Archive for the ‘Save the world’ Category

campfire refrigeration

Wednesday, September 10th, 2008

Place this small unit for 20 minutes in a cooking fire, let it cool for 1 hour, and it yields 24 hours of refrigeration. Sure it would be cool for road-trips and camping, but imagine how this could benefit hunter-gatherers, pastoral nomads, tribes, and villages in sub-poverty.

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Play at the pump

Thursday, February 14th, 2008

One of the biggest problems in the world is the billion or so people who don't have access to clean water. Enter the merry-go-round water pump–harnessing the unlimited power of play.

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