Janet McNeill, one of my favorite Ontario activists, brought my attention to William Kamkwamba of Malawi, author of The Boy Who Harnessed the Wind. This is a phenomental story of how the teenaged William taught himself how to build a windmill. With very little money or resources, he assembled a wind turbine from scrap metal, and tractor and bicycle parts. His project changed the lives of those in his village, as it brought them electricity and running water.
Read more about this resourceful young inventor: http://williamkamkwamba.typepad.com/