There are about nearly two billion people in the world who have no - TopicsExpress



          

There are about nearly two billion people in the world who have no reliable access to electricity. No lights, no TV, no Internet. Instead, they rely on burning biomass for light once the sun goes down. Martin Riddiford and Jim Reeves are two London-based designers who have designed an eco-friendly light that uses gravity as an energy source to power an LED lamp. The GravityLight has a simple design. It uses a bag of weight attached to a power generator with a special cable. The weight bag, when released from a height, rotates a small generator. That generates enough power for 30 minutes of light on its descent. GravityLight’s developers are currently looking to raise funds for tooling, manufacture and distribution of at least 1000 gravity powered lights. They promise to gift them to villagers in both Africa and India. For more details see indiegogo/projects/282006
Posted on: Sat, 27 Sep 2014 06:20:42 +0000

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