Duo create GravityLight: Lamp that runs off of gravity (w/ video)
Thursday, December 13, 2012 - 07:31
in Physics & Chemistry
(Phys.org)—London based designers Martin Riddiford and Jim Reeves have created what they are calling the GravityLight, an LED lamp that runs off of nothing but gravity. The purpose of the lamp is to provide people in third world countries with an alternative to kerosene lamps which cause burns and lung ailments to millions of people too poor to afford any other source of light.