Originally posted by: jordanz
This just inspired another question:
If you had a room, a sealed off, air filled room (ie. your normal office) and you had it surrounded by another room, which is a "vacuum".. Would the room inside the vacuumed room be soundproof from any outside noise?
I'm thinking a different way, as in.. there is a room, and there is another thin 1-inch wall that is a vacuum on the inside. But it's not actually touching the middle room, its more or less just surrounding it. Get me?
Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
Originally posted by: illusion88
Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
I'm not going to answer this. I refuse to believe this is a legitimate question.
Is there really sound in space?
Actually...yes!!
What is sound? It is a pressure wave. So long as you have some kind of gaseous medium, you will have the possibility of forming pressure waves in it by 'shocking' it in some way.
In space, the interplanetary medium is a very dilute gas at a density of about 10 atoms per cubic centimeter, and the speed of sound in this medium is about 300 kilometers/sec. Typical disturbances due to solar storms and 'magneto-sonic turbulence' at the earth's magnetopause have scales of hundreds of kilometers, so the acoustic wavelengths are enormous. Human ears would never hear them, but we can technologically detect these pressure changes and play them back for our ears to hear by electronically compressing them.
Originally posted by: spidey07
Originally posted by: illusion88
Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
I'm not going to answer this. I refuse to believe this is a legitimate question.
I agree.
Something is very wrong here.
No way that is a legitimate question unless the OP hasn't been to elementary school yet.
A radio transmission is not a sound wave. It's an electromagnetic (EM) wave, like light (but on a different frequency).Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
Originally posted by: sonz70
Sound travels by vibrations, since it cannot make constant vibrations in space..it does not travel through "space"
/grade one science lesson
Originally posted by: myusername
Well look .. the answer is obvious and easily demonstrable by a bell jar and an alarm clock .. but I want to know -
Isn't sound energy? Where does the energy go? The wall of the vessel is not absorbing it - it simply ceases to be![]()
Short answer: it turns into heat and dissipates.Originally posted by: myusername
Well look .. the answer is obvious and easily demonstrable by a bell jar and an alarm clock .. but I want to know -
Isn't sound energy? Where does the energy go? The wall of the vessel is not absorbing it - it simply ceases to be![]()
Originally posted by: hjo3
A radio transmission is not a sound wave. It's an electromagnetic (EM) wave, like light (but on a different frequency).Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
An actual radio, like in your car, has electronics that interpret the EM wave and process it into signal that can be sent to the speakers to produce sound.
Sound waves are longitudinal, electromagnetic waves are transverse. You need some kind of matter to send longitudinal waves through (solid, gas, liquid). Transverse waves don't require matter to move through.
Originally posted by: hjo3
A radio transmission is not a sound wave. It's an electromagnetic (EM) wave, like light (but on a different frequency).Originally posted by: Ctrackstar126
doesn't a radio use sound waves? Yea I thought so what country you grow up in?
An actual radio, like in your car, has electronics that interpret the EM wave and process it into signal that can be sent to the speakers to produce sound.
Sound waves are longitudinal, electromagnetic waves are transverse. You need some kind of matter to send longitudinal waves through (solid, gas, liquid). Transverse waves don't require matter to move through.
Originally posted by: jordanz
I really like this idea. I feel as though my little vacuum room is possibly. All I'm thinking is I have two rooms (encased in a housing structure of some sort), one inside another, but the outside one is only maybe 3-4ft thick. This outside room is propped on stilts, in which the inside room is the same way just propped up on the inner-walls of the outside room.
Now I just need to know how to make a vacuum, and when I buy a house, I can hide in this room forever. No one will find me. My evil plans are coming together.
Idiot, everyone knows it rotates them 270 degrees. Jeez.Originally posted by: ironwing
So that's what a rectifier does? Takes longitudinal waves, rotates them 90 degrees to become transverse waves, and sends them back out? Cool.
Originally posted by: deathkoba
So if two people about 10 feet apart yelled at each other in space (without the bubble head thing) they wouldn't hear each other at all? I find that hard to believe.
Originally posted by: spidey07
Yah know, I remember this from 2'nd grade science. WTF is wrong with our school system?
Originally posted by: hjo3
Sound waves are longitudinal, electromagnetic waves are transverse. You need some kind of matter to send longitudinal waves through (solid, gas, liquid). Transverse waves don't require matter to move through.
But then the inner room will have contact with the outer room and it won't be soundproofed. To do it right, you'd need to build them in zero gee or rig up something with very powerful electromagnets.Originally posted by: jordanz
I really like this idea. I feel as though my little vacuum room is possibly. All I'm thinking is I have two rooms (encased in a housing structure of some sort), one inside another, but the outside one is only maybe 3-4ft thick. This outside room is propped on stilts, in which the inside room is the same way just propped up on the inner-walls of the outside room.
Now I just need to know how to make a vacuum, and when I buy a house, I can hide in this room forever. No one will find me. My evil plans are coming together.
Well, waves on water are logitudinal, but you have a point with the string. Let me amend that to: transverse waves require either a solid medium or no medium.Originally posted by: dighn
Originally posted by: hjo3
Sound waves are longitudinal, electromagnetic waves are transverse. You need some kind of matter to send longitudinal waves through (solid, gas, liquid). Transverse waves don't require matter to move through.
transverse waves don't require matter to propagate? what about wave on a string? surface of water?I think light is just a special case, it's not its "transverseness" that allows it to travel in vacuum.
