Powering Lamps with Soil (thanks, Ray)

Normally when it comes to energy, we talk about biofuels and hydrogen sources like methanol. But one designer decided to go for a more natural, easily accessible power source. One of Marieke Strap's rather interesting projects is a lamp powered by nothing else other than your run-of-the-mill garden soil. Aptly called the "Soil Lamp," it exploits the naturally-occurring electrolytes in healthy garden soil to provide energy enough to power a simple LED light bulb. More here: Powering lamps with soil