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Q:Why does the fan turn?
The working principle is that the energized coil rotates under the force of the magnetic field.
Q:How to measure the speed of an electric fan conveniently and precisely?
Assemble the light sensor, then calculate the frequency and calculate the speed after the fan number
Q:What is an electric fan?
Referred to as the fan fan, also known as fan, fan, is a use of motor driving the fan to rotate, to achieve household appliances to accelerate the flow of air
Q:What is the difference between the natural wind and the sleeping wind?
The fan blows for half an hour before the natural wind, and then for half an hour, medium natural wind, and finally blow down the natural wind to the set time
Q:Can the electric fan blow to the notebook computer?
The cooling base effect is similar to that of an electric fan, but if one, the air duct will be better. After all, the bottom of the notebook is the air inlet. The best way to get rid of heat is to clean the dust and change the heat transfer cream
Q:Which items should we pay attention to selecting electric fans?
Select the fan film requires hard, smooth, no bubbles, no scratches, peeling paint, paint show, hanging or different color paint mixed phenomenon.
Q:When did the electric fan start to appear?
In 1883, the factory began mass production of this type of desktop fan.
Q:How to make the electric fan in the house to achieve the best results?
Put the fan in a well ventilated place to increase the speed of air convection
Q:Where does the wind from the electric fan come from?
The Bernoulli principle. Just like an airplane has wings,
Q:What are your misunderstanding blowing ？
That is to use electric fans to cool down and sleep together. When sleeping, the functions of the organs in the body are reduced to the lowest level. All reflexes disappear, immunity declines and diseases are easily induced