There is no air in space, is it impossible for two people to speak?

There is no air in space, is it impossible for two people to speak?

As we all know, humanity has now stepped into the space realm, and through the astronauts' responses, we find two people talking in outer space, and they can't hear them, not just the other side, even if I don't know what I just said. What is it, this phenomenon was surprised when it was discovered.

When it can't get through, the sound returns to the body, and although it can't be heard, the sound is still true, a statement that can not only prove outer space, but the scientists involved have already completed the laboratory. In this experiment, they created a space without air and closed it completely, trying to make it a vacuum environment.

Astronauts in space can communicate with each other. There's a lot of air on the space ship, so they can talk properly. When they walk, they pass through the radio in their helmets.

Talk about. Radio wave.

They can travel in space, but they have no sound. They are radios, and they must be converted into sound by the astronauts' headphones.

There is gas in space, and it can actually propagate sound waves, just like the air on Earth can make sounds. The difference is that the density of interstellar gas clouds is much lower than that of the Earth's atmosphere. So if a sound wave passes through a huge cloud of gas in space and we try to listen, there will only be a few atoms that will hit our eardrums.

We can't hear because our ears aren't sensitive enough. If we have a very large sensitive microphone, we can detect these sounds, but it will be silent to our human ear.

Non-gaps can also vibrate: for example, a solid earth or even the sun. While sound can travel through Earth, it cannot travel from Earth to Mars because there is essentially no matter (whether gaseous, liquid or solid) between the two planets.

In this way, the vibrations of sound cannot travel in the space of space, but humans can indeed hear any sound in space.

There is air transmission, of course, the conversation of two people is inaudible, and we have also seen many space movies in spaceflight, which are communicated in sign language and cannot speak, because they can't hear the transmission without air when they speak.

Yes, because air is the medium of transmission, and without air, two people cannot be heard talking.

Yes. Because space belongs to a vacuum state, there is no air, and air is the medium needed for sound propagation, and sound cannot be transmitted without a medium, since it cannot be transmitted, then the other party cannot hear it at all.

Many people think that the space environment is a vacuum environment, and if there is a sound in space, it is difficult for people to hear it. Because the propagation of sound requires a medium, there is no medium in space, so from a physical point of view, even if a bomb hits a spaceship.

Humans can't hear the sound.

But some people have raised the question, is there really no way to transmit sound in space? Scientists explained that in space, after astronauts enter space, there is no way to communicate by talking, in the same way, if astronauts appear around them, there are objects ** or collision sounds, astronauts can not hear, can only use their eyes to see, to guess. But the scientist adds that this does not mean that the universe is a complete vacuum.

Some scientists have put forward a point of view, that is, there are hundreds of millions of stars in the universe, and on individual stars, sound can be transmitted, such as the earth, on the earth, it is easy to hear sound, because there are many kinds of gases on the earth, and these gases are actually a good medium for sound propagation, but there are also many stars in the universe, and there is no air on these stars. There is no way for sound to travel.

However, scientists add that whether it is a planet full of gas like the Earth, or a planet with no air at all, it is very rare in the universe, so by analogy, although there are the largest number of stars in the universe, there are also many areas where there is no matter, and these regions belong to the relatively vacuum region.

However, scientists explained that on the whole, although most of the universe is free of air, there are still a few areas where air exists, so scientists finally define that if strictly speaking, the universe is not a completely vacuum environment, but a relatively vacuum environment, so this can show that sound can be transmitted in the universe, but the sound of transmission is decibels.

It's very small, and human auditory receptors can't sense it.

No, sound propagation requires a medium, and generally the medium for spreading sound on the earth is air, and there is no air in space, so sound cannot be propagated in space.

You can't spread it, because in the process of propagation, it will be carried out by something in the air, and the condition for propagation is that you need air, but there is no air in space.

Sound cannot be transmitted in space, because the propagation of sound requires a medium, and it cannot be transmitted without moderation in space, and sound cannot be heard at all.

There is no air in space, so sound will not travel in space, because sound has to travel through the medium, and there is no air in space, so it cannot be transmitted.

There is no propagation of sound in a vacuum, because the propagation of sound requires a medium, and there is no medium in a vacuum, so there is no propagation of sound.

Of course, sound cannot be transmitted in space, because there is a vacuum in space, and sound propagation requires a medium, so it cannot be transmitted.

Of course not, because the propagation of sound requires a medium, and there is no air in space, so sound cannot travel in space.

No, because there is no air on it, the sound cannot travel.

There is no air in space, sound travels through the air, there is no air in space, there is no way to transmit.

Because there is no air in space that is needed for sound propagation, we can speak on Earth because there is air propagation and space does not.

Sound needs a medium to transmit, and space is a vacuum environment, so sound cannot be transmitted, so sound cannot be heard.

In life, as long as we are close enough, we can hear speech, speech is the transmission of sound, whether it is the sound of the wind or the voice of people or the sound of animals, as long as our ears can hear normally, then there will be sound in space? Can people hear sound in space? We are used to listening to the usual voice, and we don't think he is very specialIn fact, the propagation of sound requires a medium, and there is no such medium in space, so the sound cannot be heard in space, and this sound is called air.

There is no sound in space, because there is no air in space, we all know that! Without air, sound cannot be conducted. That's why people can't hear in space!

There is no sound in space, and people cannot hear sound in space, because space is vacuum.

There is no sound in space, and people can't hear sound in space, because there is no medium to transmit sound waves in space, so even if the universe happens, it can't be heard.

The reason why we are able to hear sound is because there is air on the earth. There are some air molecules in the air that vibrate and thus produce sound waves, and this is the truth of the sound we hear. But when the vibration is not 20 hertz to 20 kilohertz, we can't hear those sounds.

Absolute vacuum is an environment where there is nothing: there is no air and no other substance. Just like absolute zero is a point, it only exists in theory.

A classic experiment to demonstrate the properties of a vacuum is to place a ringing bell in a closed bell-shaped glass container, and use a pump (bèng) to slowly pump out the air in the container to bring it close to a vacuum.

Generate excavation. That's why no one can hear you shouting in outer space.