1902 in science
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The year 1902 in science and technology involved some significant events, listed below.
Aeronautics
- May 15 – Lyman Gilmore claims to have flown his steam-powered fixed-wing aircraft, although his proof is supposedly destroyed in a 1935 fire.
Chemistry
- barbitone (barbital or Veronal) is an effective hypnotic agent.[1] It becomes the first commercially marketed barbiturate, being used as a treatment for insomniafrom 1903.
- Verneuil process for making synthetic rubies.
- German chemist Wilhelm Ostwald develops and patents the Ostwald process for making nitric acid.
Earth sciences
- April–August – Eruption of Mount Pelée in Martinique.
- seismic scale for earthquakes by Giuseppe Mercalli.
Exploration
- July 14 - Peruvian explorer Agustín Lizárraga rediscovers the Inca citadel of Machu Picchu, Peru
- December 30 – Wilsonreach the furthest southern point reached thus far by man, south of 82°S.
Genetics
- Walter Sutton (in the United States) and Theodor Boveri (in Germany) independently develop the Boveri–Sutton chromosome theory, explaining the mechanism underlying the laws of Mendelian inheritance by identifying chromosomes as the carriers of genetic material.[2]
History of science
- May 17 – Archaeologist Valerios Stais identifies the Antikythera mechanism, now considered to be the oldest known analog computer.[3]
Mathematics
- June 16 – Bertrand Russell writes to Gottlob Frege informing him of the problem in naive set theory that will become known as Russell's paradox.[4]
- Gyula Farkas publishes the first proof of Farkas' lemma.[5]
- Henri Lebesgue introduces the theory of Lebesgue integration.[6]
Medicine
- January 1 – nurses. On January 10, Ellen Doughertybecomes the world's first registered nurse.
- February – A commission on mosquitoes.
Paleontology
- Remains of the second Tyrannosaurus rex specimen, the first recognized as such, are excavated by Barnum Brown in the Hell Creek Formation of Montana.[7]
Physics
- Kennelly-Heaviside Layer of the ionosphere.
- James Jeans finds the length scale required for gravitational perturbations to grow in a static nearly homogeneous medium.
- Philipp Lenard observes that maximum photoelectron energies are independent of illuminating intensity but depend on frequency.
- Gilbert N. Lewis develops the cubical atom atomic model.
- Theodor Svedberg suggests that fluctuations in molecular bombardment cause the Brownian motion.
Physiology
- William Bayliss and Ernest Starling make the first discovery of a hormone, secretin.
Psychology
- Vienna Psychoanalytic Society begins to meet as the Wednesday Psychological Society in Sigmund Freud's apartment.
Technology
- January 1 – Nathan Stubblefield demonstrates his wireless telephone device in Kentucky.
- April 13 – A new land speed record of 74 mph (119 km/h) is set in Nice, France, by Léon Serpollet driving a steam car.
- July 17 – Willis Carrier devises the first modern air conditioning system for a plant in New York City.
- December 10 – River Nile in Egypt.
- First Vierendeel bridge built, across the Scheldt at Avelgem in Belgium.
Zoology
- October – First Robert von Beringe in German East Africa.[8]
Institutions
- January 28 – The Carnegie Institution is founded in Washington, D.C., to promote scientific research with a $10 million gift from Andrew Carnegie.
Awards
- Nobel Prizes
- Physics – Hendrik Lorentz, Pieter Zeeman
- Hermann Emil Fischer
- Medicine – Ronald Ross
- Hughes Medal first awarded by the Royal Society of London to J. J. Thomson
- June 26 – First recipients of the Order of Merit in the United Kingdom include
- Lord Rayleigh
- Lord Kelvin
- Lord Lister
- Sir William Huggins
Births
- February 10 – Walter Houser Brattain (died 1987), American physicist.
- February 16 – Zhang Yuzhe (died 1986), Chinese astronomer.
- May 25 – AT&T Bell Laboratories.
- June 14 – Paul Lester Errington (died 1962), American conservationist.
- June 15 – Erik Erikson, né Salomonsen (died 1994), German-born psychologist.
- August 8 – Paul Dirac (died 1984), English physicist.
- August 13 – Felix Wankel (died 1988), German mechanical engineer.
- November 2 – Sergey Lebedev (died 1974), Russian computer scientist.
Deaths
- January 23 – Alfred William Bennett, British botanist (born 1833)[9]
- February 11 – Caroline Rosenberg (born 1810) Danish botanist.
- March 6 – dermatologist.
- April 12 –
- May 26 – telecommunications engineer.
- September 5 – pathologist and biologist.
- September 18 – Thorborg Rappe (born 1832), Swedish pioneer in the education of students with Intellectual disability.
- November 12 – William Henry Barlow (born 1812), English railway civil engineer.
- December 22 – sexologist.
References
- ^ Fischer, E. H.; Mering, J. (1903). "Ueber eine neue Classe von Schlafmitteln". Therapie der Gegenwart (in German). 5: 97–101. Retrieved 2010-09-13.
- ^ "Genetics and Genomics Timeline – 1902: Theodor Boveri (1862-1915) and Walter Sutton (1877-1916) propose that chromosomes bear hereditary factors in accordance with Mendelian laws". Genome News Network. J. Craig Venter Institute. 2004. Retrieved 2011-12-21.
- ISBN 978-1-56414-897-1. Retrieved 2011-05-16.
- ISBN 978-0-631-19445-3.
- ^ Farkas, Gyula (1894). "A Fourier-féle mechanikai elv alkamazásai". Mathematikai és Természettudományi Értesítő. 12: 457–472.
- ISBN 978-1-84724-147-4.
- ^ "Barnum Brown". Strange Science. 2015-06-14. Retrieved 2017-12-12.
- ISBN 0-226-73635-0.
- ^ Who was who: A Companion to "Who's Who". A. & C. Black. 1967. p. 57.
- ^ Chisholm, Hugh, ed. (1911). . Encyclopædia Britannica. Vol. 7 (11th ed.). Cambridge University Press.