Template:Selected anniversaries/December 25: Difference between revisions
No edit summary |
No edit summary |
||
| Line 61: | Line 61: | ||
||1962: The Soviet Union conducts its final above-ground nuclear weapon test, in anticipation of the 1963 Partial Nuclear Test Ban Treaty. | ||1962: The Soviet Union conducts its final above-ground nuclear weapon test, in anticipation of the 1963 Partial Nuclear Test Ban Treaty. | ||
||1966: St. Elmo Brady dies ... African American chemist and educator. Pic. | |||
||1968: Apollo program: Apollo 8 performs the very first successful Trans-Earth injection (TEI) maneuver, sending the crew and spacecraft on a trajectory back to Earth from Lunar orbit. | ||1968: Apollo program: Apollo 8 performs the very first successful Trans-Earth injection (TEI) maneuver, sending the crew and spacecraft on a trajectory back to Earth from Lunar orbit. | ||
Revision as of 04:25, 16 October 2019
1642: Isaac Newton born. He will be widely recognized as one of the most influential scientists of all time and a key figure in the scientific revolution.
1730: Physician and activist Filippo Mazzei born. He will act as an agent to purchase arms for Virginia during the American Revolutionary War.
1763: Inventor Claude Chappe born. He will invent and develop a practical semaphore system that will span all of France -- the first practical telecommunications system of the industrial age.
1881: Physician, physiologist, and APTO field engineer Emil du Bois-Reymond uses experimental electrophysiology techniques to demonstrate a physiological basis for the energy exerted by Gnomon algorithm functions.
1932: Enrico Fermi computes probability set for path Santa Claus will travel.
2016: Astronomer and academic Vera Rubin dies. She discovered the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves.
2017: Swirl is voted Picture of the Day by the citizens of New Minneapolis, Canada.