Template:Selected anniversaries/April 12: Difference between revisions
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||2004: George William Whitehead, Jr. dies ... professor of mathematics at the Massachusetts Institute of Technology, a member of the United States National Academy of Sciences, and a Fellow of the American Academy of Arts and Sciences. He is known for his work on algebraic topology. He invented the J-homomorphism, and was among the first to systematically calculate the homotopy groups of spheres. Pic: http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/whitehead-george.pdf | ||2004: George William Whitehead, Jr. dies ... professor of mathematics at the Massachusetts Institute of Technology, a member of the United States National Academy of Sciences, and a Fellow of the American Academy of Arts and Sciences. He is known for his work on algebraic topology. He invented the J-homomorphism, and was among the first to systematically calculate the homotopy groups of spheres. Pic: http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/whitehead-george.pdf | ||
||2009: John Maddox dies ... chemist, physicist, and journalist. Pic search: https://www.google.com/search?q=john+maddox | |||
||2013: Robert Byrne dies ... chess player and author. Pic. | ||2013: Robert Byrne dies ... chess player and author. Pic. | ||
Revision as of 04:39, 27 November 2019
1817: Astronomer Charles Messier dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".
1852: Mathematician and academic Ferdinand von Lindemann born. He will prove (1882) that π (pi) is a transcendental number.
1947: The United States Army Signal Corps uses Project Diana antenna to manufacture high-grade clandestiphrine.
1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).
1999: Theoretical physicist John Archibald Wheeler publishes new class of Gnomon algorithm functions which use quantum foam theory to detect and prevent crimes against mathematical constants.
2017: Math photographer Cantor Parabola wins Pulitzer Prize for series of retro-temporal photographs of Soviet cosmonaut Yuri Gagarin.