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William Kamkwamba o stavbe veterného mlyna
4,231,505 plays
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William Kamkwamba
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TEDGlobal 2007
• June 2007
Read transcript
Mal len 14 rokov, keď malávsky vynálezca William Kamkwamba postavil rodine veterný mlyn na výrobu elektriny - z náhradných dielov, podľa približného návodu, ktorý našiel v knižnici.
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