Catching up with inventor William Kamkwamba

Inventor and author William Kamkwamba returns to the TED stage a decade after his TEDGlobal 2007 talk in which he spoke about building a windmill for his community at the age of 14. In conversation with TED Curator Chris Anderson, he shares with us where his dreams and accomplishments have taken him.

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William Kamkwamba: How I built a windmill

William’s original TED talk when he was 19 years old. When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, working from rough plans he found in a library book.

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NASA Bernoulli’s Principle – Museum in a Box

Be careful! Sometimes NASA is wrong. In this document, it claims air moving across the top and bottom of the wing must reach trailing edge of the wing at the same time. This is a very common misconception. See the How Things Fly document from the Smithsonian National Air and Space Museum for the real…

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