1990 in science
From Wikipedia, the free encyclopedia
The year 1990 in science and technology involved some significant events.
Astronomy and space exploration
- February 14 – The Pale Blue Dot photograph of Earth is sent back from the Voyager 1 probe after completing its primary mission, from around 3.5 billion miles away.
- April 23 – Gamma ray burst GRB 090423 is detected, coming from the most distant known astronomical object of any kind at this time.
- April 24 – The Space Shuttle Discovery places the Hubble Space Telescope into orbit.
- October 13 – a 44 kilogram, 41.5 km/s Earth-grazing meteoroid passed above Czechoslovakia and Poland at 97.9 km. It was the first time when calculations of the orbit of such a body based on photographic records from two distant places were made.
Biology and medicine
- The Human Genome Project is founded.
- February – Adobe Photoshop 1.0 graphics software, devised by Thomas Knoll, is released.
- November 12 – Tim Berners-Lee publishes a more formal proposal for the World Wide Web.
- November 13 – The first known web page is written.
- Approximate date – Satoshi Tajiri begins creating the first Pokémon game.
History of science
- Thomas W. Laqueur publishes Making Sex: Body and Gender From the Greeks to Freud (Harvard University Press).
- Victor Kolyvagin introduces Euler systems.
- Ruth Lawrence publishes a paper on homological representations of the Hecke algebra, introducing, among other things, certain novel linear representations of the braid group, the Lawrence–Krammer representation.
- August 12 – "Sue", the best preserved Tyrannosaurus rex specimen ever found, is discovered in South Dakota.
- Fields Prize in Mathematics: Vladimir Drinfeld, Vaughan Frederick Randal Jones, Shigefumi Mori and Edward Witten
- Nobel Prizes
- Turing Award – Fernando J. Corbató
- January 4 – Prof. Doc Edgerton, (b. 1903), American electrical engineer.
- January 14 – Rosalind Pitt-Rivers (b. 1907), English biochemist.
- January 26 – Lewis Mumford (b. 1895), American historian and philosopher of science.
- March 20 – Victor Rothschild, 3rd Baron Rothschild (b. 1910), English polymath.
- March 22 – Gerald Bull (b. 1928), Canadian engineer.
- March 24 – An Wang (b. 1920), Chinese American computer designer.
- October 9 – Murray Bowen (b. 1913), American psychiatrist and pioneer of family therapy.
- October 17 – Hans Freudenthal (b. 1905), Dutch mathematician.
- "STS-31". Mission Archives. NASA. 2006-10-14. Retrieved 2013-01-17.
- Spurny', P.; Ceplecha, Z.; Borovicka, J. Earth-grazing fireball: Czechoslovakia, Poland, October 13, 1990, 03h27m16sUT. WGN, Vol. 19, Nr. 1, p. 13; (aphelion of its orbit changed from 2.80 AU to 1.80 AU)
- Hormby, John (2007-06-05). "How Adobe's Photoshop Was Born". Story Photography. Archived from the original on 2007-10-11. Retrieved 2007-06-15.
- Berners-Lee, T.; Cailliau, R. (12 November 1990). "WorldWideWeb: Proposal for a HyperText Project". Retrieved 2011-11-29.
- "Links and Anchors". Retrieved 2011-11-29.
- Larimer, Tim (1999-11-22). "The Ultimate Game Freak". Time 154 (20) (Asia). Retrieved 2015-02-02.
- Kolyvagin, V. A. (1990), "Euler systems", The Grothendieck Festschrift, Vol. II, Progress in Mathematics 87, Boston: Birkhäuser, pp. 435–483, doi:10.1007/978-0-8176-4575-5_11, ISBN 978-0-8176-3428-5, MR 1106906
- Lawrence, R. J. (1990). "Homological representations of the Hecke algebra" (PDF). Communications in Mathematical Physics 135: 141–191. Bibcode:1990CMaPh.135..141L. doi:10.1007/BF02097660. Retrieved 2011-11-29.