William Kamkwamba
publication date: Tuesday, August 14, 2018 (part of Summer 2018)
category: 
Inventions
clue: Ever since improving his village in Malawi, he has been an electrifying public speaker.
explanation: At the age of 20, Kamkwamba built a wind turbine out of very basic parts in his village, providing power (and later drinking water after building a solar-powered water pump). He became a popular speaker for TED Talks and on television. more…
difficulty: easy
solved by: Russ Wilhelm, LaVonne Lemler, Chris Lemler, Samir Mehta, and Richard Slominsky
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