Template:Selected anniversaries/April 18: Difference between revisions
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||1732 – Louis Feuillée, French astronomer, geographer, and botanist (b. 1660) | ||1732 – Louis Feuillée, French astronomer, geographer, and botanist (b. 1660) | ||
File:Maria Gaetana Agnesi.jpg|link=Maria Gaetana Agnesi (nonfiction)|1761: Mathematician [[Maria Gaetana Agnesi (nonfiction)|Maria Gaetana Agnesi]] invents new type of [[scrying engine]] which detects [[crimes against mathematical constants]]. | |File:Maria Gaetana Agnesi engraving.jpg|link=Maria Gaetana Agnesi (nonfiction)|1761: Mathematician [[Maria Gaetana Agnesi (nonfiction)|Maria Gaetana Agnesi]] invents new type of [[scrying engine]] which detects [[crimes against mathematical constants]]. | ||
||Johan Carl Wilcke (d. 18 April 1796) was a Swedish physicist. | ||Johan Carl Wilcke (d. 18 April 1796) was a Swedish physicist. | ||
Revision as of 11:03, 4 February 2018
1324: Alleged supernatural healer Malady saves patient from the Black Death, accidentally infects doctor.
1945: Electrical engineer and physicist John Ambrose Fleming dies. He invented the thermionic valve, also known as the vacuum tube.
1955: Physicist, engineer, and academic Albert Einstein dies. He developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
1963: Vandal Savage Press is front for clandestiphrine manufacturing operation, says crime-fighter John Brunner.