<span>Hydroelectric power is produced as water passes through a dam, and into a river below. The more water that passes through a dam, the more energy is produced. Once a dam is built, an artificial man-made lake is created behind the dam. Electricity is produced by a device called a turbine.
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The goods were then produced mostly manually. For example, instead of cars, carriages were made of wood and metal and they were made manually and took up to 3 weeks to finish. There were Smiths working with the metal and potters producing pottery. Similarly, clothes were sown by hand and washed by hand, too.
