To the question: sound in space. please explain, will a person hear his own voice in outer space?)) asked by the author Salt the best answer is As we already know, sound waves can only travel through matter. And since there are practically no such substances in interstellar space, sound cannot move through this space. The distance between the particles is so great that they will never collide with each other. Therefore, even if you were close to the explosion of a spaceship in this space, you would not hear a sound. From a technical point of view, this statement can be disputed; one can try to prove that a person can still hear sounds in space.
Let's look at this in more detail: As we know, radio waves can travel through space. This means that if you find yourself in space and put on a spacesuit with a radio receiver, then your friend will be able to transmit to you a radio signal that, for example, pizza has been brought to the space station, and you will actually hear it. And you will hear it because radio waves are not mechanical, they are electromagnetic. Electromagnetic waves can transmit energy through a vacuum. Once your radio receives the signal, it converts it into sound that will travel quietly through the air in your spacesuit.
-- let's consider another case: You are flying in space in a spacesuit, and accidentally hit your helmet on a space telescope. According to the idea, as a result of the collision, sound should be heard, since in this case there is a medium for sound waves: the helmet and the air in the spacesuit. But despite this, you will still be surrounded by vacuum, so an independent observer will not hear a sound, even if you bang your head against the satellite many times.
-- imagine that you are an astronaut and you are assigned to perform a certain task.
You decided to go into space, when you suddenly remembered that you forgot to put on your spacesuit. Your face will immediately be pressed against the shuttle, there will be no air left in your ears, so you will not be able to hear anything. However, before the “steel shackles” of space strangle you, you will be able to make out several sounds through bone conduction. In bone conduction, sound waves travel through the bones of the jaw and skull to the inner ear, bypassing the eardrum. Since there is no need for air in this case, you will hear the conversations of your colleagues in the shuttle for another 15 seconds. After this, you will probably lose consciousness and begin to suffocate.
This all indicates that no matter how sophisticated Hollywood filmmakers try to explain audible sounds in space, all the same, as proven above, a person does not hear anything in space.

It is no secret to any inquisitive high school student studying astronomy that there is no sound as such in space. It's simple: there is a vacuum in space, and sound cannot exist there. But scientists persistently search for and record, reproduce and distribute certain signals from space, sounds and even space music. How?

The first sound from space was recorded by the American Voyager satellite. After which, Nasa even released an album with “space music”. These are electromagnetic waves processed and superimposed on the frequency of the audio range that the human ear hears. The result exceeded all imaginable expectations. The stunning, mesmerizing “moans” and “sighs” of space truly deserve to be called “cosmic music”.

Radio signals from Saturn

These eerie unknown sounds came from the poles of Saturn, they were recorded during the exploration of the planet by the Cassini spacecraft. Research has revealed radio sources above the surface of the planet, freely moving in Saturn’s magnetic field, and “crowding” at the poles. Astrophysicists have come to the conclusion that the sources are charged particles that accidentally entered the planet’s atmosphere. Having processed these signals and converted them into an audio file, an excellent result was obtained.

Sound from a pulsar

This crackling, pulsating, slightly helicopter-like sound comes from the Vela pulsar. Pulsars are small, degenerate neutron stars that emit a pulse of polarized radiation. At the center of Vela is the remnant of a star explosion that occurred 10 thousand years ago. It is he who makes this sound.

Electromagnetic activity of Io

Sound recorded as Galileo flew over Io's south pole on October 16 and August 6, 2001. The sensation of whispering and even speech is just a disturbance of the electromagnetic field. The researchers mapped the electromagnetic waves in the plasma around Io to sound waves.

In modern cinemas, the special effects are simply breathtaking. A person sits in an ordinary chair and truly enjoys watching a new action film, a new science fiction film. Different images and characters of a violent space battle appear on the screen every now and then. Strange sounds echo throughout the cinema hall, sometimes the noise of a spaceship engine, sometimes a grinding sound. It seems to you that the enemy is pointing a laser at you, and not at the ship in the film, and the chair shakes every now and then, as if “your” spaceship is being attacked from all sides. Everything we see and hear strikes our imagination, and we ourselves become the main characters of this film. But if we happened to be personally present at such a battle, would we be able to hear anything at all?

If you try to answer this question only from the point of view of science fiction films, then the results are contradictory. For example, the key phrase in the advertisement for the film “Aliens” was the following line: “In space, no one can hear you scream.” The short-lived television series Firefly did not use any sound effects at all for the space battle sequences. However, in most movies, such as Star Wars and Star Trek, sound effects for many of the combat scenes in outer space are simply abundant. Which of these fictional universes can you believe? Is it possible that a person in space would not hear a spaceship rush past him? And what do we hear in space anyway?

Initially, to conduct such an experiment, researchers from HowStuffWorks planned to send one of their specialists into orbit to observe for themselves whether sound could actually travel through space. Unfortunately, this turned out to be too expensive a project. In addition, a flight into space is a difficult test for the person himself, because some people in space begin to experience something like seasickness. Therefore, all the hypotheses below are based solely on previously obtained scientific observations. However, before diving deeper into this question, there are two important factors to consider: how sound travels, and what happens to it in space. By analyzing this information, we can answer the question we posed: can people hear sounds in space?

Weather in space

Did you know that space also has its own weather? There are special scientists who make weather forecasts in space. Next we will talk about how sound moves and why a person perceives it.

Sound moves in mechanical (or elastic) waves. Mechanical wave – mechanical disturbances propagating in an elastic medium. In the case of sound, such a disturbance is a vibrating object. In this case, the environment can be any sequence of connected and interactive particles. This means that sound can travel through gases, liquids and solids.

Let's look at this with an example. Imagine a church bell. When the bell rings, it vibrates, which means that the ringing itself travels very quickly through the air. As the bell moves to the right, it pushes away air particles. These air particles in turn push other adjacent air particles, and this process occurs in a chain. At this time, a different action occurs on the other side of the bell - the bell pulls adjacent air particles, and they, in turn, attract other air particles. This pattern of sound movement is called a sound wave. The vibrating bell is the disturbance, and the air particles are the medium.

Sound moves unhindered through the air. Try placing your ear against any hard surface, such as a table, and close your eyes. At this time, have another person tap his finger on this surface. The knock in this case will be the initial disturbance. Every time you hit the table, vibrations will go through it. The particles in the table will collide with each other and form a medium for sound. Particles in the table will collide with air particles that are between the table and your eardrum. The movement of a wave from one medium to another, as occurs in this case, is called transmission.

Speed ​​of sound

The speed of a sound wave depends on the medium through which it moves. In general, sound travels fastest in solids than in liquids or gases. Also, the denser the medium, the slower the sound moves. In addition, the speed of sound varies with temperature - on a cold day the speed of sound is faster than on a warm day.

The human ear perceives sound with a frequency from 20 Hz to 20,000 Hz. The pitch of a sound is determined by its frequency, the volume is determined by the amplitude and frequency of sound vibrations (the loudest at a given amplitude is a sound with a frequency of 3.5 kHz). Sound waves with a frequency below 20 Hz are called infrasound, and with a frequency above 20,000 Hz - ultrasound. Air particles collide with the eardrum. As a result, wave vibrations begin in the ear. The brain interprets such vibrations as sounds. The process of perceiving sounds with our ears is very complex.

All this suggests that sound simply needs a physical medium through which it can travel. But is there enough material in space to create such an environment for sound waves? This will be discussed further.

But before answering the question asked above, it is necessary to define what “space” is in our understanding. By space we mean the space of the Universe beyond the Earth's atmosphere. You've probably heard that space is a vacuum. A vacuum means that a given place is completely free of any substances. But how can space be considered a vacuum? In space, after all, there are stars, planets, asteroids, moons and comets, not counting other cosmic bodies. Is this material not enough? How can space be considered a vacuum if it contains all these massive bodies?

The thing is that space is huge. Between these large objects are millions of miles of empty space. This empty space - also called interstellar space - contains virtually nothing, which is why space is considered a vacuum.

As we already know, sound waves can only travel through matter. And since there are practically no such substances in interstellar space, sound cannot move through this space. The distance between the particles is so great that they will never collide with each other. Therefore, even if you were close to the explosion of a spaceship in this space, you would not hear a sound. From a technical point of view, this statement can be disputed; one can try to prove that a person can still hear sounds in space.

Let's look at this in more detail:

As you know, radio waves can travel in space. This means that if you find yourself in space and put on a spacesuit with a radio receiver, then your friend will be able to transmit to you a radio signal that, for example, pizza has been brought to the space station, and you will actually hear it. And you will hear it because radio waves are not mechanical, they are electromagnetic. Electromagnetic waves can transmit energy through a vacuum. Once your radio receives the signal, it converts it into sound that will travel quietly through the air in your spacesuit.

Consider another case: You are flying in space in a spacesuit, and you accidentally hit your helmet on a space telescope. According to the idea, as a result of the collision, sound should be heard, since in this case there is a medium for sound waves: the helmet and the air in the spacesuit. But despite this, you will still be surrounded by vacuum, so an independent observer will not hear a sound, even if you bang your head against the satellite many times.

Imagine that you are an astronaut and you are assigned to perform a certain task.

You decided to go into space, when you suddenly remembered that you forgot to put on your spacesuit. Your face will immediately be pressed against the shuttle, there will be no air left in your ears, so you will not be able to hear anything. However, before the “steel shackles” of space strangle you, you will be able to make out several sounds through bone conduction. In bone conduction, sound waves travel through the bones of the jaw and skull to the inner ear, bypassing the eardrum. Since there is no need for air in this case, you will hear the conversations of your colleagues in the shuttle for another 15 seconds. After this, you will probably lose consciousness and begin to suffocate.

This all indicates that no matter how sophisticated Hollywood filmmakers try to explain audible sounds in space, all the same, as proven above, a person does not hear anything in space. Therefore, if you really want to watch real science fiction, we advise you next time you go to the cinema to close your ears when some battles take place in vacuum space. Then the film will seem truly realistic and you will have a new topic of conversation with your friends.

And what do we hear in space anyway? Is it possible that a person in space would not hear a spaceship rush past him? Did you know that space also has its own weather? And since there are practically no such substances in interstellar space, sound cannot move through this space. Let's look at this in more detail: As we know, radio waves can travel through space.

Once your radio receives the signal, it converts it into sound that will travel quietly through the air in your spacesuit. You're flying in space in a spacesuit, and you accidentally hit your helmet on a space telescope.

You decided to go into space, when you suddenly remembered that you forgot to put on your spacesuit. Your face will immediately be pressed against the shuttle, there will be no air left in your ears, so you will not be able to hear anything. However, before the “steel shackles” of space strangle you, you will be able to make out several sounds through bone conduction.

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Since there is no need for air in this case, you will hear the conversations of your colleagues in the shuttle for another 15 seconds. Perhaps you will hear minimal sound coming through your own body. However, you won’t be able to create it because it also requires air.

08/09/2008 21:37 of course. It’s all Hollywood directors who are messing with people’s brains with scenes and shots in space. In space it’s impossible to feel speed or sound or anything else!!

To humans - no Sound is periodic pressure fluctuations that propagate in any medium, for example in a gas. For us to hear sound, it must be loud enough. If a person were in interplanetary or interstellar space, he would not hear anything (however, a person, in principle, cannot be there). In modern cinemas, the special effects are simply breathtaking. A person sits in an ordinary chair and truly enjoys watching a new action film, a new science fiction film.

It seems to you that the enemy is pointing a laser at you, and not at the ship in the film, and the chair shakes every now and then, as if “your” spaceship is being attacked from all sides. Everything we see and hear strikes our imagination, and we ourselves become the main characters of this film. However, in most movies, such as Star Wars and Star Trek, sound effects for many of the combat scenes in outer space are simply abundant.

In addition, a flight into space is a difficult test for the person himself, because some people in space begin to experience something like seasickness. There are special scientists who make weather forecasts in space. Next we will talk about how sound moves and why a person perceives it.

02/02/2012 00:40Did you go to school at all? There is a technical and physical vacuum

In a vacuum, they can only fly in a straight line if they do not have steering engines. 03/22/2010 22:05 Nya, no, if you look at the universe not as a dark, black ball in which galaxies, planets, asteroids, etc. float. There is a vacuum in your head. If you are interested in what is really happening in space, watch documentaries, not science fiction films. 05/14/2012 10:23 people, does anyone know what happened before the big bang! They say that at that time our universe fit into a small point the size of a pinhead!

Plus there is an interesting “Casimir Effect”, which seems to have been proven, which means a wave effect is possible even in a vacuum, which seems to hint... In its original understanding, the Greek term “cosmos” (order, world order) had a philosophical basis, defining a hypothetical closed vacuum around The Earth is the center of the Universe.

This all indicates that no matter how sophisticated Hollywood filmmakers try to explain audible sounds in space, all the same, as proven above, a person does not hear anything in space.