You're in for a shock at genius teens' pee-powered generator11/10/2012
Four ingenious African teenagers have rigged up the world’s first pee-powered generator. Yeah, we’ve heard all that "African problems need African solutions" stuff — and this is a pretty fantastic solution— but right now we also know a few Sandy-clobbered East Coasters who could really use one of these. The girls’ invention premiered at Maker Faire Africa in Lagos, Nigeria, and it’s just plain awesome. We won’t bore you with the chemistry that involves breaking down urea into nitrogen, water and hydrogen and somehow utilizing liquid borax, but suffice it to say that using their contraption a measly quart of urine provides six hours of electricity. Amazing. [Source]
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What new gadget would you like to invent?