By David Shaw, 23 September 2021
This simple toy can balance on a table edge or a fingertip. So get your craft on and have some physics fun!
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By David Shaw, 26 July 2018
Have you ever wondered how cranes can lift such heavy things? Their pulleys really help lighten the load. In this activity, have a play with some pulleys. These simple machines can make heavy weights as light as a feather!