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| ||1626: Marino Ghetaldi dies ... mathematician and physicist.
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| ||1755: James Parkinson born ... surgeon, geologist, and paleontologist.
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| File:Jean-André Lepaute.jpg|link=Jean-André Lepaute (nonfiction)|1789: Clockmaker [[Jean-André Lepaute (nonfiction)|Jean-André Lepaute]] dies. He was an innovator, introducing numerous improvements in clockmaking, especially his pin-wheel escapement, and his clockworks in which the gears are all in the horizontal plane. | | File:Jean-André Lepaute.jpg|link=Jean-André Lepaute (nonfiction)|1789: Clockmaker [[Jean-André Lepaute (nonfiction)|Jean-André Lepaute]] dies. He was an innovator, introducing numerous improvements in clockmaking, especially his pin-wheel escapement, and his clockworks in which the gears are all in the horizontal plane. |
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| ||1798: Macedonio Melloni born ... physicist and academic. | | File:Macedonio_Melloni.jpg|link=Macedonio Melloni (nonfiction)|1798: Physicist and academic [[Macedonio Melloni (nonfiction)|Macedonio Melloni]] born. Melloni will demonstrate that radiant heat has physical properties similar to those of light. |
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| ||1804: Otto Linné Erdmann born ... chemist. | |
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| ||1810: Thomas Hornsby born ... astronomer and mathematician.
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| ||1820: Karl Hermann Knoblauch born ... physicist. He is most notable for his studies of radiant heat. He was one of the six founding members of the Deutsche Physikalische Gesellschaft at Berlin on 14 January 1845. Pic.
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| ||1862: William Wallace Campbell dies ... astronomer and academic (d. 1938)
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| ||1854: John Park Finley born ... meteorologist and Army Signal Service officer who was the first person to study tornadoes intensively. He also wrote the first known book on the subject as well as many other manuals and booklets, collected vast climatological data, set up a nationwide weather observer network, started one of the first private weather enterprises, and opened an early aviation weather school. Pic. | |
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| ||1869: Otto Linné Erdmann dies ... chemist.
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| ||1875: Samuel Heinrich Schwabe dies ... astronomer remembered for his work on sunspots.
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| ||1894: Mathematician Paul Finsler born. Finsler spaces will be named after him by Élie Cartan in 1934. The Hadwiger–Finsler inequality, a relation between the side lengths and area of a triangle in the Euclidean plane, is named after Finsler and his co-author Hugo Hadwiger, as is the Finsler–Hadwiger theorem on a square derived from two other squares that share a vertex. Pic: https://neurosophie.wordpress.com/2015/03/22/paul-finsler-und-eine-welt-ohne-widerspruche/
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| ||1895: Julius Lothar Meyer dies ... chemist.
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| ||1899: Percy Lavon Julian born ... chemist and academic.
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| ||1901: Donald Howard Menzel born ... one of the first theoretical astronomers and astrophysicists in the United States. He discovered the physical properties of the solar chromosphere, the chemistry of stars, the atmosphere of Mars, and the nature of gaseous nebulae. Pic.
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| ||1904: Alberto González Domínguez born ... mathematician working on analysis, probability theory and quantum field theory.
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| ||1904: Philip Hall born ... mathematician. His major work was on group theory, notably on finite groups and solvable groups.
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| ||1908: Christian Gustav Adolph Mayer dies ... mathematician. He did research on differential equations, the calculus of variations and mechanics. Pic.
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| ||1908: Henry Bird dies ... chess player and author.
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| File:Tesla with ray gun.jpg|link=Nikola Tesla|1913: Physicist, inventor, and crime-fighter [[Nikola Tesla]] uses polyphase alternating current technology to detect and prevent [[crimes against physical constants]].
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| File:Dorothy Lewis Bernstein.jpg|link=Dorothy Lewis Bernstein (nonfiction)|1914: Mathematician [[Dorothy Lewis Bernstein (nonfiction)|Dorothy Lewis Bernstein]] born. She will be the first woman to be elected president of the Mathematics Association of America. | | File:Dorothy Lewis Bernstein.jpg|link=Dorothy Lewis Bernstein (nonfiction)|1914: Mathematician [[Dorothy Lewis Bernstein (nonfiction)|Dorothy Lewis Bernstein]] born. She will be the first woman to be elected president of the Mathematics Association of America. |
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| ||1917: Clement Markert born ... biologist credited with the discovery of isozymes (different forms of enzymes that catalyze the same reaction). Refused to testify before HUAC. Pic: https://d.lib.ncsu.edu/collections/catalog/0226899#?c=0&m=0&s=0&cv=0&z=-2153.0367%2C1291.2491%2C7243.7893%2C4105.7099
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| ||1921: Leo Moser born ... mathematician, best known for his polygon notation.
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| File:Scrimshaw binge residue.jpg|link=Scrimshaw abuse|1923: Outbreak of [[Scrimshaw abuse]] in Seattle and Portland blamed on new class of [[crimes against mathematical constants]].
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| ||1926: Karl Rebane born ... physicist and academic.
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| ||1947: Lev Bulat born ... physicist and academic.
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| File:Kashmir Princess.jpg|link=Kashmir Princess bombing (nonfiction)|1955: The Air India [[Kashmir Princess bombing (nonfiction)|Kashmir Princess]] is bombed and crashes in a failed assassination attempt on Zhou Enlai.
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| File:The Eel Escapes Hydrolab.jpg|link=The Eel Escapes Hydrolab|1956: Art critic and alleged supervillain [[The Eel]] escapes from [[The Nacreum]], says he has been framed for crimes he did not commit by the enemies of Cornelius Drebbel.
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| ||1961: The trial of Adolf Eichmann begins in Jerusalem.
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| File:Nakaya Ukichiro in 1946.jpg|link=Ukichiro Nakaya (nonfiction)|1962: Physicist and academic [[Ukichiro Nakaya (nonfiction)|Ukichiro Nakaya]] dies. He created the first artificial snowflakes. | | File:Nakaya Ukichiro in 1946.jpg|link=Ukichiro Nakaya (nonfiction)|1962: Physicist and academic [[Ukichiro Nakaya (nonfiction)|Ukichiro Nakaya]] dies. He created the first artificial snowflakes. |
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| ||1970: Apollo 13 is launched.
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| ||1974: Abraham Robinson dies ... mathematician who is most widely known for development of non-standard analysis, a mathematically rigorous system whereby infinitesimal and infinite numbers were reincorporated into modern mathematics. Nearly half of Robinson's papers were in applied mathematics rather than in pure mathematics. Pic.
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| ||1977: Mauro Picone dies ... mathematician. He is known for the Picone identity, and the Sturm-Picone comparison theorem. He was also an outstanding teacher of mathematical analysis: some of the best Italian mathematicians were among his pupils. Pic.
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| ||1979: Siegfried Knemeyer dies ... German aeronautical engineer, aviator and the Head of Technical Development at the Reich Ministry of Aviation of Nazi Germany during World War II. Pic.
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| File:Viking orbiter.jpg|link=Viking 2 (nonfiction)|1980: Viking program: After operating on the surface of Mars for 1316 days (1281 sols), the [[Viking 2 (nonfiction)|Viking 2]] lander is turned off when its batteries fail. | | File:Viking orbiter.jpg|link=Viking 2 (nonfiction)|1980: Viking program: After operating on the surface of Mars for 1316 days (1281 sols), the [[Viking 2 (nonfiction)|Viking 2]] lander is turned off when its batteries fail. |
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| ||1987: Primo Levi dies ... chemist and author.
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| ||1990: Customs officers in Middlesbrough, England, seize what they believe to be the barrel of a massive gun on a ship bound for Iraq.
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| ||1991: Ivar Waller dies ... professor of theoretical physics at Uppsala University. He developed the theory of X-ray scattering by lattice vibrations of a crystal, building upon the prior work of Peter Debye. Pic.
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| File:Venus Express in orbit.jpg|link=Venus Express (nonfiction)|2006: The [[Venus Express (nonfiction)|Venus Express]] spacecraft arrives at Venus after 153 days of journey, and begins continuously sending back science data from its polar orbit around Venus.
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| ||2003: Cecil Howard Green dies ... geophysicist and businessman, founded Texas Instruments.
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| ||2006: Iranian president Mahmoud Ahmadinejad announces Iran's claim to have successfully enriched uranium.
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| File:Dennis_Paulson_of_Mars.jpg|link=Dennis Paulson of Mars|2017: [[Dennis Paulson of Mars|Dennis Paulson]] calls for a moment of silence in recognition of the thirty-seventh anniversary of NASA switching off the [[Viking 2 (nonfiction)|Viking 2]] spacecraft. | | File:Dennis_Paulson_of_Mars.jpg|link=Dennis Paulson of Mars|2017: [[Dennis Paulson of Mars|Dennis Paulson]] calls for a moment of silence in recognition of the thirty-seventh anniversary of NASA switching off the [[Viking 2 (nonfiction)|Viking 2]] spacecraft. |
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