Template:Selected anniversaries/April 9: Difference between revisions
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||1922: Traugott Sandmeyer dies ... chemist after whom the Sandmeyer reaction, which he discovered 1884, was named. Sandmeyer also invented a new synthesis for indigo. Pic. | ||1922: Traugott Sandmeyer dies ... chemist after whom the Sandmeyer reaction, which he discovered 1884, was named. Sandmeyer also invented a new synthesis for indigo. Pic. | ||
||1924: Milburn G. Apt born ... in 1956 he will become the first man to exceed Mach 3 while flying the Bell X-2. Shortly thereafter, the craft wil go out of control, killing Apt. Pic. | |||
||1930: F. Albert Cotton born ... chemist and academic ... recognized for his research on the chemistry of the transition metals. Pic search yes: https://www.google.com/search?q=F.+Albert+Cotton | ||1930: F. Albert Cotton born ... chemist and academic ... recognized for his research on the chemistry of the transition metals. Pic search yes: https://www.google.com/search?q=F.+Albert+Cotton | ||
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||1948: Jorge Eliécer Gaitán's assassination provokes a violent riot in Bogotá (the Bogotazo), and a further ten years of violence in Colombia. | ||1948: Jorge Eliécer Gaitán's assassination provokes a violent riot in Bogotá (the Bogotazo), and a further ten years of violence in Colombia. | ||
||1951: Vilhelm Bjerknes dies ... physicist and meteorologist. | ||1951: Vilhelm Bjerknes dies ... physicist and meteorologist. Pic. | ||
||1953: Hans Reichenbach dies ... as a leading philosopher of science, educator, and proponent of logical empiricism. He was influential in the areas of science, education, and of logical empiricism: he made lasting contributions to the study of empiricism based on a theory of probability; the logic and the philosophy of mathematics; space, time, and relativity theory; analysis of probabilistic reasoning; and quantum mechanics. | ||1953: Hans Reichenbach dies ... as a leading philosopher of science, educator, and proponent of logical empiricism. He was influential in the areas of science, education, and of logical empiricism: he made lasting contributions to the study of empiricism based on a theory of probability; the logic and the philosophy of mathematics; space, time, and relativity theory; analysis of probabilistic reasoning; and quantum mechanics. | ||
||1959: Frank Lloyd Wright dies ... architect, designed the Price Tower and Fallingwater. | ||1959: Frank Lloyd Wright dies ... architect, designed the Price Tower and Fallingwater. Pic. | ||
||1959: Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven". | ||1959: Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven". | ||
Revision as of 06:39, 27 September 2019
1770: Physicist and academic Thomas Johann Seebeck born. He will discover the thermoelectric effect.
1805: Mathematician and crime-fighter Joseph-Louis Lagrange delivers lecture on applications of number theory to the detection and prevention of crimes against mathematical constants.
1860: On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice. A visual recording of audio data, it will first be played back in 2008.
1864: Engineer and physicist Wilhelm Röntgen uses X-rays generator to expose loaded dice, reveals organized math crime cartel in casinos around the world.
1865: Mathematician and electrical engineer Charles Proteus Steinmetz born. He will foster the development of alternating current, formulating mathematical theories which will advance the expansion of the electric power industry in the United States.
1917: Mathematician and philosopher Georg Cantor publishes new theory of sets derived from Gnomon algorithm functions. Colleagues hail it as "a magisterial contribution to science and art of detecting and preventing crimes against mathematical constants."
1978: Musician and alleged math criminal Skip Digits performs at the Kennedy Center for the Arts.
2018: Green Tangle voted Picture of the Day by the citizens of New Minneapolis, Canada.