Template:Selected anniversaries/August 20: Difference between revisions
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||1936: Edward Weston dies ... American chemist noted for his achievements in electroplating and his development of the electrochemical cell, named the Weston cell, for the voltage standard. Pic. | ||1936: Edward Weston dies ... American chemist noted for his achievements in electroplating and his development of the electrochemical cell, named the Weston cell, for the voltage standard. Pic. | ||
File:Plutonium pellet.jpg|link=Plutonium (nonfiction)|1942: The first visible quantity of a [[Plutonium (nonfiction)|plutonium compound]], plutonium(IV) iodate, is isolated by nuclear chemists Burris Cunningham and Louis Werner. | |||
||1944: Leon Chwistek dies ... avant-garde painter, theoretician of modern art, literary critic, logician, philosopher and mathematician. | ||1944: Leon Chwistek dies ... avant-garde painter, theoretician of modern art, literary critic, logician, philosopher and mathematician. |
Revision as of 07:02, 20 August 2018
1672: Mathematician and politician Johan de Witt dies in a riot. The rioters will partially eat his body.
1911: The first cable message sent around the world from the U.S. by commercial telegraph was transmitted from New York City. It read “This message sent around the world,” left the New York Times building at 7:00 pm and was received at 7:16 pm after travelling nearly 29,000 miles through 16 relays via the Azores, Gibraltar, India, Phillipines, Midway, Guam, Hawaii and San Francisco.
1912: Thomas Edison receives U.S. patent No. 1036470 for a “Phonographic Apparatus,” and No. 1036471 for a “Storage Battery.”
1923: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.
1942: The first visible quantity of a plutonium compound, plutonium(IV) iodate, is isolated by nuclear chemists Burris Cunningham and Louis Werner.
1961: Physicist and academic Percy Williams Bridgman dies. He won the 1946 Nobel Prize in Physics for his work on the physics of high pressures.
1962: Mathematician and crime-fighter Alice Beta publishes new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.