New Delhi: To mark the 194th birth anniversary of French physicist Léon Foucault, on September 18, Google is posting an interactive digital version of the Foucault pendulum on its home page.
The Foucault pendulum was a device created by Léon Foucault that provided experimental evidence that the Earth rotates on its axis. A son of a publisher, Jean-Bernard-Léon Foucault was born on September 18, 1819 in Paris.
Léon Foucault also developed a method to measure the speed of of light. Though Foucault studied medicine he later switched his interests to experimental physics.
The Foucault pendulum was first demonstrated in 1851 when Foucault suspended a heavy iron ball from a wire and used the motion of the ball to prove that the Earth rotates on its axis.
Léon Foucault died on February 11, 1868. He was 48.
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