Template:Selected anniversaries/October 21: Difference between revisions
No edit summary |
No edit summary |
||
Line 25: | Line 25: | ||
||1886: Frederick Guthrie dies ... physicist and chemist and academic author. Pic. | ||1886: Frederick Guthrie dies ... physicist and chemist and academic author. Pic. | ||
||1886: Aviation pioneer Eugene Burton Ely born. He will be credited with the first shipboard aircraft take off and landing. Pic. | |||
||1896: James Henry Greathead dies ... civil engineer renowned for his work on the London Underground railway. He is also the reason that the London Underground is colloquially named "the tube". Pic. | ||1896: James Henry Greathead dies ... civil engineer renowned for his work on the London Underground railway. He is also the reason that the London Underground is colloquially named "the tube". Pic. |
Revision as of 03:14, 14 November 2019
1687: Mathematician and theorist Nicolaus I Bernoulli born. He will introduce a successful resolution to the St. Petersburg paradox.
1768: Astronomer and adventurer Guillaume Le Gentil publicly accuses the House of Malevecchio of crimes against astronomical constants. The Malvecchians will back down from the encounter, but later secretly punish Le Gentil by creating overcast conditions on June 4, 1769.
1914: Mathematics and science writer Martin Gardner born. His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.
1958: National Pareidolia Day declared in the United States.
1969: Mathematician and academic Wacław Sierpiński dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.
2017: Green Spiral 9 feels more green than ever, according to new chromatographic survey.