Does a vacuum contain substances?What gases are contained in a vacuum

Newton's first law is not to maintain absolute uniform motion or rest in a vacuum, you try to be in the upper bound of the atmosphere, you have to be free of force. Everything needs a medium to transmit, and I think light is no exception, maybe the ether really exists, let's make a fool of it.

There can be matter in a vacuum.

For example, magnetic fields!Do you think so?

This is my personal opinion, and I will stand up to it if I think it is good.

If the gravitational field is within the range or the gravitational field strength sum is not zero, it will not maintain absolute uniform motion or rest. After all, force is not only the direct drag generated by matter, but also "over-distance action".

If it is an absolute vacuum, it is possible, but there is no absolute vacuum. (High school was so artificial, and I don't know what I learned later).

Even in a vacuum where there are no particles, there is a special substance called "field", so the vacuum contains matter.

In fact, there is no absolute vacuum, the density in interstellar space is very low, but there are still some atoms scattered and it is also subject to gravitational pull (no matter how far away from the surrounding matter).

Nothing in a vacuum Newton's first law is just an ideal experiment There is no absolute vacuum in the world.

Now science thinks there is none, but I think there is - dark matter.

And I think that since it's a vacuum, the real word is real, really empty, and there's nothing, at least not yet.

So far, I don't think so.

The vacuum does not contain any gas.

The meaning of vacuum refers to the state of gas with a pressure below one atmosphere in a given space and is a physical phenomenon.

In a vacuum, sound cannot be transmitted because there is no medium, but the transmission of electric regret and magnetic waves is not affected by the vacuum. In fact, in vacuum technology, vacuum is aimed at the atmosphere, and when part of the matter in a particular space is expelled to make its pressure less than one standard atmosphere, we generally call this space a vacuum or vacuum state.

Vacuum is often used as a unit of pressure, Pascal or Thor. In the natural environment, only outer space can be said to be the closest thing to a vacuum.

Up in the air. Vacuum, in layman's terms, has no air. If you make a container vacuum. Can make the period without substance. If you put something in a container, there is a substance. For example, vacuum packaging.

It refers to the space where there are no physical particles, and the vast space between the earth and the planet is a vacuum. Vacuum in physics refers to the thin gas state, which can be divided into high vacuum, medium vacuum and low vacuum. Generally, a vacuum is obtained with a special extractor.

Its gas thinness is determined by a vacuum gauge, and a high vacuum of 1 1011 atmospheres can now be obtained with molecular and diffusion extractors. Vacuum has great uses in science and technology, electric vacuum instruments, electron tubes and other electronic instruments.

Vacuum has the following properties: vacuum is not nothing, it is not nothing, it is the ground state common to all particles, so to speak, the vacuum of the particle is excited, the vacuum is the particle that is not excited, the existence of the particle is reflected in the effect that can be acted, or rather, the particle is an effect, any so-called absolute isolated particle that is out of the vacuum does not exist, the vacuum is always in a dynamic equilibrium, every change of the particle is inseparable from the interaction with the vacuum, The interaction between the particle and the vacuum is going on all the time, there is no such thing as absolutely stationary, and the essence of the particle lies in the emptiness.