http://www.youtube.com/watch?v=G8yKFVPOD6o
http://www.ted.com When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, w…
http://www.youtube.com/watch?v=G8yKFVPOD6o
http://www.ted.com When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, w…