The rotating phenomena in life include automatic revolving doors, ceramic tile saw blades, generators of various household appliances, blade heads of fans, steering wheels of automobiles and the rotation of clock hands, all of which are common rotating phenomena in life.

The washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. According to its rated washing capacity, it is divided into two categories: household use and collective use. Because of its low efficiency, windmills are gradually replaced by horizontal rotary axis wooden windmills, vertical windmills, automatic rotor windmills and other windmills.

Property analysis

Rotation simply means that an object needs to move around a point, or it can always move around an axis. This is the phenomenon of rotation. For example, the earth has been going around the sun, and what the earth does is rotate.

When an object rotates, it will not change the shape and size of the whole object, but it should be noted that the rotation angle is not necessarily 180 degrees or 360 degrees.