A stream of compressed air does not look like a power source. In factories, it usually hisses through pipes, drives tools, then disappears as waste.

This is the first study to demonstrate electricity generation via the particulate static effect by using a Tesla turbine structure. The proposed device can be operated solely with practical compressed ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers from Singapore have developed a clever way to turn raindrops into electricity - enough to power 12 LEDs for 20 seconds ...