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| || *** DONE: Pics ***
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| || *** DONE: Pat's Blog ***
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| File:Julius_Caesar_-_Tusculum_portrait.jpg|link=Julius Caesar (nonfiction)|44 BC: [[Julius Caesar (nonfiction)|Julius Caesar]], Dictator of the Roman Republic, is stabbed to death by Marcus Junius Brutus, Gaius Cassius Longinus, Decimus Junius Brutus, and several other Roman senators on the Ides of March. | | File:Julius_Caesar_-_Tusculum_portrait.jpg|link=Julius Caesar (nonfiction)|44 BC: [[Julius Caesar (nonfiction)|Julius Caesar]], Dictator of the Roman Republic, is stabbed to death by Marcus Junius Brutus, Gaius Cassius Longinus, Decimus Junius Brutus, and several other Roman senators on the Ides of March. |
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| File:Martin Waldseemüller.jpg|link=Martin Waldseemüller (nonfiction)|1519: Mapmaker [[Martin Waldseemüller (nonfiction)|Martin Waldseemüller]] publishes new edition of ''Universalis Cosmographia'' which accuses [[Egon Rhodomunde]] of commissioning [[crimes against cartography]].
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| File:Johannes Kepler 1610.jpg|link=Johannes Kepler (nonfiction)|1612: Mathematician [[Johannes Kepler (nonfiction)|Johannes Kepler]] uses astrological forecasts to predict and prevent [[crimes against mathematical constants]].
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| ||1713: Nicolas Louis de Lacaille please ... priest, astronomer, and academic. He named 15 out of the 88 constellations. Pic.
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| ||1758: The earliest date in the prediction of the return of Halley's comet by the team of Clairaut, La Lande and Lepaute. After incremental computations of the gravitational influences and motion of Jupiter and Saturn on the predicted return of Halley's comet, Alexis-Claude Clairaut presents the results to the Academies de Sciences. The computational work of the team of Clairaut, with La Lande and Nicole-Reine Lepaute, (having removed Saturn from the last few months calculations to speed the results) had predicted a window of arrival between March 15 and May 15 (1758). The unruly comet reached perihelion on the 13th of March. *David A Grier, When Computers Were Human https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html Pics
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| ||1783: In an emotional speech in Newburgh, New York, George Washington asks his officers not to support the Newburgh Conspiracy. The plea is successful and the threatened coup d'état never takes place.
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| ||1806: A six kilogram chondritemeteorite - carrying carbon-based, organic chemicals - was unequivocally identified for the first time. Its arrival on earth was noted at 5:30 pm, outside Alais, France. The organic chemicals it carried suggested the possibility of life on whatever body was the source, somewhere in the universe. According to the observations of Berzelius and a commission appointed by the French Academy it "emits a faint bituminous substance" when heated. Berzelius reported his analysis of the Alais meteorite in 1833 that destructive distillation yielded a blackish substance, indiginous water, carbon dioxide gas, a soluble salt containing ammonia, and a blackish-brown sublimate, which Berzelius confessed was unknown to him. *TIS https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html
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| ||1819: French physicist Augustin-Jean Fresnel wins a contest at the Academie des Sciences in Paris by proving that light behaves like a wave. The Fresnel integrals, still used to calculate wave patterns, silence skeptics who had backed the particle theory of Isaac Newton. Pic.
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| ||1821: Johann Josef Loschmidt born ... physicist and chemist. Pic.
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| ||1855: Charles Vernon Boys born ... physicist, known for his careful and innovative experimental work. Pic (tech).
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| ||1860: Waldemar Haffkine born ... bacteriologist and microbiologist. Pic.
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| ||1860: Raphael Weldon born ... evolutionary biologist and a founder of biometry. Pic.
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| ||1866: Johan Vaaler born ... inventor, invented the paper clip. Pic.
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| ||1868: Mathematician Grace Chisholm Young born. She will contribute measurable functions to the Denjoy–Young–Saks theorem, which gives some possibilities for the Dini derivatives of a function that hold almost everywhere. Pic.
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| ||1871: James Clerk Maxwell in a letter to C. J. Monro comments on the fourth dimension, "The peculiarity of our space is that of its three dimensions, none is before or after another. As is x, so is y, and so is z." Later in the same message he adds, "I am quite sure that the kind of continuity which has four dimensions all co-equal is not to be discovered by merely generalizing Cartesian space equations." Alfred M. Bork, The Fourth Dimensions in Ninetenth-Century Physics, Isis, Sept. 1964, pg 326-338 Matt Parkers fun book on the Fourth Dimension https://en.wikipedia.org/wiki/Four-dimensional_space Pics
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| ||1877: Innocenzo Manzetti dies ... inventor. Pic.
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| ||1890: Boris Delaunay born ... mathematician and mountaineer. Pic.
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| ||1891: Joseph Bazalgette dies ... engineer and academic. Pic search, try library: https://www.google.com/search?q=joseph+bazalgette
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| File:James Joseph Sylvester.jpg|link=James Joseph Sylvester (nonfiction)|1897: Mathematician and academic [[James Joseph Sylvester (nonfiction)|James Joseph Sylvester]] dies. He made fundamental contributions to matrix theory, invariant theory, number theory, partition theory, and combinatorics. | | File:James Joseph Sylvester.jpg|link=James Joseph Sylvester (nonfiction)|1897: Mathematician and academic [[James Joseph Sylvester (nonfiction)|James Joseph Sylvester]] dies. He made fundamental contributions to matrix theory, invariant theory, number theory, partition theory, and combinatorics. |
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| ||1898: Henry Bessemer dies ... engineer and businessman ... his steel-making process would become the most important technique for making steel in the nineteenth century for almost one hundred years. Pic.
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| File:Elwin_Bruno_Christoffel.jpg|link=Elwin Bruno Christoffel (nonfiction)|1900: Mathematician and physicist [[Elwin Bruno Christoffel (nonfiction)|Elwin Bruno Christoffel]] dies. He introduced fundamental concepts of differential geometry, opening the way for the development of tensor calculus, later providing the mathematical basis for general relativity. | | File:Elwin_Bruno_Christoffel.jpg|link=Elwin Bruno Christoffel (nonfiction)|1900: Mathematician and physicist [[Elwin Bruno Christoffel (nonfiction)|Elwin Bruno Christoffel]] dies. He introduced fundamental concepts of differential geometry, opening the way for the development of tensor calculus, later providing the mathematical basis for general relativity. |
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| File:Heike Kamerlingh Onnes.jpg|link=Heike Kamerlingh Onnes (nonfiction)|1911: Physicist and crime-fighter [[Heike Kamerlingh Onnes (nonfiction)|Heike Kamerlingh Onnes]] uses liquid helium to freeze supervillain [[Neptune Slaughter]]. | | File:You Can Make It If You Try - Sly Stone.jpg|1943: Sylvester Stewart born. Better known by his stage name Sly Stone, he is an American musician, songwriter, and record producer who is most famous for his role as front man for Sly and the Family Stone, playing a critical role in the development of soul, funk, rock, and psychedelia in the 1960s and 1970s. |
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| File:Cesare_Arzelà.jpg|link=Cesare Arzelà (nonfiction)|1912: Mathematician [[Cesare Arzelà (nonfiction)|Cesare Arzelà]] dies. He contributed to the theory of functions, notably his characterization of sequences of continuous functions.
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| ||1924: Aldo Andreotti born ... mathematician who worked on algebraic geometry, on the theory of functions of several complex variables and on partial differential operators. Notably he proved the Andreotti–Frankel theorem, the Andreotti–Grauert theorem, the Andreotti–Vesentini theorem and introduced, jointly with François Norguet, the Andreotti–Norguet integral representation for functions of several complex variables. Pic.
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| ||1930: Zhores Alferov, Belarusian-Russian physicist and academic, Nobel Prize laureate (alive August 2018). Pic.
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| ||1930: Martin Karplus born ... chemist and academic, Nobel Prize laureate (alive August 2018). Pic.
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| ||1933: Winston Churchill was very interested in science and wrote often and popularly on the subject. He chaired a conference in on the atomic discoveries in the Cavendish Laboratory in Cambridge. On this date his scientific friend, Frederick Lindemann said of him, "All the qualities … of the scientist are manifest in him. The readiness to face realities, even though they contradict a favourite hypothesis; the recognition that theories are made to fit facts, not facts to fit the theories; the interest in phenomena and the desire to explore them, and above all the underlying conviction that the world is not just a jumble of events but that there must be some higher unity." *Graham Farmelo, Churchills Bomb https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html
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| ||1951: John S. Paraskevopoulos dies ... astronomer and academic. His goal -- building a large telescope in Greece -- was never realized, due to the war between Greece and Turkey. Pic.
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| ||1955: Michele Angelo Besso dies ... engineer. Besso was a close friend of Albert Einstein. who called Besso "the best sounding board in Europe" for scientific ideas. Pic search yes: https://www.google.com/search?q=michele+angelo+besso
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| ||1955: John von Neumann sworn in as one of the first Atomic Energy Commissioners. In August he learned that he had bone cancer. *Goldstein, The Computer from Pascal to von Neumann. https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html Pic.
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| ||1960: Eduard Čech (Cech) dies ... mathematician born in Stračov (then Bohemia, Austria-Hungary, now Czech Republic). His research interests included projective differential geometry and topology. He is especially known for the technique known as Stone–Čech compactification (in topology) and the notion of Čech cohomology. Pic.
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| File:Arthur Compton 1927.jpg|link=Arthur Compton (nonfiction)|1962: American physicist and academic [[Arthur Compton (nonfiction)|Arthur Compton]] dies. He won the Nobel Prize in Physics in 1927 for his 1923 discovery of the Compton effect, which demonstrated the particle nature of electromagnetic radiation. | | File:Arthur Compton 1927.jpg|link=Arthur Compton (nonfiction)|1962: American physicist and academic [[Arthur Compton (nonfiction)|Arthur Compton]] dies. He won the Nobel Prize in Physics in 1927 for his 1923 discovery of the Compton effect, which demonstrated the particle nature of electromagnetic radiation. |
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| File:Venera 7.jpg|link=Venera 7 (nonfiction)|1970: Soviet spacecraft [[Venera 7 (nonfiction)|Venera 7]] detects evidence of [[Crimes against astronomical constants|crimes against interstellar constants]].
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| ||1985: The first Internet domain name is registered (symbolics.com).
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| ||1988: Dmitri Polyakov dies ... general and spy. Polyakov revealed Soviet secrets to the FBI and the Central Intelligence Agency. Pic search good: https://www.google.com/search?q=dmitri+polyakov
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| ||1909: Deane Montgomery dies ... mathematician specializing in topology who was one of the contributors to the final resolution of Hilbert's fifth problem. Born in the small town of Weaver, Minnesota. Pic.
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| ||1993: Gustav Hedlund dies ... mathematician, was one of the founders of symbolic and topological dynamics. Pic.
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| ||1996: Francis Joseph Murray dies ... mathematician, known for his foundational work (with John von Neumann) on functional analysis, and what subsequently became known as von Neumann algebras. Pic search: https://www.google.com/search?q=Francis+Joseph+Murray
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| ||2004: Bill Pickering dies ... scientist and engineer ... headed the Jet Propulsion Laboratory (JPL) for 22 years. Pickering was a senior NASA luminary who pioneered the exploration of space. Pic.
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| ||2004: John Pople dies ... chemist and academic, Nobel Prize laureate. Pic.
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| ||2006: George Whitelaw Mackey dies ... mathematician. Mackey was one of the pioneer workers in the intersection of quantum logic, the theory of infinite-dimensional unitary representations of groups, the theory of operator algebras and noncommutative geometry. Pic.
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| ||2013: James Bonk dies ... chemist and academic. Bonk taught chemistry courses for over 50 years, primarily at Duke University; he also wrote his own textbooks and laboratory manuals. Pic search good: https://www.google.com/search?q=james+bonk
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| ||2015: Valentine Joseph dies ... mathematician, noted for his contributions to education. Pic.
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| File:Three Kings 3.jpg|link=Three Kings 3 (nonfiction)|2016: ''[[Three Kings 3 (nonfiction)|Three Kings 3 ]]'' declared Picture of the Day by the citizens of [[New Minneapolis, Canada]].
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