Download - Pulleys alex
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![Page 1: Pulleys alex](https://reader036.vdocument.in/reader036/viewer/2022082808/556943aad8b42a2c788b4d96/html5/thumbnails/1.jpg)
Alex nyhof
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What is a pulley?
A pulley is a wheel & a endless rope. Like an elevator.
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When, why, who?
Pulleys were made along time ago. They could have been made in 250 BC! Why the pulley was made is to lift heavy objects to high places. A crane has a pulley & a lever but we are talking about pulleys.
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Different kinds
A pulley can also have two wheels! The two wheel pulley it is easier to lift heaver objects. A one wheel pulley is harder to lift heaver objects.
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Real life images