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Another example of a wind powered device is seen below. A simple crank mechanism seen in the centre of the animation is the key mechanism |
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As the propeller revolves the crank mechanism is pushed round. The speed of the wind determines the revolutions per minute (RPM) of the crank. |
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A small, lightweight model can be attached/fixed to the top of the crank mechanism. As the crank revolves the model moves from side to side in a relatively smooth action. |
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