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 …

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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 …

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Learn about pulleys and how they work with a diagram, making it easier to understand their function in mechanical systems.

Pulleys are used individually or in combination to transmit power and motion. Pulleys with grooved edges are called sheaves. In belt drives, pulleys are attached to shafts at their axles, and …