Fans create air flows with high volume and low pressure. The blade will rotate when exposed to an air stream. Fans work by moving the air that is in the area of the fans. This movement of air will create a breeze. But this breeze itself does not actually feel cool. It is a cooling effect from the fan's air that helps. This air will help to evaporate our sweat faster, thus cooling our skin. The fan contains a motor which is run by electric current that is connected to fan blades by a shaft. This rotor shaft is operated by the motor and able to turn the blades in different speeds. This speed is depending on the speed set for the motor.
When the electric current activates the motor, the rotor shaft spin, in turn moving the blades through the air. The inclination of the fan blades force all the airthat hits their front surface forward. This create a continous movement of the moving stream of air. For your information, the fan does NOT change the temperature of the air!
In older days without air-conditioner, fan is the only household appliance that keep us cool. Although fans take up more spaces compare to air-conditioner that are place on the wall, but it uses less electricity. The creation of the fan is not just amazing but also contributes to the comfort of people.
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