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US Virginia Tech student Clay Moulton designed the impressive Gravia concept – a gravity powered floor lamp.
The 1.2m tall device runs somewhat like a grandfather clock, just a little over 20kg of brass weights that descend slowly – in this case running a generator.
Moulton’s brainchild won second place in the US Greener Gadgets competition.
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Comments (2)
unfortunately, this device has already been proved unworkale. the amount of energy released by the falling weight, even in an ideal, theoretical universe, would barely be enough to illuminate a nightlight.
Posted by michael wendell | March 19, 2008 12:36 PM
Posted on March 19, 2008 12:36
How could anyone who knew even very basic physics be taken in by this scam?
If this device worked as claimed then as little as 2 buckets of water (20 kg) every four hours turning a 2.4m diameter water wheel would continuously light a room.
Who were the judges of this competition?
Posted by Lawrence Mayes | April 2, 2008 12:11 PM
Posted on April 2, 2008 12:11