Louis Essen

Louis Essen OBE FRS[1](6 September 1908 – 24 August 1997) 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.

Louis Essen
Born(1908-09-06)6 September 1908
Died24 August 1997(1997-08-24) (aged 88)
Great Bookham, Surrey, England, UK
NationalityEnglish
Known forThe atomic clock/speed of light
AwardsFellow of the Royal Society (1960)
A.S. Popov Gold Medal from the USSR Academy of Sciences (1959)
Order of the British Empire (1959)
Rabi Award of the IEEE UFFC (1987)
Scientific career
Fieldsphysics
Doctoral advisorD. W. Dye
  1. ^ Cook, A. (1998). "Louis Essen, 6 September 1908 – 24 August 1997". Biographical Memoirs of Fellows of the Royal Society. 44: 143–158. doi:10.1098/rsbm.1998.0010.