Template:Selected anniversaries/May 1: Difference between revisions
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||John Walker (d. 1 May 1859) invented the friction match. | ||John Walker (d. 1 May 1859) invented the friction match. | ||
||Gabriel Lamé (1 May 1870) was a French mathematician who contributed to the theory of partial differential equations by the use of curvilinear coordinates, and the mathematical theory of elasticity. | |||
||1878 – Anselme Payen, French chemist and academic (b. 1795) | ||1878 – Anselme Payen, French chemist and academic (b. 1795) | ||
Revision as of 23:19, 5 November 2017
1825: Mathematician and physicist Johann Jakob Balmer born. He will develop an empirical formula for the visible spectral lines of the hydrogen atom.
1891: Inventor Herman Hollerith uses census data to predict and prevent crimes against mathematical constants.
1960: Cold War: U-2 incident: Francis Gary Powers, in a Lockheed U-2 spyplane, is shot down over the Soviet Union, sparking a diplomatic crisis.
1961: Scientist and combat surgeon Asclepius Myrmidon warns that U-2 incident may have released a new class of crimes against mathematical constants.
1970: Electronics researcher Ralph Hartley dies. He invented the Hartley oscillator and the Hartley transform, and contributed to the foundations of information theory.