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Pulley - Wikipedia
In Roman Egypt, Hero of Alexandria (c. 10–70 AD) identified the pulley as one of six simple machines used to lift weights. [3] Pulleys are assembled to form a block and tackle in order to provide …
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How do pulleys work? - Explain that Stuff
Apr 21, 2025 · A pulley is simply a collection of one or more wheels over which you loop a rope (or chain) to make it easier to lift things. Here's an everyday example: Photo: A pulley mounted on a …
Pulley: Definition, Types, Examples and Diagrams
Jan 18, 2022 · It is constructed by looping a rope or a cable around the groove of the wheel. Therefore, the three main parts of a pulley are the wheel, axle, and rope. A pulley is used for lifting heavy …