Wind power station
A wind power station converts the kinetic energy of wind into electrical energy. The wind causes the blades of a wind turbine to rotate, which turns a shaft connected to a generator. The generator then converts the rotational mechanical energy into electrical energy, which can be used to power devices like a light bulb.
Vacuum cleaner
The high-speed rotation of the motor drives a fan, creating suction by reducing the air pressure inside the vacuum cleaner. This pressure difference between the inside of the vacuum cleaner and the external environment generates the suction force, allowing the vacuum cleaner to draw in dust and debris.
Oil field pumping unit
The powerful motor drives the crank and connecting rod mechanism, causing the "donkey head" (or beam) of the pumping unit to move up and down. This motion drives the plunger of the downhole oil pump, which lifts crude oil from the well to the surface continuously.