Inspired by the classic drinking bird toy, scientists have developed an engine that efficiently converts energy from water evaporation into electricity to power small electronics. The device produces ...

In this video you will see how I built a giant water wheel near my log house, deep in the middle of the forest, next to a stream. This is not just a decorative wheel - it is a real powerful generator, ...

A generator that harvests the pitter-patter of raindrops can produce enough electricity to power LED lights, though it is unclear how practical it might be. Yonghui Zhang and colleagues at Dalian ...

The push for renewable energy has led scientists to explore sources once thought of as useless. From food waste to plant fibers, researchers are looking at nature’s discarded materials in search of ...