This Gravity Lamp by a Virginia Tech pupil won 2nd place at the Greener Gadgets Design Competition this calendar week . The idea is quite simple in theory : a people moves lento down a column , which generate electricity by when the voltage to kinetic vitality conversion of the mass falling spins a rotor . To “ readjust ” the lamp , the user just flip-flop the affair over and localize the process in motion again . The entire apparatus should last about 200 geezerhood if used only eight hours a day , but should be enough long for anyone we know . [ Greener Gadgetsvia viaDVice ]
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