William Kamkwamba

William Kamkwamba is a student at African Leadership Academy, a pan-African high school in Johannesburg, South Africa. A 2007 TED Global Fellow, Kamkwamba has been profiled in the Wall Street Journal and his inventions displayed at Chicago's Museum of Science and Industry. He's often invited to tell his story, and in 2008, he delivered an address at the World Economic Forum on Africa.