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Pulling pulleys Activity

by David, 26 July 2018 | 2 comments

Photo of a bobbin attached by a loop of string to a drink bottle, with another srting loop going upwards out of the shot.

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!

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