Louis Essen OBE FRS(6 September 1908 – 24 August 1997) was an English physicist whose most notable achievements were in the precise measurement of time...

to control the output frequency. The first caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK and promoted worldwide...

also dissatisfaction with the frequent jumps in UTC (and SAT). In 1968, Louis Essen, the inventor of the caesium atomic clock, and G. M. R. Winkler both...

and statesman Louis Essen (1908–1997), English physicist Nikolai Essen (1860–1915), Russian naval commander and admiral Siri von Essen (1850–1912), Swedish/Finnish...

these can be used to determine the wavelength of the wave. In 1946, Louis Essen and A.C. Gordon-Smith established the frequency for a variety of normal...

transition of the caesium-133 atom, was built by the English physicist Louis Essen in 1955 at the National Physical Laboratory in London. It was calibrated...

at the National Physical Laboratory in the United Kingdom in 1955 by Louis Essen in collaboration with Jack Parry. In 1949, Alfred Kastler and Jean Brossel...

and pianist, lived at Ridge House, 11 Groveside, from 1948 to 1954. Louis Essen, pioneer of the atomic clock, died in Great Bookham. Conor Gallagher...

significantly improved measurement precision. (In the following table, only Essen (1955), Jaseja (1964), and Shamir/Fox (1969) are experiments of Michelson–Morley...

of Louis Essen. It is available on Amazon. One of the chapters from the memoirs includes Louis' recollections of his time at High Pavement ... Louis was...

based on a certain transition of the caesium-133 atom, was built by Louis Essen in 1955 at the National Physical Laboratory in the UK. Calibration of...

in St. Louis School of Medicine, he currently serves as an Alumni Endowed Professor of Neuroscience and maintains an active laboratory. Van Essen has held...

early innovators in quartz crystal oscillators include G. W. Pierce and Louis Essen. Quartz crystal oscillators were developed for high-stability frequency...

as a reference point. The first accurate caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK. Caesium clocks...

Theatre, precursor to the American Ballet Theatre. Essen was born Violeta Colchagoff in Saint Louis, Missouri and raised in New York City and Los Angeles...

1948, as an international time standard. He subsequently worked with Louis Essen in England to calibrate the newly developed atomic clocks in terms of...

based on a certain transition of the caesium-133 atom, was built by Louis Essen and Jack Parry in 1955 at NPL. Calibration of the caesium standard atomic...

electromagnetism (James Clerk Maxwell); the determination of the speed of light (Louis Essen); the development of antiseptics (Joseph Lister); the development of...

miles per second 94 years before it was scientifically calculated by Louis Essen showing the true speed was 186,000 miles per second. The Magic Staff:...

Japan (born 1925) Nobel laureate Ernest Esclangon – France (1876–1954) Louis Essen – U.K. (1908–1997) Leonhard Euler – Switzerland (1707–1783) Denis Evans...

electrodynamics. Therefore, fundamental criticism (like that of Herbert Dingle, Louis Essen, Petr Beckmann, Maurice Allais and Tom van Flandern) has not been taken...

became the first GM food on sale in the UK and in the United States. Louis Essen, a Nottingham physicist, made advances in the quartz clock in the 1930s...

standard based on a certain transition of the caesium-133 atom, is built by Louis Essen at the National Physical Laboratory. This clock enabled further development...

intelligence official and Head of the ANU Strategic and Defence Studies Centre Louis Essen – physicist Charles Bungay Fawcett – geographer Pamela Gillies – Vice-Chancellor...

John Harwood (1893–1964). 1955: First accurate atomic clock invented by Louis Essen (1908–1997). 1976: Coaxial escapement mechanism invented by George Daniels...

biologist, recipient of the Nobel Prize in Chemistry (born 1917) 24 August – Louis Essen, physicist (born 1908) 31 August Dodi Fayed, Egyptian film producer and...

Frederick Essen (April 22, 1863 – August 18, 1946) was a U.S. Representative from Missouri. Born near Pond, St. Louis County, Missouri, Essen attended...

Baron Blackett (ICL) Sir William Henry Bragg (UCL) Jocelyn Burnell (UCL) Louis Essen Sir John Ambrose Fleming (UCL) Dennis Gabor (ICL) Raymond Gosling (KCL)...

Physical Laboratory – the birthplace of atomic timekeeping. In the 1950s, Louis Essen and John Parry constructed the atomic clock, Caesium Mk. 1. This new...

turned to the piezo-electrical crystal to develop the first quartz clock. Louis Essen joined Dye's research group at the National Physical Laboratory in 1929...