One of the coolest things I've ever seen
Problem: Your water supply is erratic and the high-water table smells funny. You could pump deeper, but that would take more power, and you live in a poor South African village. Where will you get the energy from?
Solution: You hook a merry-go-round to the pump. Yeah, baby.
From Worldchanging.com, the coolest new site I've been introduced to lately. The good folks from Worldchanging are involved in a fascinating public conversation on the WELL for the next couple of weeks; go check 'em out. This is one site I'm going to be spending a lot of time with.