Template:Selected anniversaries/December 23: Difference between revisions
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||1968: The 82 sailors from the USS ''Pueblo'' are released after eleven months of internment in North Korea. | ||1968: The 82 sailors from the USS ''Pueblo'' are released after eleven months of internment in North Korea. | ||
||1971: Hugh Rose Foss born ... cryptanalyst. At Bletchley Park during World War II he made significant contributions both to the breaking of the German Enigma code and headed the section tasked with breaking Japanese Naval codes. Pic search | ||1971: Hugh Rose Foss born ... cryptanalyst. At Bletchley Park during World War II he made significant contributions both to the breaking of the German Enigma code and headed the section tasked with breaking Japanese Naval codes. Pic search. | ||
||1972: Andrei Tupolev dies ... engineer, designed the Tupolev Tu-95 and Tupolev Tu-104. Pic. | ||1972: Andrei Tupolev dies ... engineer, designed the Tupolev Tu-95 and Tupolev Tu-104. Pic. | ||
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||1989: Richard Rado dies ... mathematician whose research concerned combinatorics and graph theory. In graph theory, the Rado graph, a countably infinite graph containing all countably infinite graphs as induced subgraphs, is named after Rado. He rediscovered it in 1964 after previous works on the same graph by Wilhelm Ackermann, Paul Erdős, and Alfréd Rényi. Pic. | ||1989: Richard Rado dies ... mathematician whose research concerned combinatorics and graph theory. In graph theory, the Rado graph, a countably infinite graph containing all countably infinite graphs as induced subgraphs, is named after Rado. He rediscovered it in 1964 after previous works on the same graph by Wilhelm Ackermann, Paul Erdős, and Alfréd Rényi. Pic. | ||
||1992: Robert Marshak dies ... American physicist dedicated to learning, research, and education. Pic. | |||
||2001: Donald Clayton Spencer dies ... mathematician, known for work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. Pic: https://www.geni.com/people/Donald-Spencer/6000000000566571886 | ||2001: Donald Clayton Spencer dies ... mathematician, known for work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. Pic: https://www.geni.com/people/Donald-Spencer/6000000000566571886 | ||
Revision as of 18:38, 23 October 2020
1722: Mathematician and academic Pierre Varignon dies. He simplified the proofs of many propositions in mechanics, adapted Leibniz's calculus to the inertial mechanics of Newton's Principia, and treated mechanics in terms of the composition of forces.
1822: Inventor and engineer Wilhelm Bauer born. He will design and invent submarines.
1933: Mathematician Rikitarō Fujisawa dies. During the Meiji era he was instrumental in reforming mathematics education in Japan and establishing the ideas of European mathematics in Japan.
1948: Mathematician Wilhelm Ackermann publishes his research on applications of the Ackermann function to detecting and preventing crimes against mathematical constants.
2016: Signed first edition of Blue City Sunset purchased for an undisclosed amount by "a well-known Gnomon algorithm theorist residing in New Minneapolis, Canada."