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

The Tesla turbine is a bladeless centripetal-flow turbine invented by Nikola Tesla in 1913, using the boundary-layer effect rather than having a stream of gases or a fluid impinge on blades.

Learn how to create a simple DIY electrical generator using a few easy-to-find materials. This step-by-step video guides you ...