Template:Selected anniversaries/April 18: Difference between revisions
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||1838 – Paul-Émile Lecoq de Boisbaudran, French chemist and academic (d. 1912) | ||1838 – Paul-Émile Lecoq de Boisbaudran, French chemist and academic (d. 1912) | ||
||Julius Wolff (b. 18 April 1882) was a Dutch mathematician, known for the Denjoy–Wolff theorem and for his boundary version of the Schwarz lemma. | |||
||1892 – Eugene Houdry, French-American mechanical engineer and inventor (d. 1962) | ||1892 – Eugene Houdry, French-American mechanical engineer and inventor (d. 1962) | ||
Revision as of 11:20, 26 December 2017
1324: Alleged supernatural healer Malady saves patient from the Black Death, accidentally infects doctor.
1761: Mathematician Maria Gaetana Agnesi invents new type of scrying engine which detects crimes against mathematical constants.
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.