Template:Selected anniversaries/October 20: Difference between revisions

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||1925: Theodore Hall born ...  American physicist and an atomic spy for the Soviet Union, who, during his work on US efforts to develop the first and second atomic bombs during World War II (the Manhattan Project), gave a detailed description of the "Fat Man" plutonium bomb, and of several processes for purifying plutonium, to Soviet intelligence. Pic.
||1925: Theodore Hall born ...  American physicist and an atomic spy for the Soviet Union, who, during his work on US efforts to develop the first and second atomic bombs during World War II (the Manhattan Project), gave a detailed description of the "Fat Man" plutonium bomb, and of several processes for purifying plutonium, to Soviet intelligence. Pic.
||1926: Eugene V. Debs dies ... union leader and politician. Pic.
||1926: Eugene V. Debs dies ... union leader and politician. Pic.
File:J._R._Oppenheimer.jpg|link=J. R. Oppenheimer|1947: Singer-physicist [[J. R. Oppenheimer]] writes a private letter to mathematician [[Alice Beta]] expressing his "growing certainty" that he will be censured by the [[House Un-American Activities Committee (nonfiction)|House Un-American Activities Committee]] for his song "Destroyer of Worlds" (bootleg copies of which have been circulating since the Trinity bomb test).


File:Chairman Dies of House Committee investigating Un-American activities.jpg|link=House Un-American Activities Committee (nonfiction)|1947: The [[House Un-American Activities Committee (nonfiction)|House Un-American Activities Committee]] begins its investigation into Communist infiltration of the cinema of the United States, resulting in a blacklist that prevents some from working in the industry for years.
File:Chairman Dies of House Committee investigating Un-American activities.jpg|link=House Un-American Activities Committee (nonfiction)|1947: The [[House Un-American Activities Committee (nonfiction)|House Un-American Activities Committee]] begins its investigation into Communist infiltration of the cinema of the United States, resulting in a blacklist that prevents some from working in the industry for years.
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||1953: Werner Baumbach dies ... German bomber pilot during World War II. He commanded the secret bomber wing Kampfgeschwader 200 (KG 200) of the Luftwaffe. Pic.
||1953: Werner Baumbach dies ... German bomber pilot during World War II. He commanded the secret bomber wing Kampfgeschwader 200 (KG 200) of the Luftwaffe. Pic.


File:Wacław Sierpiński.jpg|link=Wacław Sierpiński (nonfiction)|1960: Mathematician, academic, and [[APTO]] field engineer [[Wacław Sierpiński (nonfiction)|Wacław Sierpiński]] visits the [[Nested Radical]] coffeehouse, where he gives an impromptu lecture on how the Zermelo–Fraenkel set theory together with the Generalized continuum hypothesis implies the axiom of choice.
File:Saruman House - event hosting.jpg|link=Saruman House|1955: '''[[Saruman House]]''', a fortress commissioned by the corrupt wizard Saruman, opens for business as a conference center and secret lair.


||1961: The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.
||1961: The Soviet Union performs the first armed test of a submarine-launched ballistic missile, launching an R-13 from a Golf-class submarine.
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||2013: Alain Lascoux dies ... mathematician at the University of Marne la Vallée and Nankai University. His research was primarily in algebraic combinatorics, particularly Hecke algebras and Young tableaux.  Pic: http://www.cnrs.fr/ins2i/spip.php?article611
||2013: Alain Lascoux dies ... mathematician at the University of Marne la Vallée and Nankai University. His research was primarily in algebraic combinatorics, particularly Hecke algebras and Young tableaux.  Pic: http://www.cnrs.fr/ins2i/spip.php?article611
File:Creature_4.jpg|link=Creature 4 (nonfiction)|2018: Signed first edition of ''[[Creature 4 (nonfiction)|Creature 4]]'' stolen from the Louvre in daylight robbery by agents of the [[Forbidden Ratio]] gang.


||2018: BepiColombo launched ... a joint mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to the planet Mercury. The mission comprises two satellites launched together: the Mercury Planetary Orbiter (MPO) and Mio (Mercury Magnetospheric Orbiter, MMO). The mission will perform a comprehensive study of Mercury, including characterization of its magnetic field, magnetosphere, and both interior and surface structure. It was launched on 20 October 2018 at 01:45 UTC, with an arrival at Mercury planned for December 2025, after a flyby of Earth, two flybys of Venus, and six flybys of Mercury. Pic.
||2018: BepiColombo launched ... a joint mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to the planet Mercury. The mission comprises two satellites launched together: the Mercury Planetary Orbiter (MPO) and Mio (Mercury Magnetospheric Orbiter, MMO). The mission will perform a comprehensive study of Mercury, including characterization of its magnetic field, magnetosphere, and both interior and surface structure. It was launched on 20 October 2018 at 01:45 UTC, with an arrival at Mercury planned for December 2025, after a flyby of Earth, two flybys of Venus, and six flybys of Mercury. Pic.

Latest revision as of 10:37, 21 March 2022

  • 1631: Astronomer and mathematician Michael Maestlin dies. He was a mentor to Johannes Kepler, and played a sizable part in his adoption of the Copernican system.

    1631: Astronomer and mathematician Michael Maestlin dies. He was a mentor to Johannes Kepler, and played a sizable part in his adoption of the Copernican system.

  • 1947: The House Un-American Activities Committee begins its investigation into Communist infiltration of the cinema of the United States, resulting in a blacklist that prevents some from working in the industry for years.

    1947: The House Un-American Activities Committee begins its investigation into Communist infiltration of the cinema of the United States, resulting in a blacklist that prevents some from working in the industry for years.

  • 1947: Mathematician and Gnomon algorithm theorist Alice Beta publicly denounces the House Un-American Activities Committee as "an intolerable blight on free association, free speech, free thought, and freedom itself."

    1947: Mathematician and Gnomon algorithm theorist Alice Beta publicly denounces the House Un-American Activities Committee as "an intolerable blight on free association, free speech, free thought, and freedom itself."

  • 1955: Saruman House, a fortress commissioned by the corrupt wizard Saruman, opens for business as a conference center and secret lair.

    1955: Saruman House, a fortress commissioned by the corrupt wizard Saruman, opens for business as a conference center and secret lair.

  • 1987: Mathematician and academic Andrey Kolmogorov dies. Kolmogorov made pioneering contributions to the mathematics of probability theory, topology, intuitionistic logic, turbulence, classical mechanics, algorithmic information theory, and computational complexity.

    1987: Mathematician and academic Andrey Kolmogorov dies. Kolmogorov made pioneering contributions to the mathematics of probability theory, topology, intuitionistic logic, turbulence, classical mechanics, algorithmic information theory, and computational complexity.

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