven ship.
74	1982	Anderson-Barngrover Rotary Pressure Sterilizer		1920	Santa Clara Santa Clara, California Santa Clara , founded in 1777 and incorporated in 1852, is a city in Santa Clara County, in the U.S. state of California. The city is the site of the eighth of 21 California missions, Mission Santa Clara de Asís, and was named after the mission. The Mission and Mission Gardens are located on the...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first continuous-stream automation of the cooking and cooling system for canned food.
75	1982	Alden Research Laboratory Alden Research Laboratory Alden Research Laboratory, Inc. was founded in 1894 as part of Worcester Polytechnic Institute . It is the oldest continuously operating hydraulic laboratory in the United States. Today, as an independent entity, Alden has become a recognized leader in the field of fluid dynamics research and...  Rotating Boom		1908	Holden Holden, Massachusetts Holden is a town in Worcester County, Massachusetts, United States. The town was founded in 1741, and the Town Square was donated by John Hancock, former Governor of Massachusetts.The population was 17,346 at the 2010 census.-Geography:...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early 20th-century test facility for current meters, aircraft propellers, ships' logs, pitot tubes, and mine-sweeping paravanes.
76	1982	AC Electrification of the New York, New Haven & Hartford Railroad		1907	Cos Cob Cos Cob, Connecticut Cos Cob is a neighborhood and census-designated place in the town of Greenwich, Connecticut. It is located at 41.033 north, 73.6 west, on the Connecticut shoreline in southern Fairfield County. It had a population of 6,770 at the 2010 census....	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A pioneering venture in mainline railroad electrification. The Cos Cob plant operated until October 1986, demolished in 2001. Artifacts were given to the Smithsonian Institution.
77	1982	Worthington Horizontal Cross-compound Pumping		1925	Erie Erie, Pennsylvania Erie is a city located in northwestern Pennsylvania in the United States. Named for the lake and the Native American tribe that resided along its southern shore, Erie is the state's fourth-largest city , with a population of 102,000...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Corliss-driven pump, typical of early 20th-century US practice.
78	1982	Electro-Motive FT Freight-service Diesel-Electric Locomotive EMD FT The EMD FT was a diesel-electric locomotive produced between November 1939, and November 1945, by General Motors' Electro-Motive Division . All told 555 cab-equipped A units were built, along with 541 cabless booster B units, for a grand total of 1,096 units. The locomotives were all sold to...		1939	St. Louis St. Louis, Missouri St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...	Missouri Missouri Missouri is a US state located in the Midwestern United States, bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. With a 2010 population of 5,988,927, Missouri is the 18th most populous state in the nation and the fifth most populous in the Midwest. It...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Prototype of the first mass-produced diesel-electric locomotives used for US freight service. Located at Museum of Transportation Museum of Transportation The Museum of Transportation of the St. Louis County, Missouri, United States Parks Department is a museum located in the Greater St. Louis area. It was first founded in 1944 by a group of individuals dedicated to preserving the past and has a wide variety of vehicles from American history...  as Southern Railway Locomotive #6100.
79	1982	Lombard Steam Log Hauler Lombard Steam Log Hauler The Lombard Steam Log Hauler, patented 29 May 1901, was the first successful commercial application of a continuous track for vehicle propulsion. The concept was later used for military tanks during World War I and for agricultural tractors and construction equipment following the...		1910	Patten Patten, Maine Patten is a town in Penobscot County, Maine, United States. The town was named for Amos Patten, an early settler. The population was 1,200 at the 2009 census.-Geography and history:...	Maine Maine Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first practical example of crawler-tread vehicles now used in agricultural, construction, and military equipment. Located at the Lumberman's Museum.
80	1982	Aberdeen Range, Aberdeen Proving Ground Aberdeen Proving Ground Aberdeen Proving Ground is a United States Army facility located near Aberdeen, Maryland, . Part of the facility is a census-designated place , which had a population of 3,116 at the 2000 census.- History :...		1943	Aberdeen Aberdeen, Maryland As of the census of 2000, there were 13,842 people, 5,475 households, and 3,712 families residing in the city. The population density was 2,166.2 people per square mile . There were 5,894 housing units at an average density of 922.4 per square mile...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first large-scale, fully instrumented ballistic range for producing data on aerodynamics.
81	1983	Corning Ribbon Machine		1926	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest example of the machine that automated light-bulb manufacture. Located at the Henry Ford Museum.
82	1983	FMC Citrus Juice Extractor		1947	Lakeland Lakeland, Florida Lakeland is a city in Polk County, Florida, United States, located approximately midway between Tampa and Orlando along Interstate 4. According to the 2008 U.S. Census Bureau estimate, the city had a population of 94,406...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early examples of machines that automated extraction of juices from fruit. Item no longer exists.
83	1983	Pennsylvania Railroad GG1 Electric Locomotive #4800 PRR 4800 PRR 4800, nicknamed "Old Rivets", is a GG1-class electric locomotive located at the Railroad Museum of Pennsylvania, outside of Strasburg, Pennsylvania in the United States. It is the prototype GG1 and was originally numbered 4899. Built by General Electric in 1934, the locomotive competed against...		1943	Strasburg Strasburg, Pennsylvania Strasburg is a borough in Lancaster County, Pennsylvania, United States. It developed as a linear village along the Great Conestoga Road, stretching about two miles along path later known as the Strasburg Road...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Locomotive prototype for use on electrified lines in eastern US, also exceptional for its flexible suspension system. Located at the Railroad Museum of Pennsylvania Railroad Museum of Pennsylvania The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania.The museum is located on the east side of Strasburg along Pennsylvania Route 741...
84	1983	Reed Gold Mine Reed Gold Mine The Reed Gold Mine is located in Midland, Cabarrus County, North Carolina, and is the site of the first documented commercial gold find in the United States...  Ten-Stamp Mill		1895	Midland Midland, North Carolina Midland is a town in southern Cabarrus County in the U.S. state of North Carolina. Located in the south-central portion of the state, it lies in the region known as the Piedmont. The name of the town is derived from its location approximately one-half way between Charlotte and Oakboro on the...	North Carolina North Carolina North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Typical late 19th-century western-US stamp mill.
85	1983	PACECO Container Crane		1959	Alameda Alameda, California Alameda is a city in Alameda County, California, United States. It is located on Alameda Island and Bay Farm Island, and is adjacent to Oakland in the San Francisco Bay. The Bay Farm Island portion of the city is adjacent to the Oakland International Airport. At the 2010 census, the city had a...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first high-speed, dockside container-handling crane. The cranes were purchased in 1987 by the Port of Nanjing, China where they are now located. They were redesignated in 1988 in conjunction with the Chinese Mechanical Engineering Society.
86	1983	Owens AR Bottle Machine		1912	Toledo Toledo, Ohio Toledo is the fourth most populous city in the U.S. state of Ohio and is the county seat of Lucas County. Toledo is in northwest Ohio, on the western end of Lake Erie, and borders the State of Michigan...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	World's first automated bottling machine that introduced cheap and plentiful supply of glass containers. No longer exists.
87	1983	NS Savannah NS Savannah NS Savannah, named for SS Savannah, was the first nuclear-powered cargo-passenger ship, built in the late 1950s at a cost of $46.9 million, including a $28.3 million nuclear reactor and fuel core, funded by United States government agencies as a demonstration project for the potential...		1962	Newport News Newport News, Virginia Newport News is an independent city located in the Hampton Roads metropolitan area of Virginia. It is at the southeastern end of the Virginia Peninsula, on the north shore of the James River extending southeast from Skiffe's Creek along many miles of waterfront to the river's mouth at Newport News...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first nuclear-powered cargo-passenger ship.
88	1983	Xerography Xerography Xerography is a dry photocopying technique invented by Chester Carlson in 1938, for which he was awarded on October 6, 1942. Carlson originally called his invention electrophotography...		1948	Columbus Columbus, Ohio Columbus is the capital of and the largest city in the U.S. state of Ohio. The broader metropolitan area encompasses several counties and is the third largest in Ohio behind those of Cleveland and Cincinnati. Columbus is the third largest city in the American Midwest, and the fifteenth largest city...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early models of revolutionary dry-copying process at the Battelle Memorial Institute Battelle Memorial Institute Battelle Memorial Institute is a private nonprofit applied science and technology development company headquartered in Columbus, Ohio. Battelle is a charitable trust organized as a nonprofit corporation under the laws of the State of Ohio and is exempt from taxation under Section 501 of the... .
89	1983	Wyman-Gordon 50,000-ton Hydraulic Forging Pres		1955	Grafton Grafton, Massachusetts Grafton is a town in Worcester County, Massachusetts, United States. The population was 17,765 at the 2010 census. Grafton is the home of a Nipmuc village known as Hassanamisco Reservation, the Willard House and Clock Museum, and the Tufts University Cummings School of Veterinary Medicine...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the world's largest fabrication tools, influencing aviation and aerospace technology.
90	1984	IBM 350 RAMAC Disk File		1956	San Jose San Jose, California San Jose is the third-largest city in California, the tenth-largest in the U.S., and the county seat of Santa Clara County which is located at the southern end of San Francisco Bay...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	World's first computer storage device with random access to large volumes of data.
91	1984	Archimedes Screw Pump		1890	Newark Newark, California Newark is a city in Alameda County, California, United States. It was incorporated as a city in September 1955. Newark is an enclave, completely surrounded by the city of Fremont. Its population was 42,573 at the 2010 census.-Geography:...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the US's oldest surviving examples of the wind-driven Archimedes screw-pump.
92	1984	Stanford Linear Accelerator Center SLAC National Accelerator Laboratory The SLAC National Accelerator Laboratory, originally named Stanford Linear Accelerator Center, is a United States Department of Energy National Laboratory operated by Stanford University under the programmatic direction of the U.S...		1962	Menlo Park Menlo Park, California Menlo Park, California is a city at the eastern edge of San Mateo County, in the San Francisco Bay Area of California, in the United States. It is bordered by San Francisco Bay on the north and east; East Palo Alto, Palo Alto, and Stanford to the south; Atherton, North Fair Oaks, and Redwood City...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Unique electromechanical devices and systems in the longest accelerator in the world.
93	1984	Holland Tunnel Holland Tunnel The Holland Tunnel is a highway tunnel under the Hudson River connecting the island of Manhattan in New York City with Jersey City, New Jersey at Interstate 78 on the mainland. Unusual for an American public works project, it is not named for a government official, politician, or local hero or...  Ventilation System		1920	New York New York City New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first long underwater tunnel designed for motor vehicles, with innovative ventilating system.
94	1984	Norfolk & Western #611, Class J Steam Locomotive		1941	Roanoke Roanoke, Virginia Roanoke is an independent city in the Mid-Atlantic U.S. state of Virginia and is the tenth-largest city in the Commonwealth. It is located in the Roanoke Valley of the Roanoke Region of Virginia. The population within the city limits was 97,032 as of 2010...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The last survivor of US coal-fired passenger locomotives, considered among the most advanced of any 4-8-4. Located at Virginia Museum of Transportation Virginia Museum of Transportation The Virginia Museum of Transportation is a museum devoted to the topic of transportation located in Downtown Roanoke, Virginia, U.S.A..- History :...
95	1984	Sikorsky VS-300 Helicopter		1939	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first practical US helicopter, pioneering the single-main-rotor concept. Located a the Henry Ford Museum.
96	1984	Quincy Mining Company No. 2 Mine Hoist Quincy Mine The Quincy Mine is an extensive set of copper mines located near Hancock, Michigan. The mine was owned by the Quincy Mining Company and operated between 1846 and 1945, although some activities continued through the 1970s. The Quincy Mine was known as "Old Reliable," as the Quincy Mine Company paid...		1920	Hancock Hancock, Michigan Hancock is a city in Houghton County; the northernmost in the U.S. state of Michigan, located on the Keweenaw Peninsula, or, depending on terminology, Copper Island. The population was 4,634 at the 2010 census...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's largest mine hoist.
97	1984	SS Great Britain SS Great Britain SS Great Britain was an advanced passenger steamship designed by Isambard Kingdom Brunel for the Great Western Steamship Company's transatlantic service between Bristol and New York. While other ships had previously been built of iron or equipped with a screw propeller, Great Britain was the first...		1843	Bristol Bristol Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...	Bristol Bristol Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...	United Kingdom United Kingdom The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...	The world's first iron-hulled, screw-propelled ship to cross any ocean, leading to Britain's world leadership in maritime commerce.
98	1984	SS Jeremiah O'Brien SS Jeremiah O'Brien -See also:*Liberty ship*Victory ship - other surviving Liberty ship*Nash - last surviving Army ship at D-Day...		1943	San Francisco	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of only two operating survivors of the US emergency-cargo fleet known as Liberty Ships.
99	1984	Idols Station, Fries Manufacturing & Power Company		1898	Winston-Salem Winston-Salem, North Carolina Winston-Salem is a city in the U.S. state of North Carolina, with a 2010 population of 229,617. Winston-Salem is the county seat and largest city of Forsyth County and the fourth-largest city in the state. Winston-Salem is the second largest municipality in the Piedmont Triad region and is home to...	North Carolina North Carolina North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Typical 19th-century small-scale, low-head run-of-the-river hydroelectric plant.
100	1984	Belle Isle Gas Turbine		1949	Schenectady Schenectady, New York Schenectady is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2010 census, the city had a population of 66,135...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first gas turbine used for electric utility power generation in the United States.
101	1984	St. Charles Avenue Streetcar Line		1835	New Orleans	Louisiana Louisiana Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest surviving interurban-urban passenger rail transport system in the United States.
102	1985	Atlas Launch Vehicle		1957	El Cajon El Cajon, California -History:El Cajon is located on the Rancho El Cajon Mexican land grant made in 1845 to María Antonia Estudillo, wife of Miguel Pedrorena. In 1876 Amaziah Lord Knox , a New Englander who had recently moved to California, established a hotel there to serve the growing number of people traveling...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First launch vehicle for the US space program.
103	1985	First Hot Isostatic Processing Vessels		1956	Columbus Columbus, Ohio Columbus is the capital of and the largest city in the U.S. state of Ohio. The broader metropolitan area encompasses several counties and is the third largest in Ohio behind those of Cleveland and Cincinnati. Columbus is the third largest city in the American Midwest, and the fifteenth largest city...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early examples of fabrication vessels using gas pressure and temperature to produce advanced alloy and ceramic products. Located at Battelle Memorial Institute Battelle Memorial Institute Battelle Memorial Institute is a private nonprofit applied science and technology development company headquartered in Columbus, Ohio. Battelle is a charitable trust organized as a nonprofit corporation under the laws of the State of Ohio and is exempt from taxation under Section 501 of the...
104	1985	Basic-Oxygen Steel Making Vessel		1955	Trenton Trenton, Michigan Trenton is a small city in Wayne County in the southeast portion of the U.S. state of Michigan. As of the 2010 census, the city population was 18,853...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Vessel that introduced the basic oxygen process to the United States. Presently owned by Detroit Steel Company.
105	1985	Detroit Edison Detroit Edison The Detroit Edison Company, founded in 1903, is an investor-owned electric utility which serves most of Southeast Michigan. Its parent company, DTE Energy , provides energy services to a variety of clients beyond Detroit Edison's service area.- History :...  District Heating System		1903	Detroit	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early example of typical US district heating plant.
106	1985	Cornwall Iron Furnace Cornwall Iron Furnace Cornwall Iron Furnace is a designated National Historic Landmark that is administered by the Pennsylvania Historical and Museum Commission in Cornwall, Lebanon County, Pennsylvania in the United States. The furnace was a leading Pennsylvania iron producer from 1742 until it was shut down in 1883...		1742	Cornwall Cornwall, Pennsylvania Cornwall is a borough in Lebanon County, Pennsylvania, United States. It is part of the Lebanon, PA Metropolitan Statistical Area. The population was 3,486 at the 2000 census.-History:...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Typical 19th-century US charcoal-fueled blast furnace, fully intact.
107	1985	Lowell Power Canal System and Pawtucket Gatehouse Lowell Power Canal System and Pawtucket Gatehouse Main Article History of Lowell, MassachusettsThe Lowell Power Canal System is the largest power canal system in the United States, at 5.6 miles in length. The system's estimated output is 10,000 horsepower, operating six major canals on two levels, controlled by numerous gates...		1796	Lowell Lowell, Massachusetts Lowell is a city in Middlesex County, Massachusetts, USA. According to the 2010 census, the city's population was 106,519. It is the fourth largest city in the state. Lowell and Cambridge are the county seats of Middlesex County...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early major US water-power system and the first Francis inward-flow water turbine placed in service and oldest in existence.
108	1985	Jacobs Engine Brake Retarder Jake brake A compression release engine brake, frequently called a Jake brake or Jacobs brake, is an engine braking mechanism installed on some diesel engines...		1957	Bloomfield Bloomfield, Connecticut Bloomfield is a town in Hartford County, Connecticut, United States. The population was 20,626 at the 2009 census.-Geography:According to the United States Census Bureau, the town has a total area of , of which is land and 0.2 square miles is water.Bloomfield is bordered by Windsor to the...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first practical mechanism for braking large trucks with engine compression as they descend long, steep grades at controlled speeds.
109	1985	Geysers Unit 1 The Geysers The Geysers is a complex of 22 geothermal power plants, drawing steam from more than 350 wells, located in the Mayacamas Mountains north of San Francisco, California.The largest in the world, the Geysers has...		1960	Sonoma County Sonoma County, California Sonoma County, located on the northern coast of the U.S. state of California, is the largest and northernmost of the nine San Francisco Bay Area counties. Its population at the 2010 census was 483,878. Its largest city and county seat is Santa Rosa....	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first commercial geothermal electricity-generating station in North America.
110	1985	Harris-Corliss Steam Engine		1895	Atlanta	Georgia Georgia (U.S. state) Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Example of a late 19th-century 350-hp Corliss-type steam engine. Located at Randall Brothers, Inc.
111	1986	Boulton & Watt Rotative Steam Engine Boulton and Watt steam engine (Powerhouse Museum) The Boulton and Watt steam engine preserved in the Powerhouse Museum in Sydney, Australia, built in 1785, is one of the first rotative steam engines ever built, and is the oldest surviving...		1785	Sydney Sydney Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...	New South Wales New South Wales New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...	Australia Australia Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...	Oldest surviving operable rotative steam engine by Boulton and Watt. Located at the Powerhouse Museum Powerhouse Museum The Powerhouse Museum is the major branch of the Museum of Applied Arts and Sciences in Sydney, the other being the historic Sydney Observatory... .
112	1985	TV Emery Rice Steam Engine USS Nantucket (IX-18) |...		1873	Kings Point Kings Point, New York Kings Point is a village and a part of Great Neck in Nassau County, New York on the North Shore of Long Island. As of the United States 2010 Census, the village population was 5,005.The Village of Kings Point is in the Town of North Hempstead...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Mid-19th-century horizontal compound marine steam engine with return connecting rod.
113	1986	Fairbanks Exploration Company Gold Dredge No. Goldstream Dredge No. 8 Goldstream Dredge No. 8 is a ladder dredge operated by the Fairbanks Exploration Co. from 1928 to 1959. It is located on the Steese Highway between Fairbanks and Fox, Alaska....		1927	Fairbanks Fairbanks, Alaska Fairbanks is a home rule city in and the borough seat of the Fairbanks North Star Borough in the U.S. state of Alaska.Fairbanks is the largest city in the Interior region of Alaska, and second largest in the state behind Anchorage...	Alaska Alaska Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the last mammoth gold dredges in the United States accessible to the public.
114	1986	Pitney-Bowes Model M Postage Meter Arthur Pitney Arthur H. Pitney was an American inventor best known as the father of the postage meter.Postage meters are used today by millions of businesses to imprint postage on envelopes and parcels...		1920	Stamford Stamford, Connecticut Stamford is a city in Fairfield County, Connecticut, United States. According to the 2010 census, the population of the city is 122,643, making it the fourth largest city in the state and the eighth largest city in New England...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early model of world's first commercial postage meter.
115	1986	Disneyland Monorail System Disneyland Monorail System The Disneyland Monorail System is an attraction and transportation system at the Disneyland Resort in Anaheim, California, USA...		1959	Anaheim Anaheim, California Anaheim is a city in Orange County, California. As of the 2010 United States Census, the city population was about 365,463, making it the most populated city in Orange County, the 10th most-populated city in California, and ranked 54th in the United States...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first commercial Wenner-Gren monorail system.
116	1987	McKinley Climatic Laboratory McKinley Climatic Laboratory The McKinley Climatic Laboratory is a both an active laboratory and a historic site located in Building 440 on Eglin Air Force Base, Florida. The laboratory is part of the 46th Test Wing. In addition to Air Force testing, it can be used by other US government agencies and private industry.On...		1944	Eglin Air Force Base Eglin Air Force Base Eglin Air Force Base is a United States Air Force base located approximately 3 miles southwest of Valparaiso, Florida in Okaloosa County....	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Test facility with unequalled capacity to simulate a wide range of climatic conditions from arctic cold to jungle moisture for full-scale equipment testing.
117	1987	Icing Research Tunnel, NASA Lewis Research Center Glenn Research Center NASA John H. Glenn Research Center at Lewis Field is a NASA center, located within the cities of Brook Park, Cleveland and Fairview Park, Ohio between Cleveland Hopkins International Airport and the Cleveland Metroparks's Rocky River Reservation, and has other subsidiary facilities in Ohio...		1944	Cleveland	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's oldest and largest refrigerated icing wind tunnel, with unique heat exchanger and spray system.
118	1987	Samson Mine Reversible Waterwheel & Man Engine		1837	Sankt Andreasberg Sankt Andreasberg Sankt Andreasberg is a town and a former municipality in the district of Goslar, in Lower Saxony, Germany. Since 1 November 2011, it is part of the town Braunlage. It is situated in the Harz, approximately 7 km west of Braunlage proper, and 20 km east of Osterode am Harz.- History :Sankt...	Lower Saxony Lower Saxony Lower Saxony is a German state situated in north-western Germany and is second in area and fourth in population among the sixteen states of Germany...	Germany Germany Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...	Hoists representative of bygone practice, including a waterwheel for ore hoisting and a mechanism to hoist workers.
119	1987	American Precision Museum American Precision Museum American Precision Museum founded by Edwin Albert Battison in 1966 is located at 196 Main Street, Windsor, Vermont in a building which was once home to the Robbins & Lawrence Armory company. The museum is home to the largest collection of historically significant machine tools in the United States...		1966	Windsor Windsor, Vermont Windsor is a town in Windsor County, Vermont, United States. The population was 3,756 at the 2000 census.-History:One of the New Hampshire grants, Windsor was chartered as a town on July 6, 1761 by Colonial Governor Benning Wentworth. It was first settled in August 1764 by Captain Steele Smith and...	Vermont Vermont Vermont is a state in the New England region of the northeastern United States of America. The state ranks 43rd in land area, , and 45th in total area. Its population according to the 2010 census, 630,337, is the second smallest in the country, larger only than Wyoming. It is the only New England...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...
120	1987	Robbins & Lawrence Machine Shop		1846	Windsor Windsor, Vermont Windsor is a town in Windsor County, Vermont, United States. The population was 3,756 at the 2000 census.-History:One of the New Hampshire grants, Windsor was chartered as a town on July 6, 1761 by Colonial Governor Benning Wentworth. It was first settled in August 1764 by Captain Steele Smith and...	Vermont Vermont Vermont is a state in the New England region of the northeastern United States of America. The state ranks 43rd in land area, , and 45th in total area. Its population according to the 2010 census, 630,337, is the second smallest in the country, larger only than Wyoming. It is the only New England...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Site of first machine shop to achieve interchangeable manufacture on a practical scale.
121	1987	Holly Fire Protection and Water System Birdsill Holly Birdsill Holly was an inventor. Holly was born in Auburn, New York. He spent his early years in Seneca Falls, New York, a major center of water powered industries. His first patented invention was a rotary water pump.-Life:...		1863	Lockport	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Site of the first US integrated system to supply water for public safety.
122	1987	Holly District Heating System Birdsill Holly Birdsill Holly was an inventor. Holly was born in Auburn, New York. He spent his early years in Seneca Falls, New York, a major center of water powered industries. His first patented invention was a rotary water pump.-Life:...		1877	Lockport	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Site of the first US district heating steam-heating system.
123	1987	Kingsbury Thrust Bearing		1911	Holtwood Holtwood, Pennsylvania Holtwood, Pennsylvania is a village in Martic Township, Lancaster County in the U.S. state of Pennsylvania.Holtwood is the site of the Muddy Run Pumped Storage Hydroelectric Power Plant , along the Susquehanna River...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First and still-operating Kingsbury thrust bearing in hydroelectric service, later used worldwide for all types of large machinery. Located at Holtwood Dam Holtwood Dam Holtwood Dam is the oldest of three major dams built across the lower Susquehanna River, and the middle location of the three. It was constructed as the McCalls Ferry Dam between 1905 and 1910 by the Pennsylvania Water & Power Company... .
124	1987	Chapin Mine Pump		1893	Iron Mountain Iron Mountain, Michigan Iron Mountain is a city in the U.S. state of Michigan. As of the 2000 census, the city population was 8,154. It is the county seat of Dickinson County, in the state's Upper Peninsula....	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Late 19th-century steeple compound-condensing engine and one of the largest at the time.
125	1987	Pullman Sleeping Car Glengyle		1911	Dallas	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest known survivor of the fleet of heavyweight, all-steel sleepers built by the Pullman Company. Located at Museum of the American Railroad Museum of the American Railroad The Museum of the American Railroad, formerly known as the Age of Steam Railroad Museum, is located at 1105 Washington Street in Fair Park, Dallas, Texas. The museum has a large collection of steam, diesel and passenger railroad equipment... .
126	1987	Westmoreland Iron Works		1850	Westmoreland Westmoreland, New York Westmoreland is a town in Oneida County, New York, United States. The population was 6,207 at the 2000 census.The Town of Westmoreland is in the west-central part of the county. The New York State Thruway passes across the town. Westmoreland is west of Utica, New York.The Westmoreland Central...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An early and long-running malleable ironworks.
127	1987	Big Brutus Mine Shovel Big Brutus Big Brutus is the nickname of the Bucyrus-Erie model 1850B electric shovel, which was the second largest of its type in operation in the 1960s and 1970s. It is currently the centerpiece of a mining museum in West Mineral, Kansas.-Description:...		1962	West Mineral West Mineral, Kansas West Mineral is a city in Cherokee County, Kansas, United States. The population was 243 at the 2000 census. It is the home of Big Brutus, the second largest electric shovel in the world.-Geography:West Mineral is located at...	Kansas Kansas Kansas is a US state located in the Midwestern United States. It is named after the Kansas River which flows through it, which in turn was named after the Kansa Native American tribe, which inhabited the area. The tribe's name is often said to mean "people of the wind" or "people of the south...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the world's largest power shovels.
128	1987	Vallecitos Boiling Water Reactor		1957	Alameda County Alameda County, California Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first privately owned and operated nuclear power plant to deliver significant quantities of electricity to a public utility grid.
129	1987	Holyoke Water Power System Holyoke Canal System The Holyoke Canal System is a system of power canals in Holyoke, Massachusetts. Its major canals are called the First Level Canal, Second Level Canal, and Third Level Canal.- History :...		1859	Holyoke Holyoke, Massachusetts Holyoke is a city in Hampden County, Massachusetts, United States, between the western bank of the Connecticut River and the Mount Tom Range of mountains. As of the 2010 Census, the city had a population of 39,880...	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Major 19th-century US industrial center for paper and textile industries, known for its machine shops and water-power system. See also: Holyoke Heritage State Park Holyoke Heritage State Park Holyoke Heritage State Park celebrates the history and culture of the City of Holyoke, Massachusetts. It is operated and managed by the Massachusetts Department of Conservation and Recreation. Park features include a visitor center with exhibits about paper manufacturing and Holyoke's industrial...
130	1987	Stirling Water-tube Boilers Stirling boiler The Stirling boiler is an early form of water-tube boiler, used to generate steam in large land-based stationary plants. Although widely used around 1900, it has now fallen from favour and is rarely seen.- Design :...		1906	Dalton Dalton, Georgia Dalton is a city in Whitfield County, Georgia, United States. It is the county seat of Whitfield County and the principal city of the Dalton, Georgia Metropolitan Statistical Area, which encompasses all of both Murray and Whitfield counties. As of the 2010 census, the city had a population of 33,128...	Georgia Georgia (U.S. state) Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Oldest existing steam generator in a US cotton mill.
131	1988	Roosa Master Diesel Fuel-Injection Pump		1947	Windsor Windsor, Connecticut Windsor is a town in Hartford County, Connecticut, United States, and was the first English settlement in the state. It lies on the northern border of Connecticut's capital, Hartford. The population was estimated at 28,778 in 2005....	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early developmental models of distributor-type injection pump for controlling engine speed.
132	1988	Chicago Burlington & Quincy Railroad Roundhouse America's Historical Roundhouse The Two Brothers Roundhouse, formerly the Walter Payton Roundhouse, America's Historical Roundhouse, and Chicago, Burlington, & Quincy Roundhouse and Locomotive Shop is a historic building converted to a restaurant in Aurora, Illinois...		1858	Aurora Aurora, Illinois Aurora is the second most populous city in the U.S. state of Illinois, and the 112th largest city in the United States. A suburb of Chicago, located west of the Loop, its population in 2010 was 197,899. Originally founded within Kane County, Aurora's city limits have expanded greatly over the past...	Illinois Illinois Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Innovative railroad yard machine shop for first railroad linking Chicago and the Mississippi River.
133	1988	Buckeye Steam Traction Ditcher James B. Hill James B. Hill was an American inventor.Hill worked as a drainage tiler in northwestern Ohio in the 1870s and 1880s, during which time he devised a machine that he later named the Buckeye Traction Ditcher...		1902	Findlay Findlay, Ohio As of the census of 2000, there were 38,967 people, 15,905 households, and 10,004 families residing in the city. The population density was 2,266.3 people per square mile . There were 17,152 housing units at an average density of 997.6 per square mile...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest surviving example of the first successful traction ditching machine for laying agricultural drainage tiles. Located at Hancock Historical Museum.
134	1988	Geared Locomotives of Heisler, Shay, Climax Roaring Camp and Big Trees Narrow Gauge Railroad The Roaring Camp & Big Trees Railroad is a narrow gauge tourist railroad in California that starts from the Roaring Camp depot in Felton, California and runs up steep grades to the top of nearby Bear Mountain, a distance of 3.25 miles The travel is through a redwood forest.The steam engines date...		1872	Felton Felton, California -2010:The 2010 United States Census reported that Felton had a population of 4,057. The population density was 891.2 people per square mile . The racial makeup of Felton was 3,691 White, 25 African American, 29 Native American, 69 Asian, 11 Pacific Islander, 60 from other races, and 172 from...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early examples of small slow-speed 19-century geared locomotives.
135	1988	Neuchâtel Gas Turbine		1939	Neuchâtel	Neuchâtel	Switzerland Switzerland Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....	The world's first successful electricity-generating gas turbine to go into commercial operation.
136	1988	AAR AAR -Aviation:*AAR Corporation, an American aviation engineering company*"Air-to-air refueling", also known as aerial refueling, the practice of transferring fuel from one aircraft to another during flight*AAR, IATA airport code for Aarhus Airport in Tirstrup, Denmark...  Railroad-wheel Dynamometer		1955	Pueblo Pueblo, Colorado Pueblo is a Home Rule Municipality that is the county seat and the most populous city of Pueblo County, Colorado, United States. The population was 106,595 in 2010 census, making it the 246th most populous city in the United States....	Colorado Colorado Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first and only railroad dynamometer to test track wheels using vertical and lateral loads as well as thermal braking at the wheel rim.
137	1989	Texas & Pacific #610 Lima Superpower Steam Locomotive Texas and Pacific 610 Texas and Pacific 610 is a 2-10-4 steam locomotive that was originally operated by the Texas and Pacific Railway . In 1976, the locomotive was used to haul the American Freedom Train for the portion of its tour in Texas....		1927	Rusk Rusk, Texas Rusk is a city in Cherokee County, Texas, United States. The population was 5,085 at the 2000 census. It is the county seat of Cherokee County.-Geography:Rusk is located at ....	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The sole surviving example of the earliest form of "superpower" steam locomotives.
138	1989	ASME Boiler and Pressure Vessel Code		1915	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first comprehensive standard for the design, construction, inspection, and testing of boilers and pressure vessels, greatly influencing public safety. Early book on loan to Henry Ford Museum.
139	1981	Roebling 80-ton Wire Rope Machine		1893	Trenton Trenton, New Jersey Trenton is the capital of the U.S. state of New Jersey and the county seat of Mercer County. As of the 2010 United States Census, Trenton had a population of 84,913...	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The only remaining Roebling machine, largest wire-rope closing machine in 1893.
140	1989	Arnold Air Force Base Arnold Air Force Base Arnold Air Force Base is a United States Air Force base located in Coffee and Franklin counties, Tennessee, adjacent to the city of Tullahoma. It is named for General Henry "Hap" Arnold, the father of the U.S. Air Force....  Wind Tunnel		1955	Arnold Air Force Base Arnold Air Force Base Arnold Air Force Base is a United States Air Force base located in Coffee and Franklin counties, Tennessee, adjacent to the city of Tullahoma. It is named for General Henry "Hap" Arnold, the father of the U.S. Air Force....	Tennessee Tennessee Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first large-scale testing facility for jet and rocket engines in simulated high-speed flight conditions.
141	1989	Browning Firearms Collection		1878	Ogden Ogden, Utah Ogden is a city in Weber County, Utah, United States. Ogden serves as the county seat of Weber County. The population was 82,825 according to the 2010 Census. The city served as a major railway hub through much of its history, and still handles a great deal of freight rail traffic which makes it a...	Utah Utah Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Collection of sporting and military firearms designed by John Moses Browning. Located at Ogden Union Station Museum.
142	1990	Pierce-Donachy Ventricular Assist Device		1973	Hershey Hershey, Pennsylvania Hershey is a census-designated place in Derry Township, Dauphin County in the Commonwealth of Pennsylvania. The community is located 14 miles east of Harrisburg and is part of the Harrisburg–Carlisle Metropolitan Statistical Area. Hershey has no legal status as an incorporated municipality...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first implantable heart pump to receive widespread clinical use.
143	1990	USS Cairo Engine and Boilers USS Cairo (1861) USS Cairo was a City class ironclad gunboat constructed for the Union Navy by James B. Eads during the American Civil War. She was the first vessel of the City class ironclads, also called the Cairo class....		1862	Vicksburg Vicksburg, Mississippi Vicksburg is a city in Warren County, Mississippi, United States. It is the only city in Warren County. It is located northwest of New Orleans on the Mississippi and Yazoo rivers, and due west of Jackson, the state capital. In 1900, 14,834 people lived in Vicksburg; in 1910, 20,814; in 1920,...	Mississippi Mississippi Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Thesole survivor of the fleet of river gunboats built by the Union during the US Civil War.
144	1990	Curtis 500-kW Vertical Turbine		1903	Indianapolis Indianapolis Indianapolis is the capital of the U.S. state of Indiana, and the county seat of Marion County, Indiana. As of the 2010 United States Census, the city's population is 839,489. It is by far Indiana's largest city and, as of the 2010 U.S...	Indiana Indiana Indiana is a US state, admitted to the United States as the 19th on December 11, 1816. It is located in the Midwestern United States and Great Lakes Region. With 6,483,802 residents, the state is ranked 15th in population and 16th in population density. Indiana is ranked 38th in land area and is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first steam turbine electric-generation station.
145	1990	Southern Gas Association-PCRC Analog Facility		1955	San Antonio	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first computer system to be applied to the design of natural-gas pipeline systems.
146	1990	National Soil Dynamics Laboratory		1935	Auburn Auburn, Alabama Auburn is a city in Lee County, Alabama, United States. It is the largest city in eastern Alabama with a 2010 population of 53,380. It is a principal city of the Auburn-Opelika Metropolitan Area...	Alabama Alabama Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first full-size laboratory for tillage tools and traction equipment in all types of soils .
147	1990	Baltimore & Ohio #4500, Freight, USRA 2-8-2A Baltimore and Ohio Railroad locomotives On the Baltimore and Ohio Railroad, locomotives were always considered of great importance, and the railroad was involved in many experiments and innovations.-Early locomotives:...		1918	Baltimore Baltimore Baltimore is the largest independent city in the United States and the largest city and cultural center of the US state of Maryland. The city is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay. Baltimore is sometimes referred to as Baltimore...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first USRA freight locomotive built, representing the first standardized family of US locomotives.
148	1990	Atlantic Coast Line #1504, USRA 4-6-2A		1919	Jacksonville Jacksonville, Florida Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An early example of USRA passenger locomotives representing the first US standardization program. Located at the Prime Osborn Convention Center.
149	1990	Hydromatic Propeller		1938	Windsor Locks Windsor Locks, Connecticut Windsor Locks is a town located in Hartford County, Connecticut, United States. As of the 2000 census, its population was 12,043. It is the site of Bradley International Airport, which serves the Greater Hartford-Springfield region. It is also the site of the New England Air Museum...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early example of propeller innovations, including variable-pitch control and feathering capability. Located at the New England Air Museum New England Air Museum The New England Air Museum is located at Bradley International Airport, Windsor Locks, Connecticut, USA. The museum is housed in three large display buildings consisting of more than of exhibit space... .
150	1990	Pin-Ticketing Machine		1902	Miamisburg Miamisburg, Ohio Miamisburg is a city in Montgomery County, Ohio, United States. The population was 20,181 at the 2010 census. It is part of the Dayton Metropolitan Statistical Area...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early model of first successful price-marking, tag-attachment machine for US retail merchandising.
151	1991	Victoria Dutch Windmill Victoria Grist Windmill Victoria Grist Windmill is an historic gristmill in Memorial Square in Victoria, Texas, United States. The windmill was added to the National Register of Historic Places on April 30, 1976 and became an American Society of Mechanical Engineers Landmark in May, 1991.The windmill was built in 1870 and...		1870	Victoria Victoria, Texas Victoria is a city in and the seat of Victoria County, Texas, United States. The population was 60,603 at the 2000 census. The three counties of the Victoria Metropolitan Statistical Area had a population of 111,163 at the 2000 census,...	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Mid-19th-century wind-powered gristmill of Dutch turret-mill style.
152	1991	Jeep Model MB Willys MB The Willys MB US Army Jeep and the Ford GPW, were manufactured from 1941 to 1945. These small four-wheel drive utility vehicles are considered the iconic World War II Jeep, and inspired many similar light utility vehicles. Over the years, the World War II Jeep later evolved into the "CJ" civilian...		1947	Toledo Toledo, Ohio Toledo is the fourth most populous city in the U.S. state of Ohio and is the county seat of Lucas County. Toledo is in northwest Ohio, on the western end of Lake Erie, and borders the State of Michigan...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early four-wheel drive, multipurpose field vehicle representing an unusual combination of modern vehicle design.
153	1991	Cruquius Pumping Station Museum De Cruquius The Museum De Cruquius occupies the old Cruquius steam pumping station in Cruquius, The Netherlands. It derives its name from Nicolaas Kruik , a Dutch land-surveyor and one of many promotors of a plan to pump the Haarlemmermeer dry. Like many well-educated men of his time, he latinized his name...		1849	Haarlemmermeer Haarlemmermeer Haarlemmermeer is a municipality in the Netherlands, in the province of North Holland. It is a polder, consisting of land reclaimed from water, and the name Haarlemmermeer means Haarlem's Lake, still referring to the body of water from which the region was reclaimed in the 19th century.Its main...	North Holland North Holland North Holland |West Frisian]]: Noard-Holland) is a province situated on the North Sea in the northwest part of the Netherlands. The provincial capital is Haarlem and its largest city is Amsterdam.-Geography:...	Netherlands Netherlands The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...	19th-century steam pumping station that drained the Haarlemmermeer.
154	1991	Greens Bayou Generator Plant		1949	Houston	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first fully outdoor turbine-generator to be placed in commercial operation.
155	1991	Milam High-rise Air Conditioned Building		1928	San Antonio	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first US air-conditioned high-rise office building.
156	1991	Lookout Mountain Incline Railway Lookout Mountain Incline Railway The Lookout Mountain Incline Railway is an inclined plane railway located along the side of Lookout Mountain in Chattanooga, Tennessee, in the United States. Passengers are transported from St. Elmo's Station at the base, to Point Park at the mountain summit, which overlooks the city and the...		1895	Chattanooga Chattanooga, Tennessee Chattanooga is the fourth-largest city in the US state of Tennessee , with a population of 169,887. It is the seat of Hamilton County...	Tennessee Tennessee Tennessee is a U.S. state located in the Southeastern United States. It has a population of 6,346,105, making it the nation's 17th-largest state by population, and covers , making it the 36th-largest by total land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	19th-century 3-rail incline.
157	1991	Pelton Waterwheel Collection North Star Mine Powerhouse The North Star Mine Powerhouse is located at the North Star Mine in Grass Valley, California, USA. When the mining operations expanded subsequent to the California Gold Rush, the powerhouse was added. In 1895, it became the site of the largest tangential water wheel in the world...		ca. 1880	Grass Valley Grass Valley, California -2010:The 2010 United States Census reported that Grass Valley had a population of 12,860. The population density was 2,711.3 people per square mile . The racial makeup of Grass Valley was 11,493 White, 46 African American, 208 Native American, 188 Asian, 9 Pacific Islander, 419 from other...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Collection on the origins of the Pelton turbine and its principle of the "splitter" bucket.
158	1991	Fresno Scraper Fresno Scraper The Fresno Scraper is a machine used for constructing canals and ditches in sandy soil.It was invented in 1883 by the Scottish immigrant and entrepreneur James Porteous who, having worked with farmers in Fresno, California, had recognised the dependence of the Central San Joaquin Valley on...		1883	Fresno Fresno, California Fresno is a city in central California, United States, the county seat of Fresno County. As of the 2010 census, the city's population was 510,365, making it the fifth largest city in California, the largest inland city in California, and the 34th largest in the nation...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	19th-century example of the scraper whose design served as the basis for most giant earth-movers.
159	1991	Nassawango Iron Furnace Nassawango Iron Furnace Site The Nassawango Iron Furnace was built in 1830 by the Maryland Iron Company to produce iron from bog ore deposits in its vicinity. It is notable for its innovative use of a "hot blast" technique for smelting the iron, which had only been developed in England around 1828, and which may have been...		1828	Snow Hill Snow Hill, Maryland Snow Hill is a town in Worcester County, Maryland, United States. The population was 2,409 at the 2000 census. It is the county seat of Worcester County.-History:...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The earliest surviving hot-blast furnace in the United States.
160	1992	ABACUS II Integrated-Circuit Wire Bonder			Dallas	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first practical production machine for the assembly of integrated circuits, making possible their economical production.
161	1992	Q-R-S Marking Piano		1912	Buffalo Buffalo, New York Buffalo is the second most populous city in the state of New York, after New York City. Located in Western New York on the eastern shores of Lake Erie and at the head of the Niagara River across from Fort Erie, Ontario, Buffalo is the seat of Erie County and the principal city of the...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the first machines to produce master rolls for player pianos by recording actual performances.
162	1992	Apollo Space Command Module		1968	Titusville Titusville, Florida Titusville is a city in Brevard County, Florida in the United States. It is the county seat of Brevard County. Nicknamed Space City, USA, Titusville is on the Indian River, west of Merritt Island and the Kennedy Space Center and south-southwest of the Canaveral National Seashore...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Apollo command module incorporating many innovations to allow safe transport of humans to moon and back.
163	1992	Meter-type Gas Odorizer Odorizer An odorizer is a device that adds an odorant to a gas. The most common type is one that adds a smelly mercaptan liquid into gas lines so that leaks can be easily detected and explosions from built up fumes prevented....		1937	Dallas	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early safety device for introducing odor into natural-gas lines to make leaks apparent.
164	1992	New England Wireless and Steam Museum New England Wireless and Steam Museum The New England Wireless and Steam Museum is an electrical and mechanical engineering museum at 1300 Frenchtown Road in East Greenwich, Rhode Island with a working steam engines and an early wireless station and technology archives....		1964	East Greenwich East Greenwich, Rhode Island East Greenwich is a town in and the county seat of Kent County, Rhode Island, United States. The population was 13,146 at the 2010 census. East Greenwich is the wealthiest municipality within the state of Rhode Island....	Rhode Island Rhode Island The state of Rhode Island and Providence Plantations, more commonly referred to as Rhode Island , is a state in the New England region of the United States. It is the smallest U.S. state by area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Collection of Rhode Island steam engines, including one of the few surviving built at the Corliss Works.
165	1992	Old Mill in Nantucket		1746	Nantucket	Massachusetts Massachusetts The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest operating smock-type windmill in the United States.
166	1992	Milwaukee River Flushing Station		1888	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the earliest water-pollution control systems, reducing the concentration of pollutants in an urban stream.
167	1993	Ginaca Pineapple Processing Machine		1911	Honolulu	Hawaii Hawaii Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Example of automated peeling and slicing machine that led to commercial pineapple production.
168	1993	Pegasus 3 Engine BS 916 Rolls-Royce Pegasus The Rolls-Royce Pegasus is a turbofan engine originally designed by Bristol Siddeley, and now manufactured by Rolls-Royce plc. This engine is able to direct thrust downwards which can then be swivelled to power a jet aircraft forward. Lightly loaded, it can also manoeuvre like a helicopter,...		1960	Bristol Bristol Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...	Bristol Bristol Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...	United Kingdom United Kingdom The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...	Earliest surviving example of the prototype engine for vertical/short takeoff and landing (V/STOL) jets, namely Harriers and AV-8Bs.
169	1993	Cryogenic Cooling System, Fermilab Tevatron Tevatron The Tevatron is a circular particle accelerator in the United States, at the Fermi National Accelerator Laboratory , just east of Batavia, Illinois, and is the second highest energy particle collider in the world after the Large Hadron Collider...		1983	Batavia Batavia, Illinois Batavia was founded in 1833, and is the oldest city in Kane County, Illinois, with a small portion in DuPage County. During the Industrial Revolution, Batavia became known as ‘The Windmill City’ for being the largest windmill producer of the time...	Illinois Illinois Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest cryogenic system ever built, providing benchmark for superconducting magnet designs.
170		Advanced Engine Test Facility at Marshall Marshall Space Flight Center The George C. Marshall Space Flight Center is the U.S. government's civilian rocketry and spacecraft propulsion research center. The largest center of NASA, MSFC's first mission was developing the Saturn launch vehicles for the Apollo moon program...		1964	Redstone Arsenal Redstone Arsenal Redstone Arsenal is a United States Army base and a census-designated place adjacent to Huntsville in Madison County, Alabama, United States and is part of the Huntsville-Decatur Combined Statistical Area...	Alabama Alabama Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Unique cooling system for the testing of aerospace engines.
171	1993	Voyager Spacecraft Interplanetary Explorers Voyager program The Voyager program is a U.S program that launched two unmanned space missions, scientific probes Voyager 1 and Voyager 2. They were launched in 1977 to take advantage of a favorable planetary alignment of the late 1970s...		1972–1977	Pasadena Pasadena, California Pasadena is a city in Los Angeles County, California, United States. Although famous for hosting the annual Rose Bowl football game and Tournament of Roses Parade, Pasadena is the home to many scientific and cultural institutions, including the California Institute of Technology , the Jet...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The two most intelligent machines ever built by NASA space program. Display located at Jet Propulsion Laboratory Jet Propulsion Laboratory Jet Propulsion Laboratory is a federally funded research and development center and NASA field center located in the San Gabriel Valley area of Los Angeles County, California, United States. The facility is headquartered in the city of Pasadena on the border of La Cañada Flintridge and Pasadena... .
172	1994	Bay City Walking Dredge Collier-Seminole State Park Collier-Seminole State Park is a Florida State Park located on US 41, south of Naples, Florida. The park is the home of a National Historic Mechanical Engineering Landmark, the Bay City Walking Dredge used to build the Tamiami Trail through the Everglades. The park includes of of mangrove swamp,...		1924	Naples Naples, Florida Naples is a city in Collier County, Florida, United States. As of July 1, 2007, the U.S. Census Bureau estimated the city's population at 21,653. Naples is a principal city of the Naples–Marco Island Metropolitan Statistical Area, which had an estimated total population of 315,839 on July 1, 2007...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The last remaining dredge in the United States with unique propulsion system, designed for a wetlands environment.
173	1994	Burton Farmers Gin Mill		1914	Burton Burton, Washington County, Texas Burton is a town in Washington County, Texas, United States. The population was 359 at the 2000 census, and 375 in 2009.-Geography:Burton is located at ....	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The earliest known survivor of an integrated cotton ginning system widely used in the southern United States.
174	1994	Crown Cork and Soda Filling Machine Crown Cork The crown cork , the first form of bottle cap, was invented by William Painter in 1891 in Baltimore. The company making it was originally called the Bottle Seal Company, but it changed its name with the almost immediate success of the crown cork to the Crown Cork and Seal Company...		1892	Baltimore Baltimore Baltimore is the largest independent city in the United States and the largest city and cultural center of the US state of Maryland. The city is located in central Maryland along the tidal portion of the Patapsco River, an arm of the Chesapeake Bay. Baltimore is sometimes referred to as Baltimore...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of two surviving automated machines that founded the bottling industry.
175	1994	Bergen County Steam Collection Bergen County Technical Schools Bergen County Technical Schools is a county vocational school district that serves as the vocational / technical education arm of all the school districts within the 70 municipalities in Bergen County, New Jersey. The primary programs offered are the Bergen County Academies and Bergen County...		1987	Hackensack Hackensack, New Jersey Hackensack is a city in Bergen County, New Jersey, United States and the county seat of Bergen County. Although informally called Hackensack, it was officially named New Barbadoes Township until 1921. As of the 2010 United States Census, the city population was 43,010....	New Jersey New Jersey New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A collection of operational steam engines and auxiliary equipment from the 19th century to the 1940s.
176	1994	Union Pacific Big Boy 4023 and Centennial 690 Kenefick Park Kenefick Park is located at 100 Bancroft Street in South Omaha, Nebraska. Located next to the Lauritzen Gardens, Omaha's botanical gardens, the park features "two of the greatest locomotives ever to power Union Pacific Railroad."-About:...		1941	Omaha Omaha, Nebraska Omaha is the largest city in the state of Nebraska, United States, and is the county seat of Douglas County. It is located in the Midwestern United States on the Missouri River, about 20 miles north of the mouth of the Platte River...	Nebraska Nebraska Nebraska is a state on the Great Plains of the Midwestern United States. The state's capital is Lincoln and its largest city is Omaha, on the Missouri River....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Two heavy-tonnage locomotives incorporating the best features of the day.
177	1994	Barker Turbine/Hacienda Buena Vista Hacienda Buena Vista Hacienda Buena Vista, also known as Hacienda Vives , is a coffee plantation and estate in Ponce, Puerto Rico, established in the 19th century. The plantation was started by Don Salvador de Vives in 1833. It is now owned by the Puerto Rico Conservation Trust , who operates it as a museum...		1853	Ponce Ponce, Puerto Rico Ponce is both a city and a municipality in the southern part of Puerto Rico. The city is the seat of the municipal government.The city of Ponce, the fourth most populated in Puerto Rico, and the most populated outside of the San Juan metropolitan area, is named for Juan Ponce de León y Loayza, the...	Puerto Rico Puerto Rico Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The only known example of a Barker hydraulic turbine, the earliest practical reaction type.
178	1994	Boeing 367-80 Boeing 367-80 The Boeing 367-80, or "Dash 80" as it was called within Boeing, is an American prototype jet transport built to demonstrate the advantages of jet aircraft for passenger transport over piston-engine airliners....		1954	Fairfax County Fairfax County, Virginia Fairfax County is a county in Virginia, in the United States. Per the 2010 Census, the population of the county is 1,081,726, making it the most populous jurisdiction in the Commonwealth of Virginia, with 13.5% of Virginia's population...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Prototype of the Boeing 707 and most jet transport systems, establishing economic feasibility of commercial air travel. Located at Steven F. Udvar-Hazy Center Steven F. Udvar-Hazy Center The Steven F. Udvar-Hazy Center is the Smithsonian National Air and Space Museum 's annex at Washington Dulles International Airport in the Chantilly area of Fairfax County, Virginia, United States.... .
179	1994	Newell Shredder Newell Recycling, LLC Newell Recycling, LLC is a large, woman owned, Georgia-based processor of ferrous and non-ferrous scrap metals. The company uses both certified scales and independent scales upon client request...		1969	San Antonio	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The second and earliest surviving automobile shredder for recycling scrap metal.
180	1994	Johnstown Incline Johnstown Inclined Plane The Johnstown Inclined Plane is a funicular in Johnstown, Cambria County in the U.S. state of Pennsylvania. The incline and its two stations connect the city of Johnstown, situated in a valley at the confluence of the Stonycreek and the Little Conemaugh Rivers, to the borough of Westmont on Yoder...		1891	Johnstown Johnstown, Pennsylvania Johnstown is a city in Cambria County, Pennsylvania, United States, west-southwest of Altoona, Pennsylvania and east of Pittsburgh. The population was 20,978 at the 2010 census. It is the principal city of the Johnstown, Pennsylvania, Metropolitan Statistical Area, which includes Cambria County...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the world's steepest vehicular inclines, typical of several built in 19th century in Western Pennsylvania.
181	1994	BF Clyde's Cider Mill		1898	Mystic Mystic, Connecticut Mystic is a village and census-designated place in New London County, Connecticut, in the United States. The population was 4,001 at the 2000 census. A historic locality, Mystic has no independent government because it is not a legally recognized municipality in the state of Connecticut...	Connecticut Connecticut Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest steam powdered cider mill in the US. A rare survivor of a once-commonplace rural US industry.
182	1995	Knight Foundry and Machine Shop Knight Foundry Knight Foundry, also known as Knight's Foundry and Shops, is a cast iron foundry and machine shop in Sutter Creek, California. It was established in 1873 to supply heavy equipment and repair facilities to the gold mines and timber industry of the Mother Lode. Samuel N. Knight developed a high...		1873	Sutter Creek Sutter Creek, California Sutter Creek is a city in Amador County, California, United States. The population was 2,501 at the 2010 census, up from 2,303 at the 2000 census...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the earliest US water-powered foundry-machine shops, including Knight impulse turbines.
183	1995	Wright Field 5-foot Wind Tunnel Wright-Patterson Air Force Base Wright-Patterson Air Force Base is a United States Air Force base in Greene and Montgomery counties in the state of Ohio. It includes both Wright and Patterson Fields, which were originally Wilbur Wright Field and Fairfield Aviation General Supply Depot. Patterson Field is located approximately...		1921	Wright-Patterson Air Force Base Wright-Patterson Air Force Base Wright-Patterson Air Force Base is a United States Air Force base in Greene and Montgomery counties in the state of Ohio. It includes both Wright and Patterson Fields, which were originally Wilbur Wright Field and Fairfield Aviation General Supply Depot. Patterson Field is located approximately...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Early example of the "modern" wind tunnel for aircraft-model testing.
184	1995	Gravimetric Coal Feeder		1957	Cleveland	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The earliest known coal feeder, representing innovations that influenced nearly all industries using coal-fired boilers.
185	1995	Ljungstrom Air Preheater		1920	Stockholm Stockholm Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia. Stockholm is the most populous city in Sweden, with a population of 851,155 in the municipality , 1.37 million in the urban area , and around 2.1 million in the metropolitan area...	Stockholm County Stockholm County Stockholm County is a county or län on the Baltic sea coast of Sweden. It borders Uppsala County and Södermanland County. It also borders Mälaren and the Baltic Sea. The city of Stockholm is the capital of Sweden. Stockholm County is divided by the historic provinces of Uppland and Södermanland...	Sweden Sweden Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....	Experimental model of the industrial air preheater, now used worldwide.
186	1995	Steamboat William G. Mather Steamship William G. Mather Maritime Museum The Steamship William G. Mather is a retired Great Lakes bulk freighter now restored as a museum ship in Cleveland, Ohio, one of four in the Great Lakes region...		1925	Cleveland	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Prototypical ore boat on the Great Lakes.
187	1996	NASA Ames Unitary Plan Wind Tunnel Unitary Plan Wind Tunnel The Unitary Plan Wind Tunnel, located at the NASA Ames Research Center in Moffett Federal Airfield, Mountain View, California, USA, was a research facility used extensively to design and test new generations of aircraft, both commercial and military, as well as NASA space vehicles, including the...		1956	Mountain View Mountain View, California -Downtown:Mountain View has a pedestrian-friendly downtown centered on Castro Street. The downtown area consists of the seven blocks of Castro Street from the Downtown Mountain View Station transit center in the north to the intersection with El Camino Real in the south...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	R&D facility for testing of supersonic aircraft and spacecraft.
188	1996	Garfield Thomas Water Tunnel		1949	State College State College, Pennsylvania State College is the largest borough in Centre County in the U.S. state of Pennsylvania. It is the principal city of the State College, Pennsylvania Metropolitan Statistical Area which encompasses all of Centre County. As of the 2010 census, the borough population was 42,034, and roughly double...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Unique experimental facility for hydrodynamic research and testing. Located at Pennsylvania State University Pennsylvania State University The Pennsylvania State University, commonly referred to as Penn State or PSU, is a public research university with campuses and facilities throughout the state of Pennsylvania, United States. Founded in 1855, the university has a threefold mission of teaching, research, and public service...
189	1996	Montgomery Glider		1883	San Carlos San Carlos, California San Carlos is a city in San Mateo County, California, USA on the San Francisco Peninsula, about halfway between San Francisco and San Jose. It is an affluent small residential suburb located between Belmont to the north and Redwood City to the south. San Carlos' ZIP code is 94070, and it is within...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First heavier-than-air human-carrying aircraft to achieve controlled piloted flight. Located at Hiller Aviation Museum Hiller Aviation Museum The Hiller Aviation Museum, located in San Carlos, California, USA at the San Carlos Airport, is an aircraft history museum. The museum was founded by Stanley Hiller, Jr., in June 1998. and is endowed by members of the Hiller Family . It specializes in Northern California aircraft history and... .
190	1996	Hart Parr Tractor Charles Walter Hart Charles Walter Hart was born in Charles City, Floyd County, Iowa in 1872. His company, Hart-Parr Gasoline Engine Company, known as the "founders of the tractor industry", coined the word tractor....		1903	Charles City Charles City, Iowa Charles City is a city in Floyd County, Iowa, United States. The population was 7,652 at the 2010 census a decrease of 160, or 2%, from 7,812 at the 2000 census. It is the county seat of Floyd County. Charles City is a significant commercial and transportation center for the area, located on U.S...	Iowa Iowa Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest known internal-combustion-engined agricultural tractor in the United States.
191	1996	SS Badger Carferry		1952	Ludington Ludington, Michigan Ludington is a city in the U.S. state of Michigan. As of the 2000 census, the city population was 8,357. It is the county seat of Mason County.Ludington is a harbor town located on Lake Michigan at the mouth of the Pere Marquette River...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the last operating American steam lake boats with reciprocating engines and coal-fired boilers.
192	1996	Thermo King© C Refrigeration Unit Thermo King Corporation Thermo King Corporation, based in Bloomington, Minnesota and a unit of Ingersoll Rand Company Limited, is a manufacturer of transport temperature control systems for trucks, trailers, shipboard containers and railway cars as well as HVAC systems for bus, shuttle and passenger rail applications...		1940	Minneapolis	Minnesota Minnesota Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Earliest known refrigeration unit for trucks, having worldwide impact on food preservation.
193	1997	Alligator Amphibian		1940	Quantico Quantico, Virginia - Demographics :As of the census of 2000, there are 561 people, 295 households, and 107 families living in the town. The population density is . There are 359 housing units at an average density of .-Racial composition:...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Prototype of all tracked ship-to-shore landing vehicles. Located at the Marine Corps Air-Ground Museum Marine Corps Air-Ground Museum The Marine Corps Air-Ground Museum was located at Brown Field, Marine Corps Base Quantico, Quantico, Virginia. It housed a wide variety of historic Marine Corps vehicles/tanks , equipment, artillery pieces and aircraft to trace the evolution and significance of the Marine Air-Ground Team...
194	1997	Kew Bridge Cornish Beam Engines Kew Bridge Steam Museum Kew Bridge Steam Museum houses a museum of water supply and a collection of water pumping steam engines. The museum is an Anchor Point of ERIH, The European Route of Industrial Heritage...		1975	Brentford Brentford Brentford is a suburban town in west London, England, and part of the London Borough of Hounslow. It is located at the confluence of the River Thames and the River Brent, west-southwest of Charing Cross. Its former ceremonial county was Middlesex.-Toponymy:...	Greater London Greater London Greater London is the top-level administrative division of England covering London. It was created in 1965 and spans the City of London, including Middle Temple and Inner Temple, and the 32 London boroughs. This territory is coterminate with the London Government Office Region and the London...	United Kingdom United Kingdom The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...	Five notable 19th-century Cornish beam engines for municipal water supply.
195	1997	Bay Area Rapid Transit System		1972	San Francisco Bay Area San Francisco Bay Area The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The most advanced automated urban rail transit system incorporating many innovations, marking a new generation of rail travel.
196	1997	Bessemer Conversion Engine		ca. 1900	Rockford Rockford, Michigan Rockford is a city in Kent County in the U.S. state of Michigan. As of the 2010 census, the city population was 5,719. It is on the Rogue River and is only a few miles north of Grand Rapids.- History :...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An early example of the successful conversion of steam engines to internal-combustion engines.
197	1998	David Taylor Model Basin David Taylor Model Basin The David Taylor Model Basin is one of the largest ship model basins — test facilities for the development of ship design — in the world...		1939	Bethesda Bethesda, Maryland Bethesda is a census designated place in southern Montgomery County, Maryland, United States, just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House , which in turn took its name from Jerusalem's Pool of Bethesda...	Maryland Maryland Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Among the world's largest test facilities for the development of ship design
198	1998	GE's Ultra High Pressure Apparatus for the Production of Diamonds		1954	Schenectady Schenectady, New York Schenectady is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2010 census, the city had a population of 66,135...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first apparatus to consistently produce industrial diamonds, demonstrating fundamentals of producing and containing very high pressures and becoming the basis for the industrial-diamond production that followed. Located at the Schenectady Museum Schenectady Museum The Schenectady Museum & Suits-Bueche Planetarium is a museum and planetarium located in Schenectady, New York. Its mission is "to inspire a sense of wonder about extraordinary scientific and technological developments: past, present, and future." The museum's Executive Director is Kerry Orlyk.... .
199	1998	Hulett Hulett The Hulett automatic ore unloader was invented by George Hulett of Ohio in the late 19th century; he received a patent for his invention in 1898. The first working machine was built the following year at Conneaut Harbor in Conneaut, Ohio...  Ore Unloaders		1912	Cleveland	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest and oldest surviving example of a highly efficient materials-handling machine unique to the Great Lakes that revolutionized ore handling and led to its rapid adoption throughout the lower-lake ore ports. In 2000, two of the four loaders have been demolished and scrapped, while the other two were dissambled.
200	1998	Paddle Steamer Uri		1901	Lucerne Lucerne Lucerne is a city in north-central Switzerland, in the German-speaking portion of that country. Lucerne is the capital of the Canton of Lucerne and the capital of the district of the same name. With a population of about 76,200 people, Lucerne is the most populous city in Central Switzerland, and...	Lucerne Lucerne Lucerne is a city in north-central Switzerland, in the German-speaking portion of that country. Lucerne is the capital of the Canton of Lucerne and the capital of the district of the same name. With a population of about 76,200 people, Lucerne is the most populous city in Central Switzerland, and...	Switzerland Switzerland Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....	The oldest operating vessel with a diagonal, compound steam engine, with disc valve gear.
201	1998	Cooper Steam Traction Engine Collection		1860–1883	Mount Vernon Mount Vernon, Ohio Mount Vernon is a city in Knox County, Ohio, United States. The population was 16,990 at the 2010 census. It is the county seat of Knox County. The city is named after Mount Vernon, the plantation owned by George Washington.-History:...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Engines from the collection are among the oldest surviving agricultural steam engines, from 1860 to 1883, showing the conversion to mechanized farming. Located at the Knox County Historical Society.
202	1998	William Tod Rolling-Mill Engine		1914	Youngstown Youngstown, Ohio Youngstown is a city in the U.S. state of Ohio and the county seat of Mahoning County; it also extends into Trumbull County. The municipality is situated on the Mahoning River, approximately southeast of Cleveland and northwest of Pittsburgh, Pennsylvania...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Representative of steam-powered rolling-mill-engine drives early in the transition to electric drive and typical of the largest work pieces produced by U.S. foundries and forges.
203	1998	Siegfried Marcus Car Siegfried Marcus Siegfried Samuel Marcus was a German-born Austrian inventor and automobile pioneer.Marcus was born in Malchin in Mecklenburg-Schwerin. He moved to Vienna, the capital of the Austrian Empire, in 1852....		ca. 1875	Vienna Vienna Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...		Austria Austria Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...	Direct predecessor of the modern automobile. Located at the Technical Museum, Vienna.
204	1999	Kinne Water Turbine Collection		1907–1937	Watertown	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest collection of American turbine development. Located at the Jefferson County Historical Society.
205	1999	Peterborough Hydraulic (Canal) Lift Lock Peterborough Lift Lock The Peterborough Lift Lock is a boat lift located on the Trent Canal in the city of Peterborough, Ontario, Canada, and is Lock 21 on the Trent-Severn Waterway....		1904	Peterborough Peterborough, Ontario Peterborough is a city on the Otonabee River in southern Ontario, Canada, 125 kilometres northeast of Toronto. The population of the City of Peterborough was 74,898 as of the 2006 census, while the census metropolitan area has a population of 121,428 as of a 2009 estimate. It presently ranks...	Ontario Ontario Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....	Canada Canada Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...	The world's highest operating hydraulic lift lock, operating on the balance principle.
206	1999	Merrill Wheel Balancing System Merrill Wheel-Balancing System The Merrill Wheel-Balancing System was the world's first electronic dynamic wheel-balancing system. It was invented in 1945 by Marcellus Merrill at the Merrill Engineering Laboratories, 2390 South Tejon Street, Englewood, Colorado, and is now recorded on the list of IEEE Milestones in electronic...		1945	Englewood Englewood, Colorado The city of Englewood is a Home Rule Municipality located in Arapahoe County, Colorado, United States. As of 2007, the city is estimated to have a total population of 32,532. Englewood is part of the Denver-Aurora Metropolitan Area. Englewood is located in the South Platte River Valley east of the...	Colorado Colorado Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Innovative method of wheel balancing (on the vehicle) adopted worldwide.
207	2000	Refrigeration Research Museum		1890–1960	Brighton Brighton, Michigan Brighton is a principal satellite city of Metro Detroit located in the southeast portion of Livingston County in the U.S. state of Michigan. As of the 2010 census, the city population was 7,444. Brighton forms part of the South Lyon-Howell-Brighton Urban Area...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A private collection that represents many of the advances in mechanical refrigeration for US residential and commercial use from the late 19th century up to 1960.
208	2000	Fairbanks-Morse Fairbanks-Morse Fairbanks Morse and Company was a manufacturing company in the late 19th and early 20th century. Originally a weighing scale manufacturer, it later diversified into pumps, engines, windmills, locomotives and industrial supplies until it was merged in 1958...  Y-VA Engine Diesel		1924	Lee County Lee County, Florida Lee County is a county located in the U.S. state of Florida. Located in southwest Florida, the principal cities in the county are Fort Myers and Cape Coral...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The earliest (perhaps only) existing example of early high-compression, cold-start, full-diesel engines developed in the United States for isolated or rural power generation machinery before widespread electrification was available.
209	2000	USS Albacore USS Albacore (AGSS-569) USS Albacore was a unique research submarine that pioneered the American version of the teardrop hull form of modern submarines. The revolutionary design was derived from extensive hydrodynamic and wind tunnel testing, with an emphasis on underwater speed and maneuverability...		1953	Portsmouth Portsmouth, New Hampshire Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the largest city but only the fourth-largest community in the county, with a population of 21,233 at the 2010 census...	New Hampshire New Hampshire New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An experimental submarine that pioneered the teardrop-shaped hull, high-strength steel, and many other test concepts affecting speed, depth changes, and underwater maneuvering.
210	2000	Link C-3 Flight Trainer Link Trainer The term Link Trainer, also known as the "Blue box" and "Pilot Trainer" is commonly used to refer to a series of flight simulators produced between the early 1930s and early 1950s by Ed Link, based on technology he pioneered in 1929 at his family's business in Binghamton, New York...		ca. 1935	Binghamton Binghamton, New York Binghamton is a city in the Southern Tier of New York in the United States. It is near the Pennsylvania border, in a bowl-shaped valley at the confluence of the Susquehanna and Chenango Rivers...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An early flight simulator representative of the first truly effective mechanical device used to simulate actual flight processes.
211	2000	Tokaido Shinkansen		1964	Tokyo Tokyo , ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...  to Shin-Ōsaka Shin-Osaka Station is a train station in Yodogawa-ku, Osaka, Japan. It is the western terminus of the Tōkaidō Shinkansen, and the eastern terminus of the Sanyō Shinkansen. The lines are physically joined, and many trains offer through service....		Japan Japan Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...	The world's first high-speed railway, which operated at about 210 km/h (130-160 mph).
212	2000	EIMCO Rocker Shovel Loader, Model 12B		1938	Park City Park City, Utah Park City is a town in Summit and Wasatch counties in the U.S. state of Utah. It is considered to be part of the Wasatch Back. The city is southeast of downtown Salt Lake City and from Salt Lake City's east edge of Sugar House along Interstate 80. The population was 7,558 at the 2010 census...	Utah Utah Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first successful mining device to replace human labor in removing the rubble from underground hard-rock blasting. Plaque located at Miners Plaza in historic Old Park City.
213	2000	George W. Woodruff School of Mechanical Engineering George W. Woodruff School of Mechanical Engineering The George W. Woodruff School of Mechanical Engineering is the oldest and second largest department in the College of Engineering at the Georgia Institute of Technology. The school offers degree programs in mechanical engineering and nuclear and radiological engineering that are accredited by ABET...		1888	Atlanta	Georgia Georgia (U.S. state) Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Leader in transforming mechanical engineering education from a shop-based, vocational program to a professional one built on rigorous academic and analytical methods.
214	2001	Colvin Run Mill Colvin Run Mill Colvin Run Mill is in Great Falls, Virginia. Built c. 1811, Colvin Run Mill is the solesurviving operational 19th-century water-powered mill in the Washington, D.C...		ca. 1810	Great Falls Great Falls, Virginia Great Falls is a census-designated place in Fairfax County, Virginia, United States. The population was 15,427 at the 2010 census.Although primarily a bedroom community for Washington, D.C., one major attraction is Great Falls Park which overlooks the Great Falls of the Potomac River, for which...	Virginia Virginia The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A good example of a typical early 19th-century (US) water-powered, Evans-type flour mill, restored into operating condition.
215	2001	Coolspring Power Museum		1890–1929	Coolspring	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	An impressive variety of internal combustion engines, built primarily between 1890 and 1920 and consisting mainly of stationary engines used in industrial applications.
216	2001	Arecibo Observatory Arecibo Observatory The Arecibo Observatory is a radio telescope near the city of Arecibo in Puerto Rico. It is operated by SRI International under cooperative agreement with the National Science Foundation...		1963	Arecibo Arecibo, Puerto Rico Arecibo is a municipality in the northern midwest coast of Puerto Rico and located by the Atlantic Ocean, north of Utuado and Ciales; east of Hatillo; and west of Barceloneta, and Florida. Arecibo is spread over 18 wards and Arecibo Pueblo...	Puerto Rico Puerto Rico Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest single-aperture telescope ever constructed. Joint designation with IEEE.
217	2001	Radio City Music Hall Hydraulically Actuated Stage Radio City Music Hall Radio City Music Hall is an entertainment venue located in New York City's Rockefeller Center. Its nickname is the Showplace of the Nation, and it was for a time the leading tourist destination in the city...		1932	New York New York City New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the largest movable stages in the world with innovative hydraulic equipment and controls, a forerunner of other stage designs as well as early aircraft carrier elevator systems.
218	2002	Apollo Lunar Module LM-13 Apollo Lunar Module The Apollo Lunar Module was the lander portion of the Apollo spacecraft built for the US Apollo program by Grumman to carry a crew of two from lunar orbit to the surface and back...		1972	Garden City Garden City, New York Garden City is a village in the town of Hempstead in central Nassau County, New York, in the United States. It was founded by multi-millionaire Alexander Turney Stewart in 1869, and is located on Long Island, to the east of New York City, from mid-town Manhattan, and just south of the town of...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First piloted vehicle designed to operate solely in the vacuum of space. Located at the Cradle of Aviation Museum Cradle of Aviation Museum The Cradle of Aviation Museum is an aerospace museum located in East Garden City, New York on Long Island to commemorate Long Island's part in the history of aviation. It is located on land once part of Mitchel Air Force Base which, together with nearby Roosevelt Field and other airfields on the... .
219	2002	Howard Hughes Flying Boat, HK-1 Hughes H-4 Hercules The Hughes H-4 Hercules is a prototype heavy transport aircraft designed and built by the Hughes Aircraft company. The aircraft made its only flight on November 2, 1947 and the project was never advanced beyond the single example produced...		1947	McMinnville McMinnville, Oregon McMinnville is the county seat and largest city of Yamhill County, Oregon, United States. According to Oregon Geographic Names, it was named by its founder, William T. Newby , an early immigrant on the Oregon Trail, for his hometown of McMinnville, Tennessee...	Oregon Oregon Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest wood-constructed and the largest wingspan airplane ever built. Located at the Evergreen Aviation & Space Museum.
220	2002	Pilatusbahn Pilatus Railway The Pilatus Railway or Pilatusbahn is a mountain railway in Switzerland and is the steepest rack railway in the world, with a maximum gradient of 48%. The line runs from Alpnachstad, on Lake Lucerne, to a terminus near the summit of Mount Pilatus at an altitude of...		1882	Mount Pilatus Pilatus (mountain) Pilatus is a mountain near Lucerne, Switzerland. Jurisdiction over the mountain is divided between the cantons of Obwalden, Nidwalden, and Lucerne...		Switzerland Switzerland Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....	The world's steepest cog railway.
221	2002	Brandywine River Powder Mills Eleutherian Mills From 1802 to 1921, Eleutherian Mills was a gunpowder mill site used for the manufacture of explosives by the Du Pont family business. The name also refers to the house on the hill above the mills, which was the first Du Pont family home in America. The business was founded by Eleuthère Irénée du Pont...		1803–1921	Wilmington Wilmington, Delaware Wilmington is the largest city in the state of Delaware, United States, and is located at the confluence of the Christina River and Brandywine Creek, near where the Christina flows into the Delaware River. It is the county seat of New Castle County and one of the major cities in the Delaware Valley...	Delaware Delaware Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. It is bordered to the south and west by Maryland, and to the north by Pennsylvania...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The largest U.S. maker of explosive black powder, a once-important and now-obsolete 19th-century technology.
222	2002	Ditch Witch® DWP Service-Line Trencher Ditch Witch Ditch Witch is an American brand of underground construction equipment built by The Charles Machine Works, Inc., which has been in operation under the current name since 1949...		1952	Perry Perry, Oklahoma Perry is a city in Noble County, Oklahoma, United States. As of the 2010 census, the city population was 5,126. It is the county seat of Noble County.-19th century:...	Oklahoma Oklahoma Oklahoma is a state located in the South Central region of the United States of America. With an estimated 3,751,351 residents as of the 2010 census and a land area of 68,667 square miles , Oklahoma is the 28th most populous and 20th-largest state...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first mechanized, compact service-line trencher.
223	2003	Solar Energy and Energy Conversion Laboratory		1954	Gainesville Gainesville, Florida Gainesville is the largest city in, and the county seat of, Alachua County, Florida, United States as well as the principal city of the Gainesville, Florida Metropolitan Statistical Area . The preliminary 2010 Census population count for Gainesville is 124,354. Gainesville is home to the sixth...	Florida Florida Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Pioneering developments in solar-energy applications, with global accomplishments in training and innovation.
224	2003	Wright Flyer III Wright Flyer III The Wright Flyer III was the third powered aircraft built by the Wright Brothers. Orville Wright made the first flight with it on June 23, 1905. The Flyer III had an airframe of spruce construction with a wing camber of 1-in-20 as used in 1903, rather than the less effective 1-in-25 used in 1904...		1905	Dayton Dayton, Ohio Dayton is the 6th largest city in the U.S. state of Ohio and the county seat of Montgomery County, the fifth most populous county in the state. The population was 141,527 at the 2010 census. The Dayton Metropolitan Statistical Area had a population of 841,502 in the 2010 census...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first practical airplane. Part of the Dayton Aviation Heritage National Historical Park Dayton Aviation Heritage National Historical Park thumb|left|200 px|The Wright Flyer III, now in Carillon Historical Park, shown being flown by Orville Wright on October 4, 1905, over [[Huffman Prairie]] near Dayton...
225	2003	Rumely Companies' Agricultural Products Advance-Rumely The Advance-Rumely Company of La Porte, Indiana was organized in 1915 as a producer of many types of agricultural machinery, most notably threshing machines and large tractors...		1853	La Porte	Indiana Indiana Indiana is a US state, admitted to the United States as the 19th on December 11, 1816. It is located in the Midwestern United States and Great Lakes Region. With 6,483,802 residents, the state is ranked 15th in population and 16th in population density. Indiana is ranked 38th in land area and is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Produced a line of agricultural equipment that played a vital role in the evolution of farming.
226	2003	Eddystone Station Unit #1		1960	Eddystone Eddystone, Pennsylvania Eddystone is a borough in Delaware County, Pennsylvania, United States. The population was 2,442 at the 2000 census.-Early history:The area at the mouth of Ridley Creek was first called "Tequirassy" by Native Americans. The land was owned by Olof Persson Stille, one of the early settlers from New...	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The second U.S. (earliest extant) supercritical steam-electric generating unit, pioneering significant increases in steam pressure, steam temperature, and unit size.
227	2003	First Ram-Type Blowout Preventer (BOP) Cameron ram-type blowout preventer The Cameron ram-type blowout preventer was the first successful blowout preventer for oil wells. It was developed by James S. Abercrombie and Harry S. Cameron in 1922. The device was issued on January 12, 1926...		1922	Houston	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First ram-type blowout preventer, which sealed the wellhead and controlled pressure during drilling and oil production operations.
228	2003	Philo 6 Steam-Electric Generating Unit		1957	Columbus Columbus, Ohio Columbus is the capital of and the largest city in the U.S. state of Ohio. The broader metropolitan area encompasses several counties and is the third largest in Ohio behind those of Cleveland and Cincinnati. Columbus is the third largest city in the American Midwest, and the fifteenth largest city...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world's first commercial supercritical steam-electric generating unit.
229	2003	Great Northern 2313 — Montana Western 31 Gas		1925	North Freedom North Freedom, Wisconsin North Freedom is a village in Sauk County, Wisconsin, United States, along the Baraboo River. The population was 649 at the 2000 census.-Geography:North Freedom is located at ....	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest-surviving Electro-motive Company (EMC) gas-electric rail motorcar and the oldest with Lemp control. Located at the Mid-Continent Railway Museum Mid-Continent Railway Museum The Mid-Continent Railway Museum is a railroad museum in North Freedom, Wisconsin.-Collection:Three steam locomotives are currently under restoration to federal guidelines. The museum has 14 steam and 6 diesel locomotives including Chicago & North Western # 1385 and over 100 other pieces of...
230	2004	Lapeyre Automatic Shrimp Peeling Machine		1949	Biloxi Biloxi, Mississippi Biloxi is a city in Harrison County, Mississippi, in the United States. The 2010 census recorded the population as 44,054. Along with Gulfport, Biloxi is a county seat of Harrison County....	Mississippi Mississippi Mississippi is a U.S. state located in the Southern United States. Jackson is the state capital and largest city. The name of the state derives from the Mississippi River, which flows along its western boundary, whose name comes from the Ojibwe word misi-ziibi...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	For decades, this elegantly simple solution – known as the Model A Automatic Shrimp Peeler – has proven to be the most effective and widely used method of automatic shrimp peeling, despite attempts by others to develop alternative approaches.
231	2004	R.G. Letourneau Mountain Mover R. G. LeTourneau Robert Gilmour LeTourneau , born in Richford, Vermont, was a prolific inventor of earthmoving machinery. His machines represented nearly 70 percent of the earthmoving equipment and Engineering vehicles used during World War II, and he was responsible for nearly 300 patents...		1922	Longview Longview, Texas Longview is a city in Gregg and Harrison Counties in the U.S. state of Texas. As of the 2010 Census, the population was 80,455. Most of the city is located in Gregg County, of which it is the county seat; only a small part extends into the western part of neighboring Harrison County. It is...	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	This innovative scraper moved four times as much earth as conventional machines of the era which required a tractor and two operators.
232	2004	Reuleaux Collection Of Kinematic Mechanisms Franz Reuleaux Franz Reuleaux , was a mechanical engineer and a lecturer of the Berlin Royal Technical Academy, later appointed as the President of the Academy. He was often called the father of kinematics...		1882	Ithaca Ithaca, New York The city of Ithaca, is a city in upstate New York and the county seat of Tompkins County, as well as the largest community in the Ithaca-Tompkins County metropolitan area...	New York New York New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The world’s largest collection of 19th-century kinematic mechanisms. Located at Cornell University Cornell University Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...
233	2005	Model T Ford Model T The Ford Model T is an automobile that was produced by Henry Ford's Ford Motor Company from September 1908 to May 1927...		1908–1927	Dearborn Dearborn, Michigan -Economy:Ford Motor Company has its world headquarters in Dearborn. In addition its Dearborn campus contains many research, testing, finance and some production facilities. Ford Land controls the numerous properties owned by Ford including sales and leasing to unrelated businesses such as the...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	15 millionth Model T to come off the assembly line, marking the end of its production. Located at The Henry Ford The Henry Ford The Henry Ford, a National Historic Landmark, , in the Metro Detroit suburb of Dearborn, Michigan, USA, is a large indoor and outdoor history museum complex... .
234	2005	The United States Standard Screw Threads United States Standard thread United States Standard thread , also known as Sellers Standard thread, Franklin Institute thread and American Standard thread, is a standard for inch based threaded fasteners and washers....		1864	Philadelphia	Pennsylvania Pennsylvania The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first US system of standardized screw threads.
235	2005	Ottmar Mergenthaler's Square Base Linotype Machine Ottmar Mergenthaler Ottmar Mergenthaler was an inventor who has been called a second Gutenberg because of his invention of the Linotype machine, the first device that could easily and quickly set complete lines of type for use in printing presses...		1886	Carson Carson, California Carson is a city in Los Angeles County, California. As of the 2010 census, Carson had a total population of 91,714. Located south of downtown Los Angeles and approximately 14 miles away from the Los Angeles International Airport, it is known as a suburb of the city....	California California California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of two surviving square-base linotypes. Located at the International Printing Museum
236	2005	Birome Ballpoint Pen Collection László Bíró László József Bíró was the inventor of the modern ballpoint pen.Bíró was born in Budapest, Hungary in 1899. He presented the first production of the ball pen at the Budapest International Fair in 1931...		1938–1948	Buenos Aires Buenos Aires Buenos Aires is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after São Paulo. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the South American continent...		Argentina Argentina Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...	First ballpoint pens; utilized the concept of a quick-drying ink whose flow is controlled by gravity and a metal ball housed in a socket.
237	2005	Eiffel Drop Test Machine and Wind Tunnel		1903 & 1912	Paris Paris Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...		France France The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...	Most accurate to date drop-test device and wind tunnel to measure drag on falling objects of various shapes.
238	2006	Grumman Wildcat “Sto-Wing” Wing-folding Mechanism			Kalamazoo Kalamazoo, Michigan The area on which the modern city stands was once home to Native Americans of the Hopewell culture, who migrated into the area sometime before the first millennium. Evidence of their early residency remains in the form of a small mound in downtown's Bronson Park. The Hopewell civilization began to...	Michigan Michigan Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	First functional wing-folding mechanism, enabling aircraft to take up less space on ships. Located at Air Zoo Air Zoo The Air Zoo, founded as the Kalamazoo Aviation History Museum, is an aviation museum and indoor amusement park adjacent to the Kalamazoo-Battle Creek International Airport in Portage, Michigan.... .
239	2006	Hughes Glomar Explorer		1972	Houston	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	A deep-sea drillship platform initially built for the United States Central Intelligence Agency Special Activities Division secret operation Project Azorian to recover the sunken Soviet submarine, K-129, lost in April 1968.
240	2006	Cooper-Bessemer Type GMV Integral-Angle Gas E		1944	Mount Vernon Mount Vernon, Ohio Mount Vernon is a city in Knox County, Ohio, United States. The population was 16,990 at the 2010 census. It is the county seat of Knox County. The city is named after Mount Vernon, the plantation owned by George Washington.-History:...	Ohio Ohio Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Providing efficient compression energy for natural gas, petrochemical, refinery, and power industries around the world. Located at the Knox County Historical Museum.
241	2006	Noria al-Muhammadiyya Norias of Hama The Norias of Hama are a number of norias along the Orontes River in the city of Hama, Syria. Only seventeen of the original norias remain. They are mostly unused now and serve an aesthetic purpose...		1361	Hama Hama Hama is a city on the banks of the Orontes River in west-central Syria north of Damascus. It is the provincial capital of the Hama Governorate. Hama is the fourth-largest city in Syria—behind Aleppo, Damascus, and Homs—with a population of 696,863...	Hama Governorate Hama Governorate Hama is one of the fourteen governorates of Syria. It is situated in western-central Syria. Its area depends of sources. It varies from 8,844 km² to 8,883 km². Governorate has a population of 1,593,000...	Syria Syria Syria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....	A set of seventeen large water wheels operating on the River Orontes as they have for many centuries.
242	2006	Split-Hopkinson Pressure Bar Apparatus (1962) Split-Hopkinson pressure bar The Split-Hopkinson pressure bar, named after Bertram Hopkinson, sometimes also called a Kolsky bar, is an apparatus for testing the dynamic stress-strain response of materials.-History:...		1962	San Antonio	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first apparatus able to directly generate a complete dynamic (high-rate) stress-strain curve in a single experiment.
243	2008	Digital Micromirror Device Digital micromirror device A digital micromirror device, or DMD, is an optical semiconductor that is the core of DLP projection technology, and was invented by Dr. Larry Hornbeck and Dr. William E. "Ed" Nelson of Texas Instruments in 1987....		1996	Plano Plano, Texas Plano is a city in the state of Texas, located mostly within Collin County. The city's population was 259,841 at the 2010 census, making it the ninth-largest city in Texas and the 71st most populous city in the United States. Plano is located within the metropolitan area commonly referred to as...	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Modulating digital light pulses using up to 2 million micromirrors.
244	2008	Johnson Controls Johnson Controls Johnson Controls, Inc. is a company, based in Milwaukee, Wisconsin, USA. It was founded in 1885 by professor Warren S. Johnson, inventor of the first electric room thermostat....  Multi-Zone Automatic Temperature Control System		1895	Milwaukee	Wisconsin Wisconsin Wisconsin is a U.S. state located in the north-central United States and is part of the Midwest. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. Wisconsin's capital is...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The first automated temperature control system.
245	2008	John Penn & Sons Oscillating Steam Engine John Penn (engineer) John Penn FRS, was a marine engineer, whose firm was pre-eminent in the middle of the nineteenth century due to his innovations in engine and propeller systems, which led his firm to be the major supplier to the Royal Navy as it made the transition from sail to steam power...		1841	Dresden Dresden Dresden is the capital city of the Free State of Saxony in Germany. It is situated in a valley on the River Elbe, near the Czech border. The Dresden conurbation is part of the Saxon Triangle metropolitan area....	Saxony Saxony The Free State of Saxony is a landlocked state of Germany, contingent with Brandenburg, Saxony Anhalt, Thuringia, Bavaria, the Czech Republic and Poland. It is the tenth-largest German state in area, with of Germany's sixteen states....	Germany Germany Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...	The first steam engine to utilize oscillatory cylinders. In the steamboat Diesbar.
246	2009	Hughes Two-Cone Drill Bit		1909	The Woodlands The Woodlands, Texas The Woodlands is a master-planned community and a Census-designated place in the U.S. state of Texas within the metropolitan area. The population of the CDP was 55,649 at the 2000 census—a 90 percent increase over its 1990 population. According to the 2010 census, The Woodlands' population rose...	Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	Key technology that allowed drilling through medium and hard rock, tapped vast oil reservoirs much deeper below the surface than previously possible, and significantly improved the efficiency and cost of drilling.
247	2010	Belle of Louisville Belle of Louisville The Belle of Louisville is a steamboat owned and operated by the city of Louisville, Kentucky and moored at its downtown wharf next to the Riverfront Plaza/Belvedere during its annual operational period...		1914	Louisville Louisville, Kentucky Louisville is the largest city in the U.S. state of Kentucky, and the county seat of Jefferson County. Since 2003, the city's borders have been coterminous with those of the county because of a city-county merger. The city's population at the 2010 census was 741,096...	Kentucky Kentucky The Commonwealth of Kentucky is a state located in the East Central United States of America. As classified by the United States Census Bureau, Kentucky is a Southern state, more specifically in the East South Central region. Kentucky is one of four U.S. states constituted as a commonwealth...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	The oldest operating “western rivers” steamboat.
248	2011	Southern Railway Spencer Shops Southern Railway's Spencer Shops Southern Railway's Spencer Shops were a major steam locomotive repair facility between Atlanta and Washington, D.C. in Spencer, North Carolina. The service facility was once Southern Railway's largest steam locomotive repair center...		1896	Spencer Spencer, North Carolina Spencer is a town in Rowan County, North Carolina, United States, incorporated in 1905. As of the 2000 census, the town population was 3,355.-History:...	North Carolina North Carolina North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...	United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...	One of the few remaining intact 20th-century railroad locomotive facilities in the United States. Now the North Carolina Transportation Museum North Carolina Transportation Museum The North Carolina Transportation Museum is a transport museum in Spencer, North Carolina.The museum is largely devoted to the state's railroad history, however its collection also includes exhibits of automobiles and aircraft.... .

See also

• List of historic civil engineering landmarks
• Institution of Mechanical Engineers
  Institution of Mechanical Engineers
  The Institution of Mechanical Engineers is the British engineering society based in central London, representing mechanical engineering. It is licensed by the Engineering Council UK to assess candidates for inclusion on ECUK's Register of professional Engineers...
  
  
• Mechanical Engineering Heritage (Japan)
  Mechanical Engineering Heritage (Japan)
  The is a list of sites, landmarks, machines, and documents that made significant contributions to the development of mechanical engineering in Japan. Items in the list are certified by the .- Overview :...