1868 in science
Encyclopedia
The year 1868 in science
and technology
involved some significant events, listed below.
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...
and technology
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...
involved some significant events, listed below.
Biology
- Jules-Emile Planchon and colleagues propose PhylloxeraPhylloxeraGrape phylloxera ; originally described in France as Phylloxera vastatrix; equated to the previously described Daktulosphaira vitifoliae, Phylloxera vitifoliae; commonly just called phylloxera is a pest of commercial grapevines worldwide, originally native to eastern North America...
as the cause of the Great French Wine BlightGreat French Wine BlightThe Great French Wine Blight was a severe blight of the mid-19th century that destroyed many of the vineyards in France and laid to waste the wine industry...
. - Roland TrimenRoland TrimenRoland Trimen FRS was a British-South African entomologist, best-known for South African Butterflies , a collaborative work with Colonel James Henry Bowker....
reads a paper to the Linnaean Society explaining Batesian mimicryBatesian mimicryBatesian mimicry is a form of mimicry typified by a situation where a harmless species has evolved to imitate the warning signals of a harmful species directed at a common predator...
in AfricaAfricaAfrica is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
n butterfliesButterflyA butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...
. - T. H. Huxley discovers what he thinks is primordial matter and names it Bathybius haeckelii. He admits his mistake in 1871.
Chemistry
- August 18 - The element later named as heliumHeliumHelium is the chemical element with atomic number 2 and an atomic weight of 4.002602, which is represented by the symbol He. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table...
is first detected in the spectrumEmission spectrumThe emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted by the element's atoms or the compound's molecules when they are returned to a lower energy state....
of the SunSunThe Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...
's chromosphereChromosphereThe chromosphere is a thin layer of the Sun's atmosphere just above the photosphere, roughly 2,000 kilometers deep....
by FrenchFrench peopleThe French are a nation that share a common French culture and speak the French language as a mother tongue. Historically, the French population are descended from peoples of Celtic, Latin and Germanic origin, and are today a mixture of several ethnic groups...
astronomerAstronomerAn astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
Jules Janssen during a total eclipseSolar eclipseAs seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...
in GunturGunturGuntur , is a city and a municipal corporation in the Indian state of Andhra Pradesh, located to the north and west of the Bay of Bengal. It is approximately to the south of the national capital, New Delhi and south east of state capital, Hyderabad. Guntur is the fourth largest city in Andhra...
, IndiaBritish RajBritish Raj was the British rule in the Indian subcontinent between 1858 and 1947; The term can also refer to the period of dominion...
, but assumed to be sodiumSodiumSodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal and is a member of the alkali metals; its only stable isotope is 23Na. It is an abundant element that exists in numerous minerals, most commonly as sodium chloride...
. - October 20 - EnglishEnglish peopleThe English are a nation and ethnic group native to England, who speak English. The English identity is of early mediaeval origin, when they were known in Old English as the Anglecynn. England is now a country of the United Kingdom, and the majority of English people in England are British Citizens...
astronomer Norman Lockyer observes and names the D3 Fraunhofer line in the solar spectrum and concludes that it is caused by a hitherto unidentified elementChemical elementA chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar examples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead.As of November 2011, 118 elements...
which he later names heliumHeliumHelium is the chemical element with atomic number 2 and an atomic weight of 4.002602, which is represented by the symbol He. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table...
. - Louis Arthur Ducos du Hauron patentPatentA patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....
s methods of color photographyColor photographyColor photography is photography that uses media capable of representing colors, which are traditionally produced chemically during the photographic processing phase...
.
Medicine
- Jean-Martin CharcotJean-Martin CharcotJean-Martin Charcot was a French neurologist and professor of anatomical pathology. He is known as "the founder of modern neurology" and is "associated with at least 15 medical eponyms", including Charcot-Marie-Tooth disease and amyotrophic lateral sclerosis...
describes and names multiple sclerosisMultiple sclerosisMultiple sclerosis is an inflammatory disease in which the fatty myelin sheaths around the axons of the brain and spinal cord are damaged, leading to demyelination and scarring as well as a broad spectrum of signs and symptoms...
. - Adolph KussmaulAdolph KussmaulAdolph Kussmaul was a German physician and a leading clinician of his time. He was born as the son and grandson of physicians at Graben near Karlsruhe and studied at Heidelberg. He entered the army after graduation and spent two years as an army surgeon...
performs the first esophagogastroduodenoscopyEsophagogastroduodenoscopyFor other expansions of the initialism "OGD", see the disambiguation page.In medicine , esophagogastroduodenoscopy is a diagnostic endoscopic procedure that visualizes the upper part of the gastrointestinal tract up to the duodenum...
on a living human.
Paleontology
- March - French geologistGeologistA geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes and history that has shaped it. Geologists usually engage in studying geology. Geologists, studying more of an applied science than a theoretical one, must approach Geology using...
Louis LartetLouis LartetLouis Lartet was a French geologist and paleontologist. He discovered the original Cro-Magnon skeletons.Louis Lartet was born in Castelnau-Magnoac, in Seissan in the département of Gers...
discovers the first identified skeletons of Cro-MagnonCro-MagnonThe Cro-Magnon were the first early modern humans of the European Upper Paleolithic. The earliest known remains of Cro-Magnon-like humans are radiometrically dated to 35,000 years before present....
, the first anatomically modern humansAnatomically modern humansThe term anatomically modern humans in paleoanthropology refers to early individuals of Homo sapiens with an appearance consistent with the range of phenotypes in modern humans....
(early Homo sapiens sapiens), at Abri de Crô-Magnon, a rock shelter at Les Eyzies, DordogneDordogneDordogne is a départment in south-west France. The départment is located in the region of Aquitaine, between the Loire valley and the High Pyrénées named after the great river Dordogne that runs through it...
, France.
Awards
- Copley MedalCopley MedalThe Copley Medal is an award given by the Royal Society of London for "outstanding achievements in research in any branch of science, and alternates between the physical sciences and the biological sciences"...
: Charles WheatstoneCharles WheatstoneSir Charles Wheatstone FRS , was an English scientist and inventor of many scientific breakthroughs of the Victorian era, including the English concertina, the stereoscope , and the Playfair cipher... - Wollaston MedalWollaston MedalThe Wollaston Medal is a scientific award for geology, the highest award granted by the Geological Society of London.The medal is named after William Hyde Wollaston, and was first awarded in 1831...
for Geology: Carl Friedrich Naumann
Births
- April 14 - Annie RussellAnnie Scott Dill MaunderAnnie Scott Dill Maunder, née Russell was an Irish astronomer and mathematician.She was born in Strabane, County Tyrone, Ireland to William Andrew Russell and Hessy Nesbitt Dill. Her father was the minister of the Presbyterian Church in Strabane until 1882.Annie received her secondary education at...
(d. 19471947 in scienceThe year 1947 in science and technology involved some significant events, listed below.-Anthropology:* August 7 - Thor Heyerdahl's balsa-wood raft, the Kon-Tiki, smashes into the reef at Raroia in the Tuamotu Islands after a 101-day, 4300-mile journey across the Pacific Ocean, demonstrating that...
), astronomerAstronomerAn astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
. - June 6 - Robert Falcon ScottRobert Falcon ScottCaptain Robert Falcon Scott, CVO was a Royal Navy officer and explorer who led two expeditions to the Antarctic regions: the Discovery Expedition, 1901–04, and the ill-fated Terra Nova Expedition, 1910–13...
(d. 19121912 in scienceThe year 1912 in science and technology involved some significant events, listed below.-Biology:* July 23 - Horace Donisthorpe first discovers Anergates atratulus in the New Forest, England.-Chemistry:...
), explorer. - June 14 - Karl LandsteinerKarl LandsteinerKarl Landsteiner , was an Austrian-born American biologist and physician of Jewish origin. He is noted for having first distinguished the main blood groups in 1900, having developed the modern system of classification of blood groups from his identification of the presence of agglutinins in the...
(d. 19431943 in scienceThe year 1943 in science and technology involved some significant events, listed below.-Biology:* July 21 - Living specimens of Metasequoia glyptostroboides, the Dawn Redwood, previously known only as a Mesozoic fossil, are located in China....
), physiologist. - October 23 - Frederick W. Lanchester (d. 19461946 in scienceThe year 1946 in science and technology involved some significant events, listed below.-Biology:* November 10 - Peter Scott opens the Slimbridge Wetland Reserve in England.* Karl von Frisch publishes "Die Tänze der Bienen" ....
), automotive engineerAutomotive engineeringModern automotive engineering, along with aerospace engineering and marine engineering, is a branch of vehicle engineering, incorporating elements of mechanical, electrical, electronic, software and safety engineering as applied to the design, manufacture and operation of motorcycles, automobiles,...
. - November 8 - Felix HausdorffFelix HausdorffFelix Hausdorff was a Jewish German mathematician who is considered to be one of the founders of modern topology and who contributed significantly to set theory, descriptive set theory, measure theory, function theory, and functional analysis.-Life:Hausdorff studied at the University of Leipzig,...
(d. 19421942 in scienceThe year 1942 in science and technology involved some significant events, listed below.-Astronomy:* February 27 - James Stanley Hey, a British Army research officer, first detects radio waves emitted by the sun, helping to pioneer radio astronomy....
), mathematicianMathematicianA mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
. - December 9 - Fritz HaberFritz HaberFritz Haber was a German chemist, who received the Nobel Prize in Chemistry in 1918 for his development for synthesizing ammonia, important for fertilizers and explosives. Haber, along with Max Born, proposed the Born–Haber cycle as a method for evaluating the lattice energy of an ionic solid...
(d. 19341934 in scienceThe year 1934 in science and technology involved some significant events, listed below.-Astronomy:* Richard Tolman shows that black-body radiation in an expanding universe cools but remains thermal....
), chemistChemistA chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...
.
Deaths
- February 11 - Léon FoucaultLéon FoucaultJean Bernard Léon Foucault was a French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation...
(b. 18191819 in scienceThe year 1819 in science and technology involved some significant events, listed below.-Exploration:* A British Arctic expedition under William Edward Parry comprising HMS Hecla and HMS Griper reaches longitude 112°51' W in the Northwest Passage, the furthest west which will be attained by any...
), physicistPhysicistA physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
. - February 24 - John HerapathJohn HerapathJohn Herapath was an English physicist who gave a partial account of the kinetic theory of gases in 1820 though it was neglected by the scientific community at the time....
(b. 17901790 in scienceThe year 1790 in science and technology involved some significant events.-Astronomy:* Armagh Observatory founded by Richard Robinson, 1st Baron Rokeby, Archbishop of Armagh.-Biology:...
), physicist. - May 22 - Julius PlückerJulius PlückerJulius Plücker was a German mathematician and physicist. He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron. He also vastly extended the study of Lamé curves.- Early...
(b. 18011801 in scienceThe year 1801 in science and technology involved some significant events, listed below.-Astronomy:* January 1 - Italian astronomer Giuseppe Piazzi makes the first discovery of an asteroid, Ceres, which is briefly considered to be the eighth planet....
), mathematicianMathematicianA mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
and physicistPhysicistA physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
. - June 25 - Alexander MitchellAlexander Mitchell (engineer)Alexander Mitchell, was an Irish engineer who from 1802 was blind. He is known as the inventor of the screw-pile lighthouse...
(b. 17801780 in scienceThe year 1780 in science and technology involved some significant events.-Health:* Clément-Joseph Tissot publishes Gymnastique médicinale et chirurgicale, ou, essai sur l'utilité du mouvement, ou des différens exercices du corps, et du repos dans la cure des malades in Paris, the first text on the...
), engineer and inventor of the screw-pile lighthouseScrew-pile lighthouseA screw-pile lighthouse is a lighthouse which stands on piles that are screwed into sandy or muddy sea or river bottoms. The first screw-pile lighthouse was built by blind Irish engineer Alexander Mitchell...
. - September 26 - August Ferdinand MöbiusAugust Ferdinand MöbiusAugust Ferdinand Möbius was a German mathematician and theoretical astronomer.He is best known for his discovery of the Möbius strip, a non-orientable two-dimensional surface with only one side when embedded in three-dimensional Euclidean space. It was independently discovered by Johann Benedict...
(b. 1790), mathematician.