How can the cross windmill turn by itself?

Introduction How can the cross windmill turn by itself? The cross windmill can turn by itself when there is wind. The windmill is more of a toy that I couldn't put down when I was a child. I really like the sound of the wind blowing. It seems that

How can the cross windmill turn by itself?

The cross windmill can turn by itself when there is wind.

The windmill is more of a toy that I couldn’t put down when I was a child. I really like the sound of the wind blowing. It seems that the whole world comes alive. I can still see it on the street occasionally. I saw a child holding a windmill in his hand and blowing it hard with his mouth. It was extremely simple. A piece of plastic paper was cut, flipped and buckled into a windmill. No matter how strong the wind was, it could not produce the sound in my memory. .

In the past, windmills were seasonal. Farmers had time to make windmills during their slack time in winter, and they could only be sold at temple fairs during the Spring Festival. In the past, windmills were a symbol of welcoming spring, or they were called spring. toys.

A windmill is a power machine that converts wind energy into mechanical energy. It uses adjustable blades or stepped horizontal wooden wheels to collect wind power. It is a power mechanical device that utilizes wind power and can drive other machines to generate electricity and lift water. , grinding noodles, pressing oil, etc.

The energy converted by the wind energy generator is actually consumed by the car itself. This is not a good thing to say.

There is a problem in understanding this matter. If there is no wind, where can there be wind energy?

But if there is wind, it is very complicated. For example, if a car goes downwind and the wind speed is greater than the car speed, wind energy can generate electricity.

And cars will also save energy.

In the headwind, the resistance of the car will increase compared to moving forward without a generator, which requires additional energy, but this

The energy consumed by the additional resistance and the electrical energy you obtain are uncertain. size relationship.

Summary:

Without wind, there is no wind energy. In any case, the electric energy comes from the kinetic energy of the car, and your windmill will also push the originally still air.

Loss of energy.

If there is wind, especially strong wind,

If the wind is favorable, it may not produce resistance, but propulsion, which can generate electricity.

If the tailwind speed is not enough for the car or the headwind problem is too complicated, it will not be clear for a while.

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