Template:Selected anniversaries/April 12: Difference between revisions

Revision as of 08:09, 18 February 2018

1604: Johannes Kepler discovers new class of crimes against mathematical constants.
1805: Emperor Napoleon and Empress Josephine visit Lyon and viewed Joseph Marie Jacquard's new programmable loom.
1817: Astronomer Charles Messier dies. He published an astronomical catalogue consisting of nebulae and star clusters that came to be known as the 110 "Messier objects".
1852: Mathematician and academic Ferdinand von Lindemann born. He will prove (1882) that π (pi) is a transcendental number.
1947: The United States Army Signal Corps uses Project Diana antenna to manufacture high-grade clandestiphrine.
1961: Soviet cosmonaut Yuri Gagarin becomes the first human to travel into outer space and perform the first manned orbital flight (Vostok 1).
2016: Advances in zero-knowledge proof theory "are central to the problem of mathematical reliability," says mathematician and crime-fighter Alice Beta.
2017: Math photographer Cantor Parabola wins Pulitzer Prize for series of quantum timeline photographs.

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 ||1927 – Shanghai massacre of 1927: Chiang Kai-shek orders the Communist Party of China members executed in Shanghai, ending the First United Front.
+||Thaddeus Cahill (d. 12 April 1934) was a prominent inventor of the early 20th century. He is widely credited with the invention of the first electromechanical musical instrument, which he dubbed the telharmonium. His idea proved to be fruitful, nearly a century later, with the advent of streaming media. Pic.
 ||1937 – Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.