[[File:Archimedes-screw one-screw-threads with-ball 3D-view animated smal back.gif|alt=Reverse action of the "Archimedean screw"|thumb|249x249px|Animation showing how Archimedes screws screw, hydrodynamic screw, water screw or Egyptian screw', is one of the earliest hydraulic machines. Using Archimedes screws as water pumps (Archimedes screw pump (ASP) or screw pump) dates back many centuries. As a machine used for transferring water from a low-lying body of water into irrigation ditches, water is pumped by turning a screw-shaped surface inside a pipe. In the modern world, Archimedes screw pumps are widely used in wastewater treatment plants and for dewatering low-lying regions. Archimedes Screws Turbines (ASTs) are a new form of small hydroelectric powerplant that can be applied even in low head sites. The Archim
[[File:Archimedes-screw-threads one-screw-threads with-ball 3D-view animado estrecho back.gif Áthaalt=Acción inversa de la "srueba de Arquimedes" thumb 249x249px  Animación que muestra cómo Archimedes estirar la parafusa, la parafusa hidrodinámica, la parafusa de agua o la parafusa egipcia, es una de las primeras máquinas hidráulicas. Usando las parafusas de Arquimedes como bombas de agua (pompas de parafusa de Arquimedes (ASP) o bombas de parafusa) se remonta a muchos siglos. Como una máquina utilizada para transferir el agua de un cuerpo de agua de bajo nivel a las fosas de irrigación, el agua se bombea transformando una superficie en forma de parafusa dentro de un tubo. En el mundo moderno, las bombas de parafusa de Archimedes se utilizan ampliamente en plantas de tratamiento de aguas y para