[Paul Junkin] bought a curious product off the Internet. It was supposed to generate electricity when hooked up to a running hose. Only, it didn’t do a very good job. His solution was ...

Discover how to build a hand-powered water pump that also generates electricity to light up LEDs using everyday recycled ...

How many of you plan to build a wind-powered generator in the next year? Okay, both of you can put your hands down. Even if you don’t want to wind your coils manually, learning about the principles in ...

During a winter storm, a generator can help give your home or business power if electricity has been knocked out. But people ...