Foucault's gyroscope
= Foucault's gyroscope
{wiki=Foucault's_gyroscope}
Foucault's gyroscope is an apparatus used to demonstrate the principles of angular momentum and the behavior of gyroscopes, particularly their stability and precession. Named after the French physicist Léon Foucault, it is often used to illustrate the concepts of rotational motion. The gyroscope consists of a spinning wheel or rotor mounted on a frame that allows it to pivot freely on one or more axes.