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GravityLight - How Does it Really Work?

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GravityLight is an innovative light powered by the force of gravity – all you need is a weight. www.gravitylight.org GravityLight has been designed as a clean, safe and low cost alternative to kerosene lamps, used by over 1.3 billion people without electricity. That’s over 1 in 5 people. GravityLight covers aspects of design, science and technology, social and economic topics. GravityLight encompasses: - the physics of how it works - the product development process of trials, feedback and iterative improvements - the challenges of starting up a global organisation - the potential for GravityLight to reduce CO2 and black carbon emissions