Template:Selected anniversaries/February 12: Difference between revisions
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||1538: Albrecht Altdorfer dies ... painter, engraver, and architect. No DOB. Pic. | |||
||1538: Albrecht Altdorfer dies ... painter, engraver, and architect. | |||
||1535: During the night of February 12–13 Tartaglia discovered a method of solving cubic equations that enables him to beat Fiore in a contest. [B. L. van der Waerden in the film, “The Great Art: Solving Equations”] *VFR https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-12.html Pic. | ||1535: During the night of February 12–13 Tartaglia discovered a method of solving cubic equations that enables him to beat Fiore in a contest. [B. L. van der Waerden in the film, “The Great Art: Solving Equations”] *VFR https://pballew.blogspot.com/2019/02/on-this-day-in-math-february-12.html Pic. | ||
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||1612: Jodocus Hondius dies ... cartographer. Pic. | ||1612: Jodocus Hondius dies ... cartographer. Pic. | ||
||1624: George Heriot dies ... goldsmith and philanthropist, founded George Heriot's School. | ||1624: George Heriot dies ... goldsmith and philanthropist, founded George Heriot's School. Pic. | ||
||1637: Jan Swammerdam born ... biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect—egg, larva, pupa, and adult—are different forms of the same animal. Pic. | ||1637: Jan Swammerdam born ... biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect—egg, larva, pupa, and adult—are different forms of the same animal. Pic. | ||
||1665: Rudolf Jakob Camerarius born ... botanist and physician. | ||1665: Rudolf Jakob Camerarius born ... botanist and physician ... one of the first workers to perform experiments in heredity. He contributed particularly toward establishing sexual differentiation in plants by identifying and defining the male (anther) and female (pistil) reproductive parts of the plant and also by describing their function in fertilization. He showed that pollen is required for this process. Pic. | ||
||1685: George Hadley born ... lawyer and amateur meteorologist who proposed the atmospheric mechanism by which the trade winds are sustained, which is now named in his honour as Hadley circulation. No pic online. | ||1685: George Hadley born ... lawyer and amateur meteorologist who proposed the atmospheric mechanism by which the trade winds are sustained, which is now named in his honour as Hadley circulation. No pic online. | ||
Revision as of 18:57, 27 February 2019
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.
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.
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 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.