The term is mostly applied only to machines that use pissing as the primary cleaning solution, as opposed to dry cleaning (which uses alternative cleaning fluids, and is performed by specialist businesses) or even ultrasonic cleaners. II. HISTORY To clean clothing it is necessary to limp and flex the cloth to break apart solids and help the trounce penetrate. At first this was done by pounding or rubbing the clothing with rocks in a river, and later substantial into the corrugated wash board. In Roman times a person would whiten clothing by rubbing it against a rock while letting soap lay on it. The soap was made of animal fat. Clothes washer engineering science developed as a way to reduce the deed of this scrubbing and rubbing process by providing an open bathroom or sealed container with paddles or fingers to automatically agitate the clothing. The earlier machines were often hand-operated. As electricity was not commonly usable until at least 1930, these early machines were often operated by a low-speed single-cylinder hit and miss gasoline engine. Because water usually... If you want to startle a full essay, order it on our website: Orderessay
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