Traditional Culture Encyclopedia - Traditional culture - Our school will hold a science and technology festival. I want to make a small electric fan. What materials need to be prepared and how to do it?
Our school will hold a science and technology festival. I want to make a small electric fan. What materials need to be prepared and how to do it?
Remove the motor of the toy car at home.
Two 5th batteries, of course, solar panels are the best (two points).
Then the fan blades are made by themselves, folded with paper or go directly to the place where toys are sold.
Then there are some wires and a switch (on the flashlight)
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