To use this device as a pump, one end is placed in a low-lying fluid source and then tilted up into a discharge tank. The helical blades create pockets between the core and the inner wall of the hollow cylinder. Helical blades are wound around the core and are secured tightly against the hollow cylinder. The core sits inside of the hollow cylinder. The Archimedes screw is made up of a hollow cylinder and a cylindrical core. A positive-displacement pump traps an amount of fluid from a source and then forces the fluid to move to a discharge location. The Archimedes screw is a positive-displacement pump. It's a tool that has never gone out of style. For instance, it is used to lift wastewater in treatment plants and even to lift water at the Shipwreck Rapids water ride at Sea World in San Diego, California. The design is so effective that it is still being used in many modern-day applications. The Archimedes screw was also used to transport water from low-lying areas up to irrigation ditches. The screw was very effective because it got rid of the water and only required one person to operate it. This ship proved to be leaky and Archimedes had to design a device to rid the hull of bilge water. The King of Syracuse requested that Archimedes build the biggest luxury ship possible.
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