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A 14 anni, un ragazzo del Malawi povero e a rischio di morte per fame ha costruito un mulino a vento per dare energia alla casa della sua famiglia. Ora, a 22 anni, William Kamkwamba, che parla qui a TED per la seconda volta, racconta con parole sue la commovente storia dell'invenzione che ha cambiato la sua vita.
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 "The Boy Who Harnessed the Wind" and the new film, "William and the Windmill." Full bio »
Translated into Italian by Gaetana Ariu
Reviewed by Annalisa Paini
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