The first Foucault’s pendulum I ever saw was at the Franklin Institute in Philadelphia, the city where I was born. The pendulum hung in a stairwell. Its wire was attached to the ceiling four stories ...

This module expands on the capabilities for teaching using a Pendulum. A pendulum by itself can provide valuable insight into harmonic motion and the relationship between frequency and period. It can ...

Subscribe to get twice-daily updates on the latest local news and information in the Inland Northwest.

A 1-kg mass pendulum is held up to the demonstrator's face and is released. Because of conservation of energy, the mass will not swing higher than the height at which it was released. In fact, because ...