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Simple Machines Block & Tackle
Product Number: CTU512
One pulley can be used to change the direction of the force applied by a cord several pulleys can be used to make this simple...
$24.99
One pulley can be used to change the direction of the force applied by a cord several pulleys can be used to make this simple machine. A small force on the cord can be used to lift a large weight. Experimenting with the device shows why: lifting the block by a short distance requires that the cord be pulled a long distance. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized.
CTU512
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One pulley can be used to change the direction of the force applied by a cord several pulleys can be used to make this simple...