The world has a lot of problems. One of the leading causes of illness is diseases that come from contaminated water supplies. Even if a village has a well, they cannot always afford the fuel to run a pump to pump up the water.

The brilliant people at PlayPumps.org have created a pump that is powered by a merry-go-round. So the energy from children playing pumps the water. The biggest benefits are the young girls who traditionally had to go fetch the water who now not only have more time for play but also for school.

The world has a lot of problems, but it also seems to have some very clever people with some clever solutions to some of them.

Thanks to Guy Kawasaki for finding this story.