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Louis Essen

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English physicist who invented the caesium atomic clock and determined the speed of light (1908-1997)

United KingdomScientistsLived 1908 to 1997 · aged 88
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Fame48.3
Momentum15.6
Languages14
In century#78,601

Louis Essen OBE FRS was an English physicist whose most notable achievements were in the precise measurement of time and the determination of the speed of light. He was a critic of Albert Einstein's theory of relativity, particularly as it related to time dilation.

Also inDeutsch

Photos 1

Louis Essen (right) and Jack Parry (left) standing next to the world's first caesium-133 atomic clock.Louis Essen (right) and Jack Parry (left) standing next to the world's first caesium-133 atomic clock.

Awards 4

1987I. I. Rabi Award
1960Fellow of the Royal Society
1959Officer of the Order of the British Empire
A. S. Popov Gold Medal

Connected to Louis 6

Norman Foster Ramsey Jr.Also won I. I. Rabi AwardHidetoshi KatoriAlso won I. I. Rabi AwardMikhail LeontovichAlso won A. S. Popov Gold MedalJohn L. HallAlso won I. I. Rabi AwardBoris VvedenskyAlso won A. S. Popov Gold MedalPatrick GillAlso won I. I. Rabi Award

About this person

Country
United Kingdom
Category
Scientists
Type
Scientist
Status
deceased
Dates
Lived 1908 to 1997 · aged 88
Written about in
14 languages

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