A water mill is a structure that uses the energy of flowing or falling water to perform work. Typically built near rivers or streams, it harnesses the movement of water to turn a large wheel, which then powers machinery inside the mill. This technology has been used for centuries to grind grain, saw wood, and perform other tasks. Water mills played a significant role in the development of early industrial societies. They were essential for producing flour, which was a staple food, and contributed to the growth of communities. The invention of the water mill is often associated with advancements in medieval technology and agriculture.