Category:Louis Essen

**Louis Essen**
	English physicist who invented the caesium atomic clock and determined the speed of light (1908-1997)
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Name in native language	Louis Essen;
Date of birth	6 September 1908; Nottingham
Date of death	24 August 1997; Great Bookham
Country of citizenship	United Kingdom;
Educated at	University of Nottingham; University of London;
Doctoral advisor	David William Dye;
Occupation	physicist; inventor; cyclist;
Member of	Royal Society (1960–);
Notable work	speed of light in vacuum;
Award received	Fellow of the Royal Society (1960); Officer of the Order of the British Empire (1959); Alexander Popov Gold Medal; I. I. Rabi Award (1987);
Authority file
	Q711250; ISNI: 0000000080043596; VIAF ID: 78306292; GND ID: 141591854; Library of Congress authority ID: nb2007013000; NUKAT ID: n01107137; Oxford Dictionary of National Biography ID: 68136; J9U ID: 987007456634205171
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Media in category "Louis Essen"

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