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<br>\r<br>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<br>\r<br>How Elevators and Pulleys Work.\r<br>\r<br>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 .
