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Vorbis
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Hello again To my understanding, sound is vibrating particles in the air. Does that mean that in Space you can't hear anything because its mainly a vacuum?
theneedtoknow said:In space, no one can hear you scream!
pallidin said:Well, in one sense it's true but in another it's not.
For example, if you were outside a spaceship and rang a simple bell, that sound would not propagate.
However, if while outside you set-off a gaseous explosion, the expanding gases would provide a medium for sound waves.
In other words, if 2 spacecraft were relatively close to each other and one exploded, the violently expanding gases and materials impacting the second craft would most definately be "heard" by those inside when the vibrational impact affects the hull and then the air inside the second craft.
pallidin said:Yes, we would hear it!
The variations would take a very long time(many years I suppose) and would likely degrade/integrate into some sort of low-level "hum"
Yes, but there isn't enough coordinated/coherent energy in those collisions to create audible sounds. The vibrations have to be in phase to cause your eardrum to vibrate.Vorbis said:Now my brain is hurting. Are vibrations in particles caused by other particles banging into them? Does sound genterate every time a particle vibrates?
pallidin said:Yes, we would hear it!
The variations would take a very long time(many years I suppose) and would likely degrade/integrate into some sort of low-level "hum"
Vorbis said:But would the vibrations stop after a few minutes to where the atoms can't collide to make a sound?
No, sound cannot travel through a vacuum. Sound is produced by the vibration of particles, and since a vacuum contains no particles, there is no medium for the sound to travel through.
In space movies, the noises are added for dramatic effect. In reality, there is no sound in the vacuum of space, so any sounds heard in space movies are not scientifically accurate.
Yes, astronauts can hear each other in space, but only if they are wearing a helmet or in a pressurized environment. The sound is transmitted through the vibrations of the helmet or spacecraft walls, not through the vacuum of space.
Astronauts communicate in space through radio transmissions. They wear headsets with microphones and speak into a radio that is connected to their spacesuit or spacecraft. They can also communicate through hand signals and written notes.
Yes, there is a way to hear sound in space, but it requires special equipment. NASA has developed a technology called the "bone conduction microphone" which allows astronauts to hear sound by transmitting vibrations directly to their inner ear through their skull. However, this is not the same as hearing sound through the air, and it is only used for communication purposes.