Template:Selected anniversaries/April 19: Difference between revisions
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||1877: Ole Evinrude born ... inventor and businessman, invented the outboard motor. Pic search yes: https://www.google.com/search?q=ole+evinrude | ||1877: Ole Evinrude born ... inventor and businessman, invented the outboard motor. Pic search yes: https://www.google.com/search?q=ole+evinrude | ||
File:Karl Mikhailovich Peterson.jpg|link=Karl Mikhailovich Peterson (nonfiction)|1881: Mathematician [[Karl Mikhailovich Peterson (nonfiction)|Karl Mikhailovich Peterson]] dies. | File:Karl Mikhailovich Peterson.jpg|link=Karl Mikhailovich Peterson (nonfiction)|1881: Mathematician [[Karl Mikhailovich Peterson (nonfiction)|Karl Mikhailovich Peterson]] dies. Peterson discovered equations which were subsequently named the Gauss–Codazzi equations, fundamental to the theory of embedded hypersurfaces in a Euclidean space. | ||
File:Flying Bison.jpg|link=Flying bison|1882: Large herd of [[Flying bison]] (''Bison pterobonasus'') migrates from [[Periphery (town)|Periphery]] to [[New Minneapolis, Canada]]. | File:Flying Bison.jpg|link=Flying bison|1882: Large herd of [[Flying bison]] (''Bison pterobonasus'') migrates from [[Periphery (town)|Periphery]] to [[New Minneapolis, Canada]]. | ||
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||1909: Conel Hugh O'Donel Alexander born ... cryptanalyst, chess player, and chess writer. He worked on the German Enigma machine at Bletchley Park during the Second World War, and was later the head of the cryptanalysis division at GCHQ for 25 years. Pic. | ||1909: Conel Hugh O'Donel Alexander born ... cryptanalyst, chess player, and chess writer. He worked on the German Enigma machine at Bletchley Park during the Second World War, and was later the head of the cryptanalysis division at GCHQ for 25 years. Pic. | ||
File:Glenn Seaborg.jpg|link=Glenn T. Seaborg (nonfiction)|1912: Chemist [[Glenn T. Seaborg (nonfiction)|Glenn T. Seaborg]] born. | File:Glenn Seaborg.jpg|link=Glenn T. Seaborg (nonfiction)|1912: Chemist [[Glenn T. Seaborg (nonfiction)|Glenn T. Seaborg]] born. Seaborg will share the 1951 Nobel Prize in Chemistry for the synthesis, discovery, and investigation of transuranium elements. | ||
File:Charles Sanders Peirce in 1859.jpg|link=Charles Sanders Peirce (nonfiction)|1914: Mathematician and philosopher [[Charles Sanders Peirce (nonfiction)|Charles Sanders Peirce]] dies. | File:Charles Sanders Peirce in 1859.jpg|link=Charles Sanders Peirce (nonfiction)|1914: Mathematician and philosopher [[Charles Sanders Peirce (nonfiction)|Charles Sanders Peirce]] dies. Peirce is remembered as "the father of pragmatism". | ||
File:Giuseppe Peano.jpg|link=Giuseppe Peano (nonfiction)|1932: Mathematician [[Giuseppe Peano (nonfiction)|Giuseppe Peano]] publishes new class of [[Gnomon algorithm functions]] which use [[Set theory (nonfiction)|set theory]] to detect and prevent [[crimes against mathematical constants]]. | File:Giuseppe Peano.jpg|link=Giuseppe Peano (nonfiction)|1932: Mathematician [[Giuseppe Peano (nonfiction)|Giuseppe Peano]] publishes new class of [[Gnomon algorithm functions]] which use [[Set theory (nonfiction)|set theory]] to detect and prevent [[crimes against mathematical constants]]. | ||
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File:Violet Spiral.jpg|link=Violet Spiral (nonfiction)|2016: Chromatographic analysis of ''[[Violet Spiral (nonfiction)|Violet Spiral]]'' reveals "at least two, probably three" previously unknown shades of [[Violet (nonfiction)|violet]]. | File:Violet Spiral.jpg|link=Violet Spiral (nonfiction)|2016: Chromatographic analysis of ''[[Violet Spiral (nonfiction)|Violet Spiral]]'' reveals "at least two, probably three" previously unknown shades of [[Violet (nonfiction)|violet]]. | ||
File:Walter Kohn.jpg|link=Walter Kohn (nonfiction)|2016: Theoretical physicist, theoretical chemist, and Nobel laureate [[Walter Kohn (nonfiction)|Walter Kohn]] dies. | File:Walter Kohn.jpg|link=Walter Kohn (nonfiction)|2016: Theoretical physicist, theoretical chemist, and Nobel laureate [[Walter Kohn (nonfiction)|Walter Kohn]] dies. Kohn developed density functional theory, which makes it possible to calculate quantum mechanical electronic structure by equations involving the electronic density. | ||
File:Great Nerd Giveaway Poster.png|link=Minicon 54 (nonfiction)#The_Great_Nerd_Giveaway|2019: The Great Nerd Giveaway begins. By the end of Minicon 54, hundreds of nerd items will have found new homes, with lots of fun generated in the process. | File:Great Nerd Giveaway Poster.png|link=Minicon 54 (nonfiction)#The_Great_Nerd_Giveaway|2019: The Great Nerd Giveaway begins. By the end of Minicon 54, hundreds of nerd items will have found new homes, with lots of fun generated in the process. | ||
</gallery> | </gallery> |
Revision as of 04:15, 19 April 2020
1860: On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice.
1881: Mathematician Karl Mikhailovich Peterson dies. Peterson discovered equations which were subsequently named the Gauss–Codazzi equations, fundamental to the theory of embedded hypersurfaces in a Euclidean space.
1882: Large herd of Flying bison (Bison pterobonasus) migrates from Periphery to New Minneapolis, Canada.
1912: Chemist Glenn T. Seaborg born. Seaborg will share the 1951 Nobel Prize in Chemistry for the synthesis, discovery, and investigation of transuranium elements.
1914: Mathematician and philosopher Charles Sanders Peirce dies. Peirce is remembered as "the father of pragmatism".
1932: Mathematician Giuseppe Peano publishes new class of Gnomon algorithm functions which use set theory to detect and prevent crimes against mathematical constants.
2016: Chromatographic analysis of Violet Spiral reveals "at least two, probably three" previously unknown shades of violet.
2016: Theoretical physicist, theoretical chemist, and Nobel laureate Walter Kohn dies. Kohn developed density functional theory, which makes it possible to calculate quantum mechanical electronic structure by equations involving the electronic density.