• By Jason Chen
    Feb 19, 2008 12:40 PM 12,373
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    #gravity

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    Gravity Lamp Lasts 200 Years, Will Gmm/r2 Torchiere Lamps Out

    This Gravity Lamp by a Virginia Tech student won second place at the Greener Gadgets Design Competition this week. The idea is quite simple in theory: a mass moves slowly down a column, which generates electricity by when the potential to kinetic energy conversion of the mass falling spins a rotor. To "reset" the lamp, the user just flips the thing over and sets the process in motion again. The entire setup should last about 200 years if used only eight hours a day, but should be plenty long for anyone we know. [Greener Gadgets via via DVice]


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