Called a Foucault (pronounced “foo-KOH”) pendulum after its designer, French physicist Léon Foucault, the device was conceived in 1851 to demonstrate the rotation of the Earth. This pendulum ...
The Foucault pendulum which was displayed for many years in the Smithsonian's National Museum of American History was removed in late 1998 to make room for the Star-Spangled Banner Preservation ...
As far back as 470 BCE, ancient Greeks speculated the Earth itself moves. In 1851, French physicist Leon Foucault ...
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