Template:Selected anniversaries/February 12: Difference between revisions
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||1831: A solar eclipse was visible across much of the United States. This eclipse was instrumental in a slave uprising led by Nat Turner. He witnessed this eclipse and took it as a sign from God to begin an insurrection against slave holders. https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-12.html | ||1831: A solar eclipse was visible across much of the United States. This eclipse was instrumental in a slave uprising led by Nat Turner. He witnessed this eclipse and took it as a sign from God to begin an insurrection against slave holders. https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-12.html | ||
||1841: Astley Paston Cooper, 1st Baronet dies ... surgeon and anatomist, who made historical contributions to otology, vascular surgery, the anatomy and pathology of the mammary glands and testicles, and the pathology and surgery of hernia. | ||1841: Astley Paston Cooper, 1st Baronet dies ... surgeon and anatomist, who made historical contributions to otology, vascular surgery, the anatomy and pathology of the mammary glands and testicles, and the pathology and surgery of hernia. Pic. | ||
||1851: Edward Hargraves announces he has found gold in Bathurst, New South Wales, Australia, starting the Australian gold rushes. | ||1851: Edward Hargraves announces he has found gold in Bathurst, New South Wales, Australia, starting the Australian gold rushes. Pic: grand painting. Edward Hammond Hargraves (7 October 1816 – 29 October 1891). | ||
||1857: Meteorologist William Charles Redfield dies ... known for his observation of the directionality of winds in hurricanes (being among the first to propose that hurricanes are large circular vortexes (John Farrar had made similar observations six years earlier) ... He was the first president of the American Association for the Advancement of Science (1843). Pic. | ||1857: Meteorologist William Charles Redfield dies ... known for his observation of the directionality of winds in hurricanes (being among the first to propose that hurricanes are large circular vortexes (John Farrar had made similar observations six years earlier) ... He was the first president of the American Association for the Advancement of Science (1843). Pic. | ||
||1861: Lou Andreas-Salomé born ... psychoanalyst and author. | ||1861: Lou Andreas-Salomé born ... psychoanalyst and author. Pic. | ||
||1877: Louis Renault born ... engineer and businessman, co-founded Renault. | ||1877: Louis Renault born ... engineer and businessman, co-founded Renault. Pic. | ||
||1886: Max Bergmann born ... biochemist. He was the first to use the Carboxybenzyl protecting group for the synthesis of oligopeptides. | ||1886: Max Bergmann born ... biochemist. He was the first to use the Carboxybenzyl protecting group for the synthesis of oligopeptides. | ||
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||1909: Sigmund Rascher dies ... German physician - SS deadly experiments. Pic search yes: https://www.google.com/search?&q=sigmund+rascher | ||1909: Sigmund Rascher dies ... German physician - SS deadly experiments. Pic search yes: https://www.google.com/search?&q=sigmund+rascher | ||
File:Hans Hermes.jpg|link=Hans Hermes (nonfiction)|1912: Mathematician and logician [[Hans Hermes (nonfiction)|Hans Hermes]] born. Hermes will contribute to the foundations of mathematical logic | File:Hans Hermes.jpg|link=Hans Hermes (nonfiction)|1912: Mathematician and logician [[Hans Hermes (nonfiction)|Hans Hermes]] born. Hermes will contribute to the foundations of mathematical logic, and pioneer the concept of the Turing machine as a measure of predictability. | ||
File:Hanna Neumann.jpg|link=Hanna Neumann (nonfiction)|1914: Mathematician and academic [[Hanna Neumann (nonfiction)|Hanna Neumann]] born. She will contribute to [[Group theory (nonfiction)|group theory]], co-authoring the important paper ''Wreath products and varieties of groups'' (with her husband Bernhard and eldest son Peter), and authoring the influential book ''Varieties of Groups'' (1967). | File:Hanna Neumann.jpg|link=Hanna Neumann (nonfiction)|1914: Mathematician and academic [[Hanna Neumann (nonfiction)|Hanna Neumann]] born. She will contribute to [[Group theory (nonfiction)|group theory]], co-authoring the important paper ''Wreath products and varieties of groups'' (with her husband Bernhard and eldest son Peter), and authoring the influential book ''Varieties of Groups'' (1967). | ||
Revision as of 09:55, 12 February 2020
1767: Polymath Roger Joseph Boscovich publishes new class of Gnomon algorithm functions which detect and prevent a cross-linked set of crimes against physics, astronomy, and mathematics.
1912: Mathematician and logician Hans Hermes born. Hermes will contribute to the foundations of mathematical logic, and pioneer the concept of the Turing machine as a measure of predictability.
1914: Mathematician and academic Hanna Neumann born. She will contribute to group theory, co-authoring the important paper Wreath products and varieties of groups (with her husband Bernhard and eldest son Peter), and authoring the influential book Varieties of Groups (1967).
1916: Mathematician, philosopher, and academic Richard Dedekind dies. He made important contributions to abstract algebra (particularly ring theory), algebraic number theory and the definition of the real numbers.
1934: Mathematician, philosopher, and private detective Jan Łukasiewicz uses the principle of non-contradiction and the law of excluded middle to defeat the Forbidden Ratio in single combat.
1935: Physicist and engineer Robert Jemison Van de Graaff receives a patent for his Electrostatic Generator design (U.S. No. 1,991,236), able to generate direct-current voltages much higher than the 700,000-V which was the state of the art at the time using other methods.
1946: Tunguska Event Preservation Society pledge drive meet goal, raises enough computational power to re-create the original event.
1947: Chemist and academic Moses Gomberg dies. He identified the triphenylmethyl radical, the first persistent radical to be discovered, and is thus known as the founder of radical chemistry.
1959: Singer, songwriter, multi-instrumentalist, and alleged criminal mastermind Skip Digits uses high-energy literature techniques to record his hit song "Clepsydra".
1960: Mathematician and statistician Oskar Anderson dies. He made important contributions to mathematical statistics and econometrics.
1961: Spacecraft Venera 1 launched. It will become the first man-made object to fly-by another planet by passing Venus (although it will lose contact with Earth and not send back any data).
1983: High-energy literature research project accidentally releases new class of crimes against mathematical constants.
- Charles Critchfield ID badge.gif
1994: Mathematical physicist Charles Critchfield dies. He worked on the Manhattan Project, designing and testing the "Urchin" neutron initiator which provided the burst of neutrons that kick-started the nuclear detonation of the Fat Man weapon.
2016: Steganographic analysis of Green Tangle reveals "at least a megabyte" of previously unknown Gnomon algorithm functions.