Template:Selected anniversaries/April 12: Difference between revisions

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File:Johannes Kepler 1610.jpg|link=Johannes Kepler (nonfiction)|1604: [[Johannes Kepler (nonfiction)|Johannes Kepler]] discovers new class of [[crimes against mathematical constants]].
||1794 – Germinal Pierre Dandelin, Belgian mathematician and engineer (d. 1847)
File:A la mémoire de J.M. Jacquard.jpg|link=Joseph Marie Jacquard (nonfiction)|1805: Emperor Napoleon and Empress Josephine visit Lyon and viewed [[Joseph Marie Jacquard (nonfiction)|Joseph Marie Jacquard]]'s new [[Jacquard loom (nonfiction)|programmable loom]].
File:Charles Messier.jpg|link=Charles Messier (nonfiction)|1817: Astronomer [[Charles Messier (nonfiction)|Charles Messier]] dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".
File:Charles Messier.jpg|link=Charles Messier (nonfiction)|1817: Astronomer [[Charles Messier (nonfiction)|Charles Messier]] dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".
||Albert Heim (b. 12 April 1849) was a Swiss geologist, noted for his three-volume Geologie der Schweiz. Pic.
||1851 – Edward Walter Maunder, English astronomer and author (d. 1928)


File:Carl Louis Ferdinand von Lindemann.jpg|link=Ferdinand von Lindemann (nonfiction)|1852: Mathematician and academic [[Ferdinand von Lindemann (nonfiction)|Ferdinand von Lindemann]] born. He will prove (1882) that π (pi) is a transcendental number.
File:Carl Louis Ferdinand von Lindemann.jpg|link=Ferdinand von Lindemann (nonfiction)|1852: Mathematician and academic [[Ferdinand von Lindemann (nonfiction)|Ferdinand von Lindemann]] born. He will prove (1882) that π (pi) is a transcendental number.


||Marie Alfred Cornu (d. April 12, 1902) was a French physicist. The French generally refer to him as Alfred Cornu. His work mainly concerned optics and spectroscopy. He carried out a classical redetermination of the speed of light by A. H. L. Fizeau's method (see Fizeau-Foucault Apparatus), introducing various improvements in the apparatus, which added greatly to the accuracy of the results.
File:Donald_J._Hughes.png|link=Donald J. Hughes (nonfiction)|1960: Nuclear physicist [[Donald J. Hughes (nonfiction)|Donald J. Hughes]] dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.
 
||1862 – American Civil War: The Andrews Raid (the Great Locomotive Chase) occurs, starting from Big Shanty, Georgia (now Kennesaw).
 
||1884 – Otto Meyerhof, German physician and biochemist, Nobel Prize laureate (d. 1951)
 
||Joseph Finnegan (b. April 12, 1905) was a US linguist and cryptanalyst with Station Hypo during the Second World War.
 
||Maurice Girodias (b. 12 April 1919) was a French publisher who was the founder of the Olympia Press. At one time he was the owner of his father's Obelisk Press. He spent most of his productive years in Paris.
 
||1927 – Shanghai massacre of 1927: Chiang Kai-shek orders the Communist Party of China members executed in Shanghai, ending the First United Front.
 
||1937 – Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
 
||1945 – U.S. President Franklin D. Roosevelt dies in office; Vice President Harry S. Truman becomes President upon Roosevelt's death.
 
File:Project Diana antenna.jpg|link=Project Diana (nonfiction)|1947: The United States Army Signal Corps uses [[Project Diana (nonfiction)|Project Diana]] antenna to manufacture high-grade [[clandestiphrine]].
 
||1955 – The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.


File:Yuri Gagarin Vostok1.jpg|link=Yuri Gagarin (nonfiction)|1961: Soviet cosmonaut [[Yuri Gagarin (nonfiction)|Yuri Gagarin]] becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).
File:Yuri Gagarin Vostok1.jpg|link=Yuri Gagarin (nonfiction)|1961: Soviet cosmonaut [[Yuri Gagarin (nonfiction)|Yuri Gagarin]] becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).


||1963 – The Soviet nuclear-powered submarine K-33 collides with the Finnish merchant vessel M/S Finnclipper in the Danish straits.
File:Edwin_T._Layton.jpg|link=Edwin T. Layton (nonfiction)|1984: United States Navy Admiral [[Edwin T. Layton (nonfiction)|Edwin Thomas Layton]] dies. Layton served as a Naval intelligence officer before and during World War II.
 
||1970 – Soviet submarine K-8, carrying four nuclear torpedoes, sinks in the Bay of Biscay four days after a fire on board.
 
||1981 – The first launch of a Space Shuttle (Columbia) takes place: The STS-1 mission.
 
||Edwin Thomas Layton (d. April 12, 1984) was a Rear Admiral in the United States Navy, who is most noted for his work as an intelligence officer during and before World War II.
 
||Hans Neurath (d. April 2002) was a biochemist, a leader in protein chemistry
 
||2013 – Robert Byrne, American chess player and author (b. 1928)


File:Zero knowledge proof.png|link=Zero-knowledge proof (nonfiction)|2016: Advances in [[Zero-knowledge proof (nonfiction)|zero-knowledge proof]] theory "are central to the problem of mathematical reliability," says mathematician and crime-fighter [[Alice Beta]].
File:Cantor Parabola.jpg|link=Cantor Parabola|2020: Math photographer [[Cantor Parabola]] wins Pulitzer Prize for series of exo-temporal photographs of Minicon 55 in 2021.


File:Cantor Parabola.jpg|link=Cantor Parabola|2017: Math photographer [[Cantor Parabola]] wins Pulitzer Prize for series of quantum timeline photographs.
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Latest revision as of 05:05, 12 April 2022

  • 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".

    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.

    1852: Mathematician and academic Ferdinand von Lindemann born. He will prove (1882) that π (pi) is a transcendental number.

  • 1960: Nuclear physicist Donald J. Hughes dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.

    1960: Nuclear physicist Donald J. Hughes dies. Hughes was one of the signers of the Franck Report in June, 1945, recommending that the United States not use the atomic bomb as a weapon to prompt the surrender of Japan in World War II.

  • 1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).

    1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).

  • 1984: United States Navy Admiral Edwin Thomas Layton dies. Layton served as a Naval intelligence officer before and during World War II.

    1984: United States Navy Admiral Edwin Thomas Layton dies. Layton served as a Naval intelligence officer before and during World War II.

  • 2020: Math photographer Cantor Parabola wins Pulitzer Prize for series of exo-temporal photographs of Minicon 55 in 2021.

    2020: Math photographer Cantor Parabola wins Pulitzer Prize for series of exo-temporal photographs of Minicon 55 in 2021.

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