http://www.ted.com At age 14, in poverty and famine, a Malawian boy built a windmill to power his family's home. Now at 22, William Kamkwamba, who speaks at TED, here, for the second time, shares in his own words the moving tale of invention that changed his life. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and
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