Template:Selected anniversaries/October 8: Difference between revisions
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||1873 – Ejnar Hertzsprung, Danish chemist and astronomer (d. 1967) was a Danish chemist and astronomer, born in Copenhagen, Denmark. In the period 1911–1913, together with Henry Norris Russell, he developed the Hertzsprung–Russell diagram. | ||1873 – Ejnar Hertzsprung, Danish chemist and astronomer (d. 1967) was a Danish chemist and astronomer, born in Copenhagen, Denmark. In the period 1911–1913, together with Henry Norris Russell, he developed the Hertzsprung–Russell diagram. | ||
||Ignazio Porro (d. 8 October 1875) was an Italian inventor of optical instruments. Porro's name is most closely associated with the prism system which he invented around 1850 and which is used in the construction of Porro prism binoculars. He also developed a strip camera in 1853 for mapping, which was one of the earliest such. Pic. | |||
||1901 – Mark Oliphant, Australian physicist, humanitarian and politician, Governor of South Australia (d. 2000). Pic. | ||1901 – Mark Oliphant, Australian physicist, humanitarian and politician, Governor of South Australia (d. 2000). Pic. | ||
Revision as of 07:03, 29 April 2018
1907: Author and illustrator Richard Sharpe Shaver born. He will write stories in which he claimed that he has had personal experience of a sinister, ancient civilization that harbors fantastic technology in caverns under the earth.
1924: Mathematician and statistician John Nelder born. He will contribute to experimental design, analysis of variance, computational statistics, and statistical theory. He will also be responsible, with Max Nicholson and James Ferguson-Lees, for debunking the Hastings Rarities.
1925: Signed first edition of Culvert Origenes and The Governess stolen by math criminals.
1941: Mathematician and crime-fighter Joseph Wedderburn the Artin–Wedderburn theorem on simple algebras to detect and prevent crimes against mathematical constants.
1942: Physicist, mathematician, and engineer Sergey Chaplygin dies. He is known for mathematical formulas such as Chaplygin's equation, and for a hypothetical substance in cosmology called Chaplygin gas, named after him.
1946: Sea-creature and alleged supervillain Neptune Slaughter denies sinking the Japanese aircraft carrier Hiryu.
1985: Mathematician, cryptographer, and author Gordon Welchman dies. During the Second World War, he developed traffic analysis techniques for breaking German codes.
2009: Physicist and crime-fighter Tullio Regge uses spin foam models to detect and prevent crimes against physics, warns that quantum gravity "may still be at risk."