Essay about a small invention that uses wind as an energy source (100~150 words)

The wind turbine is like a big windmill, it is silver gray. Each of these windmills is about 40 to 50 meters high, and it takes five or six people to hug them. Above the wind turbine is a rotating impeller, the impeller is three blades. The impeller does not rotate very fast, even if it rotates, the three blades can be seen clearly. In the center of the impeller is the generator, and the wind turbine is wrapped up in it, so we can't see it. When we look at the windmills, there are almost no windmills that are not rotating, and even though the wind is very light, they are still rotating. When the windmill is turning, the whole windmill makes a sound. When I listened to the windmill, my ears were almost deafened.