Template:Selected anniversaries/April 22: Difference between revisions
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|File:Ludolf van Ceulen.jpg|link=Ludolph van Ceulen (nonfiction)|1561: Mathematician and fencer [[Ludolph van Ceulen (nonfiction)|Ludolph van Ceulen]] uses [[Gnomon algorithm]] techniques to prevent outbreak of [[Wumpus-compass syndrome]]. | |File:Ludolf van Ceulen.jpg|link=Ludolph van Ceulen (nonfiction)|1561: Mathematician and fencer [[Ludolph van Ceulen (nonfiction)|Ludolph van Ceulen]] uses [[Gnomon algorithm]] techniques to prevent outbreak of [[Wumpus-compass syndrome]]. | ||
||1592 | File:Wilhelm_Schickard_1632.jpg|link=Wilhelm Schickard (nonfiction)|1592: Minister, scholar, astronomer, mathematician, cartographer, and scientific instrument maker [[Wilhelm Schickard (nonfiction)|Wilhelm Schickard]] born. He will invent machines for calculating astronomical dates and for Hebrew grammar, and contribute to the emerging field of computing machines. | ||
||1758 – Antoine de Jussieu, French botanist and physician (b. 1686) | ||1758 – Antoine de Jussieu, French botanist and physician (b. 1686) | ||
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||1933 – Anthony Llewellyn, Welsh-American chemist and astronaut (d. 2013) | ||1933 – Anthony Llewellyn, Welsh-American chemist and astronaut (d. 2013) | ||
||Amir Pnueli (b. April 22, 1941) was an Israeli computer scientist and the 1996 Turing Award recipient. He worked on temporal logic and model checking, particularly regarding fairness properties of concurrent systems. Pic. | |||
||1944 – The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater. | ||1944 – The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater. | ||
Revision as of 16:58, 8 April 2018
1592: Minister, scholar, astronomer, mathematician, cartographer, and scientific instrument maker Wilhelm Schickard born. He will invent machines for calculating astronomical dates and for Hebrew grammar, and contribute to the emerging field of computing machines.
1904: American physicist and academic J. Robert Oppenheimer born. His achievements in physics will include the Born–Oppenheimer approximation for molecular wavefunctions, work on the theory of electrons and positrons, the Oppenheimer–Phillips process in nuclear fusion, and the first prediction of quantum tunneling.
1961: Plutonium used for crimes against mathematical constants, says Cantor Parabola.
1977: Optical fiber is first used to carry live telephone traffic.