Jean Bernard Leon Foucault (1819-1860), French physicist. Artist: Unknown
Jean Bernard Leon Foucault (1819-1860), French physicist. Foucault measured the velocity of light and, in 1851, proved the rotation of the Earth on its axis using his pendulum. He invented the gyroscope (1857), and improved the design of the reflecting telescope.
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Photo credit: © Ann Ronan Picture Library/Heritage-Images / Alamy / Afripics
License: Licensed
Model Released: No
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