At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped ...

Google today is celebrating the 194th birthday of French physicist Léon Foucault with an interactive, homepage doodle of his famous pendulum. The pendulum was used to demonstrate the rotation of the ...

Equipment: A 1.5" diameter wooden ball on a string, a magnetic mount, a rod on a magnetic mount, chalk, a meter stick and a magnetic blackboard or whiteboard. What it does: The pendulum is released ...

Keeping the cable taught, pull the pendulum (bowling ball) to one side until it touches your nose. Be sure to stand straight and still. Release the pendulum, taking care not to move your face. Remain ...

At the time, scientists were aware that the Earth rotated, but this 1851 demo provided easy-to-understand proof. Google's doodle, therefore, lets users manipulate the pendulum, setting the time of day ...