Shifting Sand: The Physics of the Foucault Pendulum

For centuries, humanity knew the Earth rotated, but this was only observable by tracking the stars. There was no physical, mechanical proof on the ground-until the French physicist Leon Foucault hung a 28-kilogram brass bob from the dome of the Pantheon in Paris in 1851. This educational volume breaks down the beautiful physics of the Foucault Pendulum. Once set in motion, a pendulum swings in a...