Template:Selected anniversaries/October 9: Difference between revisions
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||1807: Giovanni Francesco Giuseppe Malfatti, also known as Gian Francesco or Gianfrancesco, dies ... mathematician. Pic. | ||1807: Giovanni Francesco Giuseppe Malfatti, also known as Gian Francesco or Gianfrancesco, dies ... mathematician. Pic. | ||
||1811: Luddite riots began in Nottingham, England. There was poverty and misery, made worse by the new inventions - machinery which could do jobs better and faster than people. In those days of low wages and the ever-present threat of actual starvation should those wages stop for any reason, these innovations must have made the prospect even more gloomy. There were food shortages resulting from the Napoleonic Wars, and high unemployment. A group of laborers attacked a factory, breaking up 63 stocking and lace manufacturing frames, the machines which they feared would replace them. During the next three weeks gangs of upwards of fifty men, armed with pistols, guns and heavy hammers broke two hundred more frames. | |||
||1837: Francis Wayland Parker born ... theorist and academic. | ||1837: Francis Wayland Parker born ... theorist and academic. | ||
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||1959: Henry Thomas Tizard dies ... chemist, inventor and Rector of Imperial College, who developed the modern "octane rating" used to classify petrol, helped develop radar in World War II, and led the first serious studies of UFOs. Pic: https://www.todayinsci.com/8/8_23.htm | ||1959: Henry Thomas Tizard dies ... chemist, inventor and Rector of Imperial College, who developed the modern "octane rating" used to classify petrol, helped develop radar in World War II, and led the first serious studies of UFOs. Pic: https://www.todayinsci.com/8/8_23.htm | ||
||1960: Pioneer V was launched from Cape Canaveral, Florida, in one of the first in-depth attempts to study the solar system. The spacecraft was carried into space on a Thor-Able three stage rocket. It was a beach ball sized spacecraft equipped with four paddle like solar cells that recharged the on-board batteries that provided electrical power. Pioneer V entered an orbit around the Sun between Earth and Venus. It provided a wealth of new data on interplanetary space including measurements of magnetic fields, cosmic radiation, electrical fields and micrometeorites. It was stabilized by slowly spinning about its axis. The spacecraft transmitted information until 26 Jun 1960 when it was 22.5 million miles (36 million km) from Earth. | |||
||1962: Milan Vidmar dies ... chess player and engineer. | ||1962: Milan Vidmar dies ... chess player and engineer. | ||
Revision as of 08:43, 9 October 2018
1581: Mathematician and linguist Claude Gaspard Bachet de Méziriac born. He will do work in number theory and find a method of constructing magic squares.
1582: Astronomer and mathematician Michael Maestlin uses Copernican system of the solar system to predict imminent outbreak of crimes against mathematical constants.
1775: A paper by Leonhard Euler, Speculationes circa quasdam insignes proprietates numerorum, was presented at the Saint-Petersburg Academy. In this paper, he revisits the idea that has come to be called Euler's Phi function. He first introduced the idea to the Academy on Oct 15,1759 but did not include a symbol or name. Euler defined the function as "the multitude of numbers less than D, and which have no common divisor with it." (This is slightly different than the current definition which used Greatest Common Divisor is one).
1859: Alfred Dreyfus born. He will be wrongly convicted of treason during the Dreyfus affair.
1903: "Fightin'" Bert Russell agrees to fight three rounds of bare-knuckled boxing at World Peace Conference.
1918: CIA officer and author E. Howard Hunt born. Along with G. Gordon Liddy, Hunt will plot the Watergate burglaries and other undercover operations for the Nixon administration.
1948: Mathematician Joseph Wedderburn dies. He made significant contributions to algebra, proving that a finite division algebra is a field, and proving part of the Artin–Wedderburn theorem on simple algebras.
2016: Purple Racer voted Picture of the Day by the citizens of New Minneapolis, Canada.
2017: Artificial intelligence based on the Golden ratio develops genuine gratitude for Michael Maestlin's approximation of the Golden ratio.
