Discover how to build a simple DIY Stirling engine powered by heat from candles using an empty spray can and pen components.

What if a doctor could inject an electricity-conducting liquid into the body, let it temporarily solidify to record nerve ...

Though research on moisture-electric generators, which create energy from ambient humidity, exists, the tech isn't ready for ...

The LED, or light-emitting diode, is very unlikely to fail, and if it does, it goes out slowly over the years. Instead, it's the other electrical bits in LED bulbs that fail and cut off the bulb's ...