Archimedes' Screw is a simple machine invented by the ancient Greek mathematician Archimedes. It consists of a helical screw inside a hollow tube, designed to lift water from a lower level to a higher one. When the screw is turned, water is trapped in the screw's spiral and carried upward, making it useful for irrigation and draining. This device operates on the principle of mechanical advantage, allowing a small amount of effort to move a larger volume of water. Archimedes' Screw has been used for centuries and remains relevant in modern engineering and water management systems.