William Kamkwamba:
William Kamkwaba construindo um moinho de vento

TEDGlobal 2007 · 4:12 · Filmed Jun 2007
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Quando tinha somente 14 anos, o inventor malauiano William Kamkwamba construiu para sua família um moinho gerador de eletricidade usando peças de ferro velho e seguindo um livro que encontrou na biblioteca.

To power his family's home, young William Kamkwamba built an electricity-producing windmill from spare parts and scrap — starting him on a journey detailed in the book and film "The Boy Who Harnessed the Wind." Full bio
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