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말라위의 발명가 윌리엄 캄쾀바는 그가 겨우 14세일 때 도서관에서 빌린 책을 보며 버려진 부품들을 모아 가족들을 위한 작은 간이 풍력발전기를 만들었습니다.
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 »