Learn how to make a simple DIY pendulum using a ping pong ball and basic household materials. This step-by-step guide shows ...

If you’re like me, you looked at this picture and the name “Three-Pendulum Rotary Harmonograph” and felt confused and a little bit threatened. But fear not! Turns out it’s one of those fun ...

Discover how to harness the motion of a swinging pendulum to generate electricity and charge your smartphone in this hands-on DIY tutorial. Watch as a small electric motor is disassembled and ...