Wednesday, September 18, 2013


September 18, 1819 - February 11, 1868

Leon Foucault

  Foucault's Pendulum Google Videos

Leon Foucault celebrated in Google doodle   The Guardian - September 18, 2013

Leon Foucault was a French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and although he didn't invent it, is credited with naming the gyroscope. The Foucault crater on the Moon is named after him.

The phenomenon develops calmly, but it is invisible, unstoppable. One feels, one sees it
born and grow steadily; and it is not in one's power to either hasten or slow it down.

Leon Foucault - Foucault Pendulum

Crystalinks: Pendulums