Vacumm and Sound

[Guest Suzz]

I'm not really sure if this belongs here but oh well, here goes:

 

I read that perfect vacuums are impossible even with the best equipment. Can someone here please answer if this is true, and why. Thanks!

[aommaster]

Yup! True! To make a perfect vacuum, you must have absolutely NO matter or any subatomic particles in a space. To make something like that is impossible, cause no matter how hard you try, there will yet be a little bit of air or some matter in it. Also, actually containing it is impossible. Glass doesn't work! Its impossible. Even space isn't a perfect vacuum!

[Cap'n Refsmmat]

See, if you make a container out of glass or whatever, glass molecules will break off and prevent it from being a real vaccuum, and of course it's hard enough without a perfect vaccuum pump.

[fafalone]

Well in principle it's possible for a small amount of time. If some sort of ultradense shield was invented that was capable of shielding the small massive particles like neutrinos, then a perfect vacuum could exist for a short time. Only a short time because particles continually are created and destroyed due to vacuum flucuations.

[Crash]

What about all the elementary particles that we dont know of......

[Cap'n Refsmmat]

Or create some kind of magnetic field that keeps all particles out.

[JaKiri]

Cap'n Refsmmat said in post # :

Or create some kind of magnetic field that keeps all particles out.

 

You do know that not all particles are charged, right?

[Crash]

MrL_JaKiri said in post # :

 

You do know that not all particles are charged, right?

 

Not by that convential meaning....but we could still find some repulsive force

[Fluent in Lies]

sound cannot travel in a vacume