12/23/2023 0 Comments Hitler kuckucksuhr![]() ![]() FTP testing determines maximum sustained aerobic power. In my mid 50’s, I can still manage 237 watts during a half hour Functional Threshold Power test on the bicycle. Who needs an industrial economy and a steady supply of fossil fuel powered electricity, when you can have the healthy exercise benefits of owning a human powered gravity light? Perhaps the benefits will spread to first world countries. Instead of studying for hours by the steady flame of a kerosene lamp, risking DVT from all that sitting down, every 20 minutes someone has to winch up a heavy bag of rocks. According to the specification Product weight (empty bag)īut hey, the idea has an endorsement from Bill Gates. The foundation has partnered with Shell to send more than 3,000 lights to families in Kenya. GravityLight is one of several startup companies working to make clean and renewable energy and lighting available to families in Kenya and around the world. Kerosene is expensive as a fuel, and can be dangerous as a flammable in the household. ![]() Sixty eight percent of Kenyans rely on kerosene as their main source of energy. In Kenya it’s estimated that one in seven people live without access to electricity. GravityLight Brings Clean Energy to Kenya What could be better for providing light in a poor country with no electricity than a cheap kerosene lamp? A group of renewable entrepreneurs think they have found the answer – meet Gravity Light, a third world LED lighting system powered by lifting a bag containing 12Kg (27lb) of rocks every 20 minutes. By GravityLight (GravityLight), via Wikimedia Commons
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