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New lamp taps old power source: gravity (greendaily.com)

One of the award-winners from the recent Greener Gadgets Conference in NYC is an innovative LED lamp powered by gravity. Solar and wind power have one serious disadvantage: neither can be relied upon 24/7, so you need either battery storage or backup power. Gravity, however, is always with us (at least until the Rapture.)

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   323 days ago by emw17  +18 


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