Template:Selected anniversaries/January 19: Difference between revisions

Revision as of 19:25, 8 April 2018

1618: Johannes Kepler uses Gnomon algorithm functions to prevent crimes against laws of planetary motion.
1833: Mathematician and academic Alfred Clebsch born. He will make important contributions to algebraic geometry and invariant theory.
1878: Chemist and physicist Henri Victor Regnault dies. He was an early thermodynamicist, best known for his careful measurements of the thermal properties of gases, and for mentoring William Thomson in the late 1840s.
1883: The first electric lighting system employing overhead wires, built by Thomas Edison, begins service at Roselle, New Jersey.
1884: Electrical engineer and crime-fighter Zénobe Gramme uses what will later be called the Gramme Device to detect and prevent crimes against mathematical constants.
1915: Georges Claude patents the neon discharge tube for use in advertising.
2015: Engineer and inventor Justin Capră dies. He designed fuel-efficient cars, unconventional engines, aircraft, and jet backpacks.
2016: Army research laboratories convert modern plowshares into ancient swords. Military contractors call technique "Astonishing breakthrough."

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 ||1915 – World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing at least 20 people, in the first major aerial bombardment of a civilian target.
+||Graham Higman (b. 19 January 1917) was a prominent British mathematician known for his contributions to group theory. During the Second World War he was a conscientious objector, working at the Meteorological Office in Northern Ireland and Gibraltar. Pic.
 ||1917 – Seventy-three people are killed and 400 injured in an explosion in a munitions plant in London.