Template:Selected anniversaries/March 21: Difference between revisions
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||1762: Nicolas Louis de Lacaille dies ... priest, astronomer, and academic. He named 15 out of the 88 constellations. Pic. | ||1762: Nicolas Louis de Lacaille dies ... priest, astronomer, and academic. He named 15 out of the 88 constellations. Pic. | ||
||1767: Armand Jean François Séguin born ... chemist and physiologist who discovered a faster and cheaper process for tanning leather. As a result, he became immensely rich through the supply of leather to Napoleon's armies. Pic search | ||1767: Armand Jean François Séguin born ... chemist and physiologist who discovered a faster and cheaper process for tanning leather. As a result, he became immensely rich through the supply of leather to Napoleon's armies. Pic search. | ||
File:Joseph_Fourier.jpg|link=Joseph Fourier (nonfiction)|1768: Mathematician and physicist [[Joseph Fourier (nonfiction)|Joseph Fourier]] born. Fourier will initiate the investigation of Fourier series and their applications to problems of heat transfer and vibrations. | File:Joseph_Fourier.jpg|link=Joseph Fourier (nonfiction)|1768: Mathematician and physicist [[Joseph Fourier (nonfiction)|Joseph Fourier]] born. Fourier will initiate the investigation of Fourier series and their applications to problems of heat transfer and vibrations. | ||
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||1894: Rudolf Nebel born ... spaceflight advocate active in Germany's amateur rocket group, the ''Verein für Raumschiffahrt'' (VfR – "Spaceflight Society") in the 1930s and in rebuilding German rocketry following World War II. Pic search. | ||1894: Rudolf Nebel born ... spaceflight advocate active in Germany's amateur rocket group, the ''Verein für Raumschiffahrt'' (VfR – "Spaceflight Society") in the 1930s and in rebuilding German rocketry following World War II. Pic search. | ||
||1896: Friedrich Waismann born ... mathematician, physicist, and philosopher from the Vienna Circle. Pic search | ||1896: William Quan Judge dies ... occultist and theosophist. Pic. | ||
||1896: Friedrich Waismann born ... mathematician, physicist, and philosopher from the Vienna Circle. Pic search. | |||
|||File:Tesla with ray gun.jpg|link=Nikola Tesla|1901: Physicist, inventor, and crime-fighter [[Nikola Tesla]] predicts that mathematician [[George David Birkhoff (nonfiction)|George David Birkhoff]] will be "one of the great [[Crimes against mathematical constants|crime fighters]] of his generation." | |||File:Tesla with ray gun.jpg|link=Nikola Tesla|1901: Physicist, inventor, and crime-fighter [[Nikola Tesla]] predicts that mathematician [[George David Birkhoff (nonfiction)|George David Birkhoff]] will be "one of the great [[Crimes against mathematical constants|crime fighters]] of his generation." | ||
||1911: Walter Lincoln Hawkins born ... scientist and inventor. Hawkins was a pioneer of polymer chemistry. For thirty-four years he worked at Bell Laboratories, where he was instrumental in designing a long-lasting plastic to sheath telephone cable. Pic search | ||1911: Walter Lincoln Hawkins born ... scientist and inventor. Hawkins was a pioneer of polymer chemistry. For thirty-four years he worked at Bell Laboratories, where he was instrumental in designing a long-lasting plastic to sheath telephone cable. Pic search. | ||
||1913: Guillermo Haro Barraza born ... astronomer. Through his own astronomical research and the formation of new institutions, Haro was influential in the development of modern observational astronomy in Mexico. Internationally, he is best known for his contribution to the discovery of Herbig–Haro objects. Pic. | ||1913: Guillermo Haro Barraza born ... astronomer. Through his own astronomical research and the formation of new institutions, Haro was influential in the development of modern observational astronomy in Mexico. Internationally, he is best known for his contribution to the discovery of Herbig–Haro objects. Pic. | ||
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||1970: The first Earth Day proclamation is issued by Joseph Alioto, Mayor of San Francisco. | ||1970: The first Earth Day proclamation is issued by Joseph Alioto, Mayor of San Francisco. | ||
||1980: Peter Stoner dies ... mathematician and astronomer. Pic search | ||1980: Peter Stoner dies ... mathematician and astronomer. Pic search. | ||
||1980: US President Jimmy Carter announces a United States boycott of the 1980 Summer Olympics in Moscow to protest the Soviet war in Afghanistan. Pic. | ||1980: US President Jimmy Carter announces a United States boycott of the 1980 Summer Olympics in Moscow to protest the Soviet war in Afghanistan. Pic. | ||
Revision as of 09:35, 13 April 2020
1768: Mathematician and physicist Joseph Fourier born. Fourier will initiate the investigation of Fourier series and their applications to problems of heat transfer and vibrations.
1884: Mathematician George David Birkhoff born. Birkhoff will become one of the most important leaders in American mathematics of his generation.
1924: Physicist Harry Lehmann born. Lehmann will contribute to the LSZ reduction formula and the Källén–Lehmann spectral representation.
1928: Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
1965: NASA launches Ranger 9, the last in a series of unmanned lunar space probes.
1986: Computer scientist and Gnomon algorithm theorist Philippe Flajolet uses the theory of average-case complexity to defeat the Forbidden Ratio in single combat.
2009: Mathematician Thierry Aubin dies. Aubin was a leading expert on Riemannian geometry and non-linear partial differential equations.
2016: Chromatographic analysis of Green Ring 2 reveals "at least two, possibly three" previously unknown shades of the color green.