Learn how to make a simple DIY pendulum using a ping pong ball and basic household materials. This step-by-step guide shows you how to construct, balance, and experiment with your pendulum, ...

A basic pendulum is a mass at the end of a string that swings back and forth. It seems simple, and it appears in most introductory physics textbooks. But it's not a trivial problem to solve for the ...

Discover how to harness the motion of a swinging pendulum to generate electricity and charge your smartphone in this hands-on ...