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by libria
4921 days ago
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When I think "powered solely by gravity" I think of something like a hydro electric plant which can generate more energy than is required to operate it. At any rate, the phrase was written by Enpundit, not GravityLight. Their indiegogo page is less dramatic and more scientific about what powers their lamp: http://www.indiegogo.com/projects/282006 |
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