How does an elevator work? Pulley system explained

The elevator is a type of vertical transport equipment that efficiently moves people or goods between floors of a building. Elevators are generally powered by .\r
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With the help of an elevator prototype, this video explains 3 different pulley systems and why real elevators use 1 turn (direct) pulley systems.\r
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How Elevators and Pulleys Work.\r
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Its really amazing to see how an elevator works! Just by looking in the elevator shaft like Im doing in this video, these are actually the scenic elevators at Sams .