Few people know it, but the soil is teeming with energy in the form of zinc, copper and iron. Special microbial fuel cells – so-called “Earth batteries” – can transform this energy into electricity.
While solar lawn lamps are great, it is hard to deny the appeal of Dutch designer Marieke Strap’s Soil Lamp. This cool-looking lawn ornament takes a slightly different approach to soil energy. It takes copper and zinc strips, made out of metals naturally extracted from the soil, and uses them to provide a constant charge to a long-lifetime LED bulb – no bacteria required.
There is one catch – the bulb requires a bit of water to keep it going, but most people water their lawns anyways, so this is not a huge issue. The lamp earns high marks both for its chic design and for being among the first to explore the new field of soil-powered gadgets.
For those interested in picking up one of these cool lamps, it is unfortunately not currently available for order in the U.S. However, as many of Marieke Strap’s products are at retailers worldwide, and given the enthusiastic response, there seems little doubt that these lamps may soon be coming to a lawn near you.
written by macrumpton, March 16, 2009
written by Miel Breitsammer, March 17, 2009
written by Fred, June 25, 2009
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