An old engraving of a man using a pulley to lift a heavy stone in the 1800s. It is from Victorian book of the 1890s on sports, games and pastimes. This lifting device uses ropes and wheels attached to two blocks, with the upper block firmly attached to an overhead beam. Pulleys, forming a block and tackle, can provide a mechanical advantage and assist in the moving of large loads. Archimedes of Syracuse defined the principle of the lever and invented the compound pulley. His compound pulleys were created in around 287–212 BC, and could be used to lift an entire ship.
An old engraving of a man using a pulley to lift a heavy stone in the 1800s. It is from Victorian book of the 1890s on sports, games and pastimes. This lifting device uses ropes and wheels attached to two blocks, with the upper block firmly attached to an overhead beam. Pulleys, forming a block and tackle, can provide a mechanical advantage and assist in the moving of large loads. The ancient Egyptians and Mesopotamians were the first recorded people to have utilised basic crane-like pulley systems known as shadufs in order to extract water from rivers and irrigate the land. Archimedes of Syracuse defined the principle of the lever and invented the compound pulley. His compound pulleys were created in around 287–212 BC, and could be used to lift an entire ship.
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Photo credit: © M&N / Alamy / Afripics
License: Licensed
Model Released: No
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