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Question
Explain the Archimedes' screw and one of its modern applications.
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Solution
Archimedes' screw:
It is a manually operated screw conveyor used to pump water from a low-lying water body.
It consists of a huge cylinder with an inner screw. The rotation of the rod in the centre rotates the cylinder. It is placed at an inclination of 45∘ with the horizontal. As the rod is rotated, the water is lifted by the screw-like arrangement.
Archimedes' screw was used to lift water from the dock of a ship.
In modern days, a modified version of the Archimedes' screw called the combine harvester is used to harvest grain crops like paddy, wheat, and barley.
It is a manually operated screw conveyor used to pump water from a low-lying water body.
It consists of a huge cylinder with an inner screw. The rotation of the rod in the centre rotates the cylinder. It is placed at an inclination of 45∘ with the horizontal. As the rod is rotated, the water is lifted by the screw-like arrangement.
Archimedes' screw was used to lift water from the dock of a ship.
In modern days, a modified version of the Archimedes' screw called the combine harvester is used to harvest grain crops like paddy, wheat, and barley.
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