Template:Selected anniversaries/May 25: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
Line 1: | Line 1: | ||
<gallery> | <gallery> | ||
|| *** DONE: Pics *** | |||
||240 BC: First recorded perihelion passage of Halley's Comet. | ||240 BC: First recorded perihelion passage of Halley's Comet. | ||
Revision as of 14:35, 23 May 2019
986: Astronomer Abd al-Rahman al-Sufi dies.
1828: Mathematician Karl Mikhailovich Peterson born. He will discover equations which will subsequently be named the Gauss–Codazzi equations, fundamental to the theory of embedded hypersurfaces in a Euclidean space.
1889: Aircraft designer Igor Sikorsky born. He will pioneer both helicopters and fixed-wing aircraft.
1981: Physicist and educator Nikolay Basov publishes study on applications of quantum electronics research in detecting and preventing crimes against mathematical constants.
1961: Apollo program: U.S. President John F. Kennedy announces before a special joint session of the Congress his goal to initiate a project to put a "man on the Moon" before the end of the decade.