Monthly Archives: February 2013
The perfect bead: Caulking as an artform
A small tip – and a simple technique – can ensure that caulk is applied in a way that adds value to a building.
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Low-scale tech: Hydrogen from urine generates electricity in Africa
A group of teenagers in Africa have developed a urine-fueled generator that can provide six hours of electricity per one liter of pee. The young ladies showcased their invention at this year’s Maker Faire Africa in Lagos, Nigeria. Here’s how … Continue reading
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The National Negawatt Exchange 