Did you know you can measure an unknown mass with a rubber band? You pretty much can. The first thing you should do with any project is to play. So, go get a rubber band and play with it. What happens ...
Introduction Have you ever played with a Slinky, used a pinball machine, written with a click pen or ridden in a car? If so, then you have made use of a spring! Springs are in machines all around us ...
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