How does a washing machine clean our clothes?
All washing machines work by using a mix of mechanical energy, thermal energy, and chemical action. Mechanical energy is employed by the rotation of an agitator (a simple device that moves back and forth) in top loaders, or by the tumbling action of a drum in front loaders. Thermal energy is used in the temperature of the water. Chemical action involves the detergent and water mix that works to remove dirt. Once you load your clothes, add laundry detergent, and push the buttons or dials to select a temperature, agitation strength, rinse cycle, and time duration, the machine does the rest of the job. It stirs (or washes) clothes with its agitator or drum, drains the dirty water, and follows it with a spin of clothes to remove the remaining water. In order to do its job, a washing machine has an inner and outer tub. The inner tub, which contains the agitator, holds the clothes and helps in the removal of water. It is attached to a gearbox, which in turn is attached to a black metal frame, which holds the machine’s motor as well. The outer tub is bolted to the washer’s body. The back of the machine has hook-ups for a hot and cold water line. After the machine has performed the washing, rinsing, and spinning processes, the clean clothes are ready for the dryer.