The concept of building your own hydroelectric generator seems simple at face value: use gravity to impart as much force as possible onto a turbine, which spins a generator, thus generating ...

Discover how to create a homemade portable power generator using simple materials like DC motors, cardboard, and a USB wall adapter. This step-by-step DIY tutorial shows you how to build a compact ...

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