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.
One of our lines of inquiry is "How is energy generated?" The above video is a terrific demonstration that helps to answer this question.
Can you create an example of your own? Here might be a good place to start.
And here are some more ideas from Sara:
Can you create an example of your own? Here might be a good place to start.
And here are some more ideas from Sara:
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