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A wind turbine for the backyard

Alternative energy source designed for the home

Loopwing
X-Defense

No, it's not some kind of futuristic crossbow, though we would certainly understand if you thought it was. This weird-looking contraption is the "Loopwing Wind Turbine," a wind-powered energy source designed for home use and scheduled for official introduction at Japan's Eco-Products 2006 Exhibition. Treehugger says the device's wing design operates with "low vibration" but notes that the specs are vague--"43 percent power performance at optimum wind speeds," whatever that means. Still, we're reasonably sure it has more guts than the recently discovered wind-operated lamp.