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Listed under:  Technologies  >  Machinery  >  Pulleys
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Horsedrawn whim on a gold field at Gympie, 1870-80

This is a black-and-white photograph of the minehead area at a Queensland goldmine. It shows the mine's headframe and a horsedrawn 'whim'. The whim consists of a wooden derrick construction with two large vertically mounted drums at its centre, one with a rope wound around it. The rope is connected at one end to the swivel ...

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Pulley hoist | Questacon

In this activity, students investigate pulleys. They build and test a range of pulley systems that increase in complexity, and then describe the way the pulleys change the magnitude and direction of the forces applied and the distance over which the load is moved. The activity includes a list of what is required, suggestions ...