Template:Selected anniversaries/June 9: Difference between revisions
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||1781: George Stephenson born ... engineer, designed the Liverpool and Manchester Railway. | ||1781: George Stephenson born ... engineer, designed the Liverpool and Manchester Railway. | ||
||1786: William George Horner born ... mathematician; he was a schoolmaster, headmaster and schoolkeeper, proficient in classics as well as mathematics, who wrote extensively on functional equations, number theory and approximation theory, but also on optics. He invented the Daedaleum in 1834, re-discovering the Zoetrope. Pic: http://uchihahyral.blogspot.com/2013/02/william-george-horner-1786-1837.html | |||
||1812: Johann Gottfried Galle born ... astronomer from Radis, Germany, at the Berlin Observatory who, on 23 September 1846, with the assistance of student Heinrich Louis d'Arrest, was the first person to view the planet Neptune and know what he was looking at. Urbain Le Verrier had predicted the existence and position of Neptune, and sent the coordinates to Galle, asking him to verify | ||1812: Johann Gottfried Galle born ... astronomer from Radis, Germany, at the Berlin Observatory who, on 23 September 1846, with the assistance of student Heinrich Louis d'Arrest, was the first person to view the planet Neptune and know what he was looking at. Urbain Le Verrier had predicted the existence and position of Neptune, and sent the coordinates to Galle, asking him to verify | ||
Revision as of 16:04, 23 November 2018
1861: Physicist, mathematician, and historian Pierre Duhem born. He will write: "A theory of physics is not an explanation. It is a system of mathematical propositions, deduced from a small number of principles, which have for their aim to represent as simply, as completely and as exactly as possible, a group of experimental laws."
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."
1950: Dalton Trumbo photographed by authorities.
2018: Signed first edition of Green Ring Coalescence used in high-energy literature experiment unexpectedly develops artificial intelligence.