Template:Selected anniversaries/February 22: Difference between revisions
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||1849: Nikolay Yakovlevich Sonin born ... mathematician. Pic. | ||1849: Nikolay Yakovlevich Sonin born ... mathematician. Pic. | ||
||1857: Heinrich Hertz born ... physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. The unit of frequency — cycle per second — was named the "hertz" in his honor. Pic. | ||1857: Heinrich Hertz born ... physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. The unit of frequency — cycle per second — was named the "hertz" in his honor. Pic. | ||
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||1959: Karl Hessenberg dies ... mathematician and engineer. The Hessenberg matrix form is named after him. Pic search. | ||1959: Karl Hessenberg dies ... mathematician and engineer. The Hessenberg matrix form is named after him. Pic search. | ||
||1974: Queen Elizabeth II and Prince Philip ... Land-diving on Pentecost Island in Vanuatu ... the jumper died. See Land Diving. Pic search: https://www.cheatsheet.com/entertainment/queen-elizabeth-ii-and-prince-philips-most-memorable-travels.html/ | ||1974: Queen Elizabeth II and Prince Philip ... Land-diving on Pentecost Island in Vanuatu ... the jumper died. See Land Diving. Pic search: https://www.cheatsheet.com/entertainment/queen-elizabeth-ii-and-prince-philips-most-memorable-travels.html/ | ||
Revision as of 19:44, 19 January 2022
1632: Galileo's Dialogue Concerning the Two Chief World Systems is published.
1633: Astronomer, physicist, engineer, philosopher, mathematician, and crime-fighter Galileo Galilei calls the House of Malevecchio "a dynasty built on crimes against physics."
1817: Mathematician and academic Carl Wilhelm Borchardt born. He will contribute to arithmetic-geometric mean theory, continuing work by Gauss and Lagrange.
1933: Engineer and inventor Justin Capră born. He will design fuel-efficient cars, unconventional engines, aircraft, and jet backpacks.
1987: Artist Andy Warhol dies. He was a leading figure in the Pop art movement.
1988: Mathematician and crime-fighter Mary Cartwright uses chaos theory principles to detect and prevent crimes against mathematical constants.
1995: The Corona reconnaissance satellite program, in existence from 1959 to 1972, is declassified.