1918 in science
Encyclopedia
The year 1918 in science
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.

Astronomy

  • Kiyotsugu Hirayama
    Kiyotsugu Hirayama
    was a Japanese astronomer, best known for his discovery that many asteroid orbits were more similar to one another than chance would allow, leading to the concept of asteroid families, now called "Hirayama families" in his honour....

     identifies several groups of main belt asteroids, now known as Hirayama families
    Hirayama families
    A Hirayama family of asteroids is a group of minor planets that share similar orbital elements, such as semimajor axis, eccentricity, and orbital inclination...

    .
  • Harlow Shapley
    Harlow Shapley
    Harlow Shapley was an American astronomer.-Career:He was born on a farm in Nashville, Missouri, and dropped out of school with only the equivalent of a fifth-grade education...

     demonstrates that globular cluster
    Globular cluster
    A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. The name of this category of star cluster is...

    s are arranged in a spheroid or halo whose center is not the Earth, but the center of the galaxy
    Galaxy
    A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The word galaxy is derived from the Greek galaxias , literally "milky", a...

    .
  • Max Wolf
    Max Wolf
    Maximilian Franz Joseph Cornelius Wolf was a German astronomer and a pioneer in the field of astrophotography...

     discovers the star
    Star
    A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

     Wolf 359.
  • Heber Curtis discovers a relativistic jet
    Relativistic jet
    Relativistic jets are extremely powerful jets of plasma which emerge from presumed massive objects at the centers of some active galaxies, notably radio galaxies and quasars. Their lengths can reach several thousand or even hundreds of thousands of light years...

     of matter emerging from Elliptical Galaxy M87.

Biology

  • R.A. Fisher
    Ronald Fisher
    Sir Ronald Aylmer Fisher FRS was an English statistician, evolutionary biologist, eugenicist and geneticist. Among other things, Fisher is well known for his contributions to statistics by creating Fisher's exact test and Fisher's equation...

     puts forward a genetic
    Genetics
    Genetics , a discipline of biology, is the science of genes, heredity, and variation in living organisms....

     model that shows that continuous variation could be the result of Mendelian inheritance
    Mendelian inheritance
    Mendelian inheritance is a scientific description of how hereditary characteristics are passed from parent organisms to their offspring; it underlies much of genetics...

     in his paper "The Correlation Between Relatives on the Supposition of Mendelian Inheritance
    The Correlation Between Relatives on the Supposition of Mendelian Inheritance
    The Correlation Between Relatives on the Supposition of Mendelian Inheritance is a scientific paper by R.A. Fisher which was published in the Philosophical Transactions of the Royal Society of Edinburgh in 1918,...

    ".
  • J. Henri Fabre
    Jean Henri Fabre
    Jean-Henri Casimir Fabre was a French entomologist and author.-Life:Fabre was born in Saint-Léons in Aveyron, France....

    's The Sacred Beetle, and others published in English
    English language
    English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

    .
  • Jacques Loeb
    Jacques Loeb
    Jacques Loeb was a German-born American physiologist and biologist.-Biography:...

    's Forced Movements, Tropisms, and Animal Conduct published in the United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

    .

Cryptography

  • February 23 - Arthur Scherbius
    Arthur Scherbius
    Arthur Scherbius was a German electrical engineer who patented an invention for a mechanical cipher machine, later sold as the Enigma machine.Scherbius was born in Frankfurt am Main and his father was a small businessman...

     applies to patent
    Patent
    A 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....

     the Enigma machine
    Enigma machine
    An Enigma machine is any of a family of related electro-mechanical rotor cipher machines used for the encryption and decryption of secret messages. Enigma was invented by German engineer Arthur Scherbius at the end of World War I...

    .
  • Edward Hugh Hebern patents the Hebern rotor machine
    Hebern rotor machine
    The Hebern Rotor Machine was an electro-mechanical encryption machine built by combining the mechanical parts of a standard typewriter with the electrical parts of an electric typewriter, connecting the two through a scrambler...

    .

Mathematics

  • Felix Hausdorff
    Felix Hausdorff
    Felix 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,...

     introduces the concept of the fractional Hausdorff dimension
    Hausdorff dimension
    thumb|450px|Estimating the Hausdorff dimension of the coast of Great BritainIn mathematics, the Hausdorff dimension is an extended non-negative real number associated with any metric space. The Hausdorff dimension generalizes the notion of the dimension of a real vector space...

    .
  • Gaston Julia
    Gaston Julia
    Gaston Maurice Julia was a French mathematician who devised the formula for the Julia set. His works were popularized by French mathematician Benoît Mandelbrot; the Julia and Mandelbrot fractals are closely related....

     describes the iteration of a rational function
    Rational function
    In mathematics, a rational function is any function which can be written as the ratio of two polynomial functions. Neither the coefficients of the polynomials nor the values taken by the function are necessarily rational.-Definitions:...

    .

Physics

  • Josef Lense
    Josef Lense
    Josef Lense was an Austrian physicistIn 1914 Lense got his doctorate under Samuel Oppenheim. From 1927-28 he was Professor ordinarius and from 1928-1946 Professor extraordinarius for applied mathematics at the Technical University of Munich...

     and Hans Thirring
    Hans Thirring
    Hans Thirring was an Austrian theoretical physicist, professor, and father of the physicist Walter Thirring....

     find the gravitomagnetic precession of gyroscope
    Gyroscope
    A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum. In essence, a mechanical gyroscope is a spinning wheel or disk whose axle is free to take any orientation...

    s in the equations of general relativity
    General relativity
    General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics...

    .
  • Hans Reissner
    Hans Reissner
    Hans Jacob Reissner was a German aeronautical engineer whose avocation was mathematical physics. During World War I he was awarded the Iron Cross second class for his pioneering work on aircraft design....

     and Gunnar Nordström
    Gunnar Nordström
    Gunnar Nordström was a Finnish theoretical physicist best remembered for his theory of gravitation, which was an early competitor of general relativity...

     solve the Einstein and Maxwell field equations for charged spherically-symmetric non-rotating systems.
  • Friedrich Kottler
    Friedrich Kottler
    Friedrich Kottler was an Austrian theoretical physicist. He was a Privatdozent, which is a title conferred in some European university systems for someone who pursues an academic career and holds all formal qualifications to become a tenured university professor...

     gets Schwarzschild solution without Einstein vacuum field equations.

Technology

  • Edwin Armstrong
    Edwin Armstrong
    Edwin Howard Armstrong was an American electrical engineer and inventor. Armstrong was the inventor of modern frequency modulation radio....

     invents the superheterodyne receiver
    Superheterodyne receiver
    In electronics, a superheterodyne receiver uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency, which can be more conveniently processed than the original radio carrier frequency...

    .
  • Theodore von Karman
    Theodore von Karman
    Theodore von Kármán was a Hungarian-American mathematician, aerospace engineer and physicist who was active primarily in the fields of aeronautics and astronautics. He is responsible for many key advances in aerodynamics, notably his work on supersonic and hypersonic airflow characterization...

     and Asbóth Oszkár build the first co-axial helicopter
    Helicopter
    A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

    .
  • Anton Fokker invents the interrupter gear
    Interrupter gear
    An interrupter gear is a device used on military aircraft and warships in order to allow them to target opponents without damaging themselves....

    .
  • A. M. Nicolson invents the radio crystal oscillator
  • Charles Strite
    Charles Strite
    Charles P. Strite was an American inventor.Strite was born in Minneapolis, Minnesota. He received U.S. patent #1,394,450 on October 18, 1921 for the pop-up bread toaster.- External links :*...

     invents the pop-up toaster.

Awards

  • Nobel Prize
    Nobel Prize
    The Nobel Prizes are annual international awards bestowed by Scandinavian committees in recognition of cultural and scientific advances. The will of the Swedish chemist Alfred Nobel, the inventor of dynamite, established the prizes in 1895...

    • Physics
      Nobel Prize in Physics
      The Nobel Prize in Physics is awarded once a year by the Royal Swedish Academy of Sciences. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901; the others are the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and...

       - Max Karl Ernst Ludwig Planck
      Max Planck
      Max Karl Ernst Ludwig Planck, ForMemRS, was a German physicist who actualized the quantum physics, initiating a revolution in natural science and philosophy. He is regarded as the founder of the quantum theory, for which he received the Nobel Prize in Physics in 1918.-Life and career:Planck came...

    • Chemistry
      Nobel Prize in Chemistry
      The Nobel Prize in Chemistry is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature,...

       - Fritz Haber
      Fritz Haber
      Fritz 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...

    • Medicine
      Nobel Prize in Physiology or Medicine
      The Nobel Prize in Physiology or Medicine administered by the Nobel Foundation, is awarded once a year for outstanding discoveries in the field of life science and medicine. It is one of five Nobel Prizes established in 1895 by Swedish chemist Alfred Nobel, the inventor of dynamite, in his will...

       - not awarded

Births

  • January 27 - Antonín Mrkos
    Antonín Mrkos
    Antonín Mrkos was a Czech astronomer, born in Střemchoví, Czechoslovakia.- Biography :Mrkos entered the University in Brno in 1938. His studies were interrupted by the onset of World War II, and in 1945 he became a staff member at the Skalnaté Pleso Observatory in Slovakia...

     (d. 1996
    1996 in science
    The year 1996 in science and technology involved many significant events, listed below.-Astronomy and space exploration:* January 30 – Comet Hyakutake is discovered.* February 17 – NEAR Shoemaker spacecraft launched...

    ), astronomer
    Astronomer
    An 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...

    .
  • March 16 - Frederick Reines
    Frederick Reines
    Frederick Reines was an American physicist. He was awarded the 1995 Nobel Prize in Physics for his co-detection of the neutrino with Clyde Cowan in the neutrino experiment, and may be the only scientist in history "so intimately associated with the discovery of an elementary particle and the...

     (d. 1998
    1998 in science
    The year 1998 in science and technology involved many events, some of which are included below.-Astronomy and space exploration:* January–September – Cosmologists from the Supernova Cosmology Project led by Saul Perlmutter and the High-z Supernova Search Team led by Adam Riess and Brian...

    ), physicist
    Physicist
    A 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...

    .
  • April 4 - Joseph Ashbrook
    Joseph Ashbrook
    Joseph Ashbrook was an American astronomer.-Life:Ashbrook was born in Philadelphia, Pennsylvania. He received a doctorate from Harvard University in 1947 and taught at Yale University from 1946 to 1950, and at Harvard from 1950 to 1953...

     (d. 1980
    1980 in science
    The year 1980 in science and technology involved some significant events, listed below.-Astronomy and space exploration:* November 12 – Voyager program: The NASA space probe Voyager I makes its closest approach to Saturn when it flies within of the planet's cloud-tops and sends the first high...

    ), astronomer.
  • April 25 - Gérard de Vaucouleurs
    Gérard de Vaucouleurs
    -External links:* * http://nedwww.ipac.caltech.edu/level5/normal_galaxies.html-Other resources:...

     (d. 1995
    1995 in science
    The year 1995 in science and technology involved many significant events, listed below.-Archaeology:* January 18 - In southern France near Vallon-Pont-d'Arc a network of caves are discovered that contain paintings and engravings that are 17,000 to 20,000 years old.* Wes Linster discovers the first...

    ), astronomer.
  • May 11 - Richard Feynman
    Richard Feynman
    Richard Phillips Feynman was an American physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics...

     (d. 1988
    1988 in science
    The year 1988 in science and technology involved many significant events, some listed below.-Astronomy and space exploration:* September 29 – NASA resumes space shuttle flights, grounded after the Challenger disaster....

    ), physicist, Nobel laureate.
  • July 15 - Bertram N. Brockhouse (d. 2003
    2003 in science
    The year 2003 in science and technology involved some significant events.-Anthropology:*March 13 – The journal Nature reports that 350,000-year-old upright-walking human footprints have been found in Italy.-Astronomy:...

    ), physicist.
  • August 13 - Frederick Sanger
    Frederick Sanger
    Frederick Sanger, OM, CH, CBE, FRS is an English biochemist and a two-time Nobel laureate in chemistry, the only person to have been so. In 1958 he was awarded a Nobel prize in chemistry "for his work on the structure of proteins, especially that of insulin"...

    , molecular biologist.
  • August 29 - John Herivel
    John Herivel
    John W. Herivel was a British science historian and former World War II codebreaker at Bletchley Park.As a codebreaker concerned with Cryptanalysis of the Enigma, Herivel is remembered chiefly for the discovery of what was soon dubbed the Herivel tip or Herivelismus...

     (d. 2011
    2011 in science
    The year 2011 in science and technology involves many significant events and discoveries, some of which are listed below. 2011 was declared the International Year of Forests and Chemistry by the United Nations.- January :...

    ), cryptanalyst and science historian.
  • September 27 - Martin Ryle
    Martin Ryle
    Sir Martin Ryle was an English radio astronomer who developed revolutionary radio telescope systems and used them for accurate location and imaging of weak radio sources...

     (d. 1984
    1984 in science
    The year 1984 in science and technology involved some significant events.-Astronomy and space exploration:* February 7 – Astronauts Bruce McCandless II and Robert L...

    ), astronomer.
  • November 10 - Ernst Otto Fischer
    Ernst Otto Fischer
    Ernst Otto Fischer was a German chemist who won the Nobel Prize for pioneering work in the area of organometallic chemistry.-Early life:...

     (d. 2007
    2007 in science
    The year 2007 in science and technology involved many significant events.-Astronomy and space exploration:* January 12 - Comet C/2006 P1 reaches perihelion and becomes visible during daylight....

    ), chemist
    Chemist
    A 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...

    , Nobel laureate.
  • November 19 - Hendrik C. van de Hulst
    Hendrik C. van de Hulst
    Hendrik Christoffel "Henk" van de Hulst FRS was a Dutch astronomer and mathematician....

     (d. 2000
    2000 in science
    The year 2000 in science and technology involved some significant events.-Astronomy and space exploration:* May 4 – A rare conjunction occurs on the New Moon including all seven of the traditional celestial bodies known from ancient times up until 1781 with the discovery of Uranus...

    ), astronomer.
  • December 25 - Tamara Mikhailovna Smirnova
    Tamara Mikhailovna Smirnova
    Tamara Mikhailovna Smirnova was a Russian astronomer.From 1966 to 1988 she was a staff member of the Institute of Theoretical Astronomy at Leningrad. She co-discovered the periodic comet 74P/Smirnova-Chernykh, along with Nikolai Stepanovich Chernykh. She has also discovered various asteroids...

     (d. 2001
    2001 in science
    The year 2001 in science and technology involved many events, some of which are included below.-Astronomy and space exploration:* The NEAR Shoemaker spacecraft lands in the "saddle" region of 433 Eros, becoming the first spacecraft to land on an asteroid....

    ), astronomer.

Deaths

  • January 6 - Georg Cantor
    Georg Cantor
    Georg Ferdinand Ludwig Philipp Cantor was a German mathematician, best known as the inventor of set theory, which has become a fundamental theory in mathematics. Cantor established the importance of one-to-one correspondence between the members of two sets, defined infinite and well-ordered sets,...

     (b. 1845
    1845 in science
    The year 1845 in science and technology involved some significant events, listed below.-Events:* January 14 – Physikalische Gesellschaft zu Berlin established and begins publishing Fortschritte der Physik and Verhandlungen....

    ), mathematician
    Mathematician
    A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

    .
  • January 26 - Ewald Hering
    Ewald Hering
    Karl Ewald Konstantin Hering was a German physiologist who did much research into color vision and spatial perception...

     (b. 1834
    1834 in science
    The year 1834 in science and technology involved some significant events, listed below.-Events:* March - William Whewell first publishes the term scientist in the Quarterly Review, but notes it as "not generally palatable"....

    ), physiologist.
  • January 31 - Ivan Pulyui
    Ivan Pulyui
    Ivan Pulyui was a Ukrainian-born physicist, inventor and patriot who has been championed as an early developer of the use of X-rays for medical imaging...

     (b. 1845
    1845 in science
    The year 1845 in science and technology involved some significant events, listed below.-Events:* January 14 – Physikalische Gesellschaft zu Berlin established and begins publishing Fortschritte der Physik and Verhandlungen....

    ), physicist
    Physicist
    A 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...

    .
  • April 20 - Karl Ferdinand Braun
    Karl Ferdinand Braun
    Karl Ferdinand Braun was a German inventor, physicist and Nobel laureate in physics. Braun contributed significantly to the development of the radio and television technology: he shared with Guglielmo Marconi the 1909 Nobel Prize in Physics.-Biography:Braun was born in Fulda, Germany, and...

     (b. 1850
    1850 in science
    The year 1850 in science and technology involved some significant events, listed below.-Chemistry:* October 17 - James Young patents a method of distilling paraffin from coal.-Mathematics:* Thomas Kirkman proposes Kirkman's schoolgirl problem.* J. J...

    ), physicist.
  • May 31 - Alexander Mitscherlich
    Alexander Mitscherlich
    Alexander Mitscherlich was a German chemist.His most important work was in the field of processing wood to create cellulose....

     (b. 1836
    1836 in science
    The year 1836 in science and technology involved some significant events, listed below.-Astronomy:* May 15 - Francis Baily, during an eclipse of the sun, observes the phenomenon named after him as Baily's beads.-Biology:...

    ), chemist
    Chemist
    A 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...

    .
  • June 27 - George Mary Searle
    George Mary Searle
    George Mary Searle was an American astronomer and clergyman.He discovered the asteroid 55 Pandora in 1858. He also discovered six galaxies. In later life he became a member of the Paulist order and taught at the Catholic University of America.-External links:*...

     (b. 1839
    1839 in science
    The year 1839 in science and technology involved some significant events, listed below.-Astronomy:* January - The first parallax measurement of the distance to Alpha Centauri is published by Thomas Henderson.-Biology:...

    ), astronomer
    Astronomer
    An 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...

    .
  • September 7 - Peter Ludwig Mejdell Sylow
    Peter Ludwig Mejdell Sylow
    Peter Ludwig Mejdell Sylow was a Norwegianmathematician, who proved foundational results in group theory. He was born and died in Christiania ....

     (b. 1832
    1832 in science
    The year 1832 in science and technology involved some significant events, listed below.-Biology:* Isidore Geoffroy Saint-Hilaire begins publication of Histoire générale et particulière des anomalies de l’organisation chez l’homme et les animaux, a key text on teratology.-Exploration:* April 21 -...

    ), mathematician
    Mathematician
    A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

    .
  • October 28 - Ulisse Dini (b. 1845
    1845 in science
    The year 1845 in science and technology involved some significant events, listed below.-Events:* January 14 – Physikalische Gesellschaft zu Berlin established and begins publishing Fortschritte der Physik and Verhandlungen....

    ), mathematician.
  • November 3 - Aleksandr Lyapunov
    Aleksandr Lyapunov
    Aleksandr Mikhailovich Lyapunov was a Russian mathematician, mechanician and physicist. His surname is sometimes romanized as Ljapunov, Liapunov or Ljapunow....

     (b. 1857
    1857 in science
    The year 1857 in science and technology involved some significant events, listed below.-Biology:* Rev. M. J. Berkeley publishes Introduction to Cryptogamic Botany.-Chemistry:* Robert Bunsen invents apparatus for measuring effusion....

    ), mathematician and physicist.
  • December 27 - Birt Acres
    Birt Acres
    Birt Acres was a photographer and film pioneer.Born in Richmond, Virginia to English parents, he invented the first British 35 mm moving picture camera, the first daylight loading home movie camera and projector, Birtac, was the first travelling newsreel reporter in international film history and...

     (b. 1854
    1854 in science
    The year 1854 in science and technology involved some significant events, listed below.-Astronomy:* July 22 - Discovery of the asteroid 30 Urania by John Russell Hind....

    ), pioneer of cinematography
    Cinematography
    Cinematography is the making of lighting and camera choices when recording photographic images for cinema. It is closely related to the art of still photography...

    .
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK