How Does a Pulley Work?: Q&A with Nate | Design Squad

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A pulley is a simple machine using a wheel and a cord that's designed for lifting. Pulleys help make work easier by redirecting motion or loads. Pulleys are everywhere — look for some around your home and try making one with Nate.

Watch as Nate designs, prototypes and completes an automatic cat feeder that uses a pulley!
Design: http://youtu.be/YuAgyiLZK5Y
Prototype: http://youtu.be/QMwicPL6b9I
Final Product: http://youtu.be/OjKPsTRlKHU
Tags
Pulleys with scale, pulleys, how pulleys work, physics

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