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Know Gags: Gravity lamp - works 200 years

By nihalk 289 days ago from http://knowgags.blogspot.com

This is one of the coolest gadgets ever made, Gravia - the gravity lamp. A student in Virginia won the Greener Gadget Award for his LED lamp that works on the gravity. The lamp has a weight that needs to be raised everyday; the weight is connected to a rotor by a cord. The electricity is generated by the slow fall of a weight t

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Tags: 200 years award gadget gravia gravity green lamp technology virginia