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Secrets of the Elevator | Science Curiosity | REDMON
Автор: Redmon Kids! Songs & Stories
Загружено: 2019-11-06
Просмотров: 142795
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Science Curiosity - Secrets of the Elevator
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Do you know what the secrets of the Elevator?
It's amazing that an elevator uses a pully design. A movable pulley that requires half the force, and the fixed pulley system that just changes direction of the force.
#redmon #redmonScience #redmonStory #Curiosity #elevator
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