Template:Selected anniversaries/April 24: Difference between revisions
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|File:The Custodian.jpg|link=The Custodian|1870:[[The Custodian]] cleans up paradoxes caused by [[Grigori Rasputin (nonfiction)|Grigori Rasputin]]'s experiments in [[Time travel (nonfiction)|time travel device]]. | |File:The Custodian.jpg|link=The Custodian|1870:[[The Custodian]] cleans up paradoxes caused by [[Grigori Rasputin (nonfiction)|Grigori Rasputin]]'s experiments in [[Time travel (nonfiction)|time travel device]]. | ||
||Felix Ehrenhaft (b. 24 April 1879) was an Austrian physicist who contributed to atomic physics, to the measurement of electrical charges and to the optical properties of metal colloids. He was known for his maverick and controversial style. Pic. | |||
||1880 – Gideon Sundback, Swedish-American engineer and businessman, developed the zipper (d. 1954) | ||1880 – Gideon Sundback, Swedish-American engineer and businessman, developed the zipper (d. 1954) | ||
Revision as of 06:06, 1 April 2018
1656: Mathematician and physicist Thomas Fincke dies. He introduced the modern names of the trigonometric functions tangent and secant.
1863: Printer, inventor, and crime-fighter Édouard-Léon Scott de Martinville patents new type of phonoautograph, which records crimes against mathematical constants as photographic images.
1914: The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
1915: Miniaturized version of John Ambrose Fleming delivers lecture from within Fleming tube.
1967: Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open. He is the first human to die during a space mission.