I'm in way over my head, but I'll keep going. Hey this is the internet -- lack of knowledge never stopped folks from talking about stuff before! You're probably much better-informed.
This sound question is very much like the "if a tree falls in the wilderness and nobody is there to hear, does it make a noise?" By sound I mean pressure waves, which exist I guess everywhere (from what I am hearing) except for a complete and total vaccum. But at the level of just a 1-1000 particles per cubic meter, there's not enough matter there to make something like the human eardrum work. So yes, it's sound, but no, we could never hear it. Does that make sense?
Here's one of the comments I sourced for my post. Like I said, I am a complete novice in this area.
This sound question is very much like the "if a tree falls in the wilderness and nobody is there to hear, does it make a noise?" By sound I mean pressure waves, which exist I guess everywhere (from what I am hearing) except for a complete and total vaccum. But at the level of just a 1-1000 particles per cubic meter, there's not enough matter there to make something like the human eardrum work. So yes, it's sound, but no, we could never hear it. Does that make sense?
Here's one of the comments I sourced for my post. Like I said, I am a complete novice in this area.
http://science.slashdot.org/comments.pl?sid=373279&cid=2...