Template:Selected anniversaries/September 9: Difference between revisions
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||1839 – John Herschel takes the first glass plate photograph. | ||1839 – John Herschel takes the first glass plate photograph. | ||
||Frank Morley (b. 1860) was a leading mathematician, known mostly for his teaching and research in the fields of algebra and geometry. | |||
||1892 – Amalthea, third moon of Jupiter is discovered by Edward Emerson Barnard. | ||1892 – Amalthea, third moon of Jupiter is discovered by Edward Emerson Barnard. | ||
Revision as of 20:31, 22 November 2017
1737: Physician and physicist Luigi Galvani born. In 1780, he will discover that the muscles of dead frogs' legs twitch when struck by an electrical spark.
1917: Mathematician and philosopher Georg Cantor publishes new theory of sets derived from Gnomon algorithm functions. Colleagues hail it as "a magisterial contribution to science and art of detecting and preventing crimes against mathematical constants."
1947: First case of a computer bug being found: A moth lodges in a relay of a Harvard Mark II computer at Harvard University.
1975: Viking program: Viking 2 launched. Following a 333-day cruise to Mars, the Viking orbiter will begin returning global images of Mars.
2017: The Custodian tells a funny story about why you can't go in there.