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undershot waterwheel

engineering

Quick Summary

An undershot waterwheel is a type of vertical waterwheel with blades on its circumference that are pushed by water flowing underneath. This design was described by the Roman engineer Vitruvius around 27 BCE and became popular throughout the Roman Empire. Unlike overshot or breast wheels, undershot wheels primarily utilize the energy of moving water rather than its weight.12

Waterwheels were among the earliest machines to harness natural energy sources, initially used for grinding grain and later for tasks like powering sawmills and pumps. Until the advent of steam power during the Industrial Revolution, waterwheels were a primary source of mechanical power.1

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