Template:Selected anniversaries/November 14: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 15: | Line 15: | ||
||1925 – Stirling Colgate, American physicist and academic (d. 2013) | ||1925 – Stirling Colgate, American physicist and academic (d. 2013) | ||
||Eldridge Reeves Johnson (d. November 14, 1945 in Moorestown, New Jersey) was an American businessman and engineer who founded the Victor Talking Machine Company and built it into the leading American producer of phonographs and phonograph records and one of the leading phonograph companies in the world at the time. | |||
||1967 – American physicist Theodore Maiman is given a patent for his ruby laser systems, the world's first laser. | ||1967 – American physicist Theodore Maiman is given a patent for his ruby laser systems, the world's first laser. | ||
Revision as of 14:13, 29 October 2017
1716: Mathematician and philosopher Gottfried Wilhelm Leibniz dies. He developed differential and integral calculus independently of Isaac Newton, and designed and built mechanical calculators.
1970: Famed illustration Six Seconds to Hell sells for two million dollars in charity auction to benefit victims of crimes against mathematical constants.
1971: Mariner 9 enters orbit around Mars. It will map 70% of the surface, and study temporal changes in the atmosphere and surface.
2017: Dennis Paulson celebrates forty-sixth anniversary of Mariner 9 entering orbit around Mars.