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Science Section => Science General Discussion => Topic started by: Solitary on August 15, 2013, 03:02:08 PM

Title: Is there sound in space?
Post by: Solitary on August 15, 2013, 03:02:08 PM
:-k  There is sound in space. Sound is a pressure wave, and as long as there is some kind of gaseous medium, there is the possibility of forming pressure waves in it. 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 per second.

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.  :-o  Solitary
Title: Re: Is there sound in space?
Post by: Colanth on August 15, 2013, 05:06:00 PM
Is there sound in space?  No.  Are there pressure waves in space?  Yes.  "Sound" is a pressure wave audible by the human ear.
Title: Re: Is there sound in space?
Post by: aitm on August 15, 2013, 06:28:06 PM
Quote from: "Colanth"Is there sound in space?  No.  Are there pressure waves in space?  Yes.  "Sound" is a pressure wave audible by the human ear.

 :-k

and non-human ears?
Title: Re: Is there sound in space?
Post by: Solitary on August 15, 2013, 06:33:22 PM
Quote from: "Colanth"Is there sound in space?  No.  Are there pressure waves in space?  Yes.  "Sound" is a pressure wave audible by the human ear.


Right! But we can technologically detect these pressure changes and play them back for our ears to hear by electronically compressing them, so they are audible, how else could we know about them being a sound? If what you say is true, how can dogs hear sounds we can't?  :wink: Solitary
Title: Re: Is there sound in space?
Post by: Jutter on August 15, 2013, 07:02:07 PM
Depends on which sci-fi movie you're watching. Which leads me to believe the introduction of a fourth wall, serving as an auxillary membrane, can make spaceshipwarpdrivelaserblast sounds audible to a sufficiently cooperative audience, granted they're on the post-production side of said membrane.
Title: Re: Is there sound in space?
Post by: Jmpty on August 15, 2013, 07:06:10 PM
If a tree falls in the forest, and no one is there to hear it.........
Title: Re: Is there sound in space?
Post by: GurrenLagann on August 15, 2013, 08:35:35 PM
Quote from: "Solitary"
Quote from: "Colanth"Is there sound in space?  No.  Are there pressure waves in space?  Yes.  "Sound" is a pressure wave audible by the human ear.


Right! But we can technologically detect these pressure changes and play them back for our ears to hear by electronically compressing them, so they are audible, how else could we know about them being a sound? If what you say is true, how can dogs hear sounds we can't?  :wink: Solitary

Then we aren't hearing the sounds, we're hearing electronically altered sound that isn't the original sound. If I take a picture of the Mona Lisa, I don't have the Mona Lisa.
Title: Re: Is there sound in space?
Post by: Solitary on August 15, 2013, 09:14:43 PM
Quote from: "GurrenLagann"
Quote from: "Solitary"
Quote from: "Colanth"Is there sound in space?  No.  Are there pressure waves in space?  Yes.  "Sound" is a pressure wave audible by the human ear.


Right! But we can technologically detect these pressure changes and play them back for our ears to hear by electronically compressing them, so they are audible, how else could we know about them being a sound? If what you say is true, how can dogs hear sounds we can't?  :wink: Solitary

Then we aren't hearing the sounds, we're hearing electronically altered sound that isn't the original sound. If I take a picture of the Mona Lisa, I don't have the Mona Lisa.


That may be true, but there is still a sound there or we couldn't hear it. Solitary
Title: Re: Is there sound in space?
Post by: SGOS on August 16, 2013, 12:31:39 AM
Quote from: "Jmpty"If a tree falls in the forest, and no one is there to hear it.........
That's what I was thinking.   :-D
Title: Re: Is there sound in space?
Post by: Solitary on August 16, 2013, 01:13:48 AM
Quote from: "SGOS"
Quote from: "Jmpty"If a tree falls in the forest, and no one is there to hear it.........
That's what I was thinking.   :-D


See, this is the problem with logic and philosophy---the meaning of words. What does the word sound mean? (2) definition: energy of vibration sensed in hearing. So that damned tree falling does make a sound, you just can't hear it unless you are there. :shock:  :wink:   :-$   :lol:  Solitary
Title: Re: Is there sound in space?
Post by: Colanth on August 16, 2013, 03:33:37 PM
And the pressure wave in space isn't a sound either, since you can't hear it.  (Even if being exposed to the near vacuum didn't kill you, the ear isn't designed to detect pressure waves in such a rarified medium.)
Title: Re: Is there sound in space?
Post by: Solitary on August 16, 2013, 04:05:04 PM
[quot"Colanth"]And the pressure wave in space isn't a sound either, since you can't hear it.  (Even if being exposed to the near vacuum didn't kill you, the ear isn't designed to detect pressure waves in such a rarified medium.)[/quote]





Did you read the definition of sound? "(2) definition: energy of vibration sensed in hearing. It doesn't have to be heard to be a sound, it just has to be an energy of vibration that may be heard or not. It's like the sound of one hand clapping.  :shock:  =D>  Solitary
Title: Re: Is there sound in space?
Post by: AllPurposeAtheist on August 16, 2013, 04:36:08 PM
They just released the Apollo transcripts..

Huh? Did you say something Houston? :)
Title: Re: Is there sound in space?
Post by: Solitary on August 16, 2013, 05:50:09 PM
I can't hear you, you have to make a sound.  :roll:  Solitary
Title: Re: Is there sound in space?
Post by: SilentFutility on August 17, 2013, 07:11:37 AM
Quote from: "Solitary"Did you read the definition of sound? "(2) definition: energy of vibration sensed in hearing. It doesn't have to be heard to be a sound, it just has to be an energy of vibration that may be heard or not. It's like the sound of one hand clapping.  :shock:  =D>  Solitary

Did you read it?
Title: Re: Is there sound in space?
Post by: Solitary on August 17, 2013, 11:41:18 AM
Quote from: "SilentFutility"
Quote from: "Solitary"Did you read the definition of sound? "(2) definition: energy of vibration sensed in hearing. It doesn't have to be heard to be a sound, it just has to be an energy of vibration that may be heard or not. It's like the sound of one hand clapping.  :shock:  =D>  Solitary

Did you read it?


You are talking about hearing not sound. There are 25 definitions of sound, and you have just supported what I said about words having different meaning and cause problems in logic and philosophy.

From another dictionary:

Definition Sound (2) Mechanical vibration transmitted through an elastic medium , traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level.

What part of that am I not understanding? Space is an elastic medium. Solitary
Title: Re: Is there sound in space?
Post by: ParaGoomba Slayer on August 17, 2013, 06:52:00 PM
If I have to hear another gun or laser go off in space in a movie or video game I'm going to just kill myself. 2001: A Space Odyssey is the only movie that realized that a what is essentially a vacuum can't carry sound.
Title: Re: Is there sound in space?
Post by: Colanth on August 17, 2013, 10:08:23 PM
Quote from: "Solitary"From another dictionary:

Definition Sound (2) Mechanical vibration transmitted through an elastic medium , traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level.

What part of that am I not understanding? Space is an elastic medium. Solitary
The part about you cherry-picking.  Did you miss the words "traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level"?  There's no "or" in there.
Title: Re: Is there sound in space?
Post by: Solitary on August 18, 2013, 01:00:05 AM
Quote from: "Colanth"
Quote from: "Solitary"From another dictionary:

Definition Sound (2) Mechanical vibration transmitted through an elastic medium , traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level.

What part of that am I not understanding? Space is an elastic medium. Solitary
The part about you cherry-picking.  Did you miss the words "traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level"?  There's no "or" in there.


I'm not blind and I didn't cherry pick, you did to support your position. Like I said, you are talking about hearing, not sound. Are you saying sound doesn't travel through space or any other elastic medium that it only travels through air? When you are in a fully enclosed house your saying the sound doesn't travel through the walls? Just because sound travels through air at that speed doesn't mean it doesn't travel through other elastic mediums. In fact sound travels through water faster.


Watch and learn:   http://www.youtube.com/watch?v=_teUrJjlM_4#at=187 (http://www.youtube.com/watch?v=_teUrJjlM_4#at=187)


Solitary
Title: Re: Is there sound in space?
Post by: SilentFutility on August 18, 2013, 09:04:36 AM
Quote from: "Solitary"
Quote from: "SilentFutility"
Quote from: "Solitary"Did you read the definition of sound? "(2) definition: energy of vibration sensed in hearing. It doesn't have to be heard to be a sound, it just has to be an energy of vibration that may be heard or not. It's like the sound of one hand clapping.  :shock:  =D>  Solitary

Did you read it?


You are talking about hearing not sound. There are 25 definitions of sound, and you have just supported what I said about words having different meaning and cause problems in logic and philosophy.

From another dictionary:

Definition Sound (2) Mechanical vibration transmitted through an elastic medium , traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level.

What part of that am I not understanding? Space is an elastic medium. Solitary

I am talking about the definition which you posted, along with asking if people had read it, which didn't match up with what you were trying to say, and nothing else...

I don't recall delving into philosophy to support what you said.
 :rollin:

Also:
[youtube:3r8mqlvz]http://www.youtube.com/watch?v=_VC9hbibesY[/youtube:3r8mqlvz]
Title: Re: Is there sound in space?
Post by: Solitary on August 18, 2013, 10:11:49 AM
QuoteI am talking about the definition which you posted, along with asking if people had read it, which didn't match up with what you were trying to say, and nothing else...

I don't recall delving into philosophy to support what you said.
:rollin:


That's your opinion. I said in the first post that the definition of words is a problem in philosophy and logic and you proved me right.  :rollin:  Did you learn anything from the video, or do you think she is wrong too by being a pedantic ass?  :P   Solitary
Title: Re: Is there sound in space?
Post by: SilentFutility on August 18, 2013, 10:27:00 AM
Quote from: "Solitary"That's your opinion.
No it isn't. If you can't quote me as saying something, I didn't say it.

Quote from: "Solitary"I said in the first post
...that I didn't respond to

Quote from: "Solitary"that the definition of words is a problem in philosophy and logic and you proved me right.  :rollin:
I made no attempt to agree nor disagree with this.
You posted a definition stating that sound has to be heard.
You wrote:
Did you read the definition of sound? "(2) definition: energy of vibration sensed in hearing. It doesn't have to be heard to be a sound, it just has to be an energy of vibration that may be heard or not.
ie. you posted a definition saying that sound had to be heard, then right after it wrote that it doesn't have to be heard to be a sound.

Whether or not you think it boils down defining individual words or not is irrelevant of the fact that you said two contradictory things in one sentence, while at the same time accusing someone else of doing the same thing, which is what I picked up on.

Quote from: "Solitary"Did you learn anything from the video, or do you think she is wrong too by being a pedantic ass?  :P   Solitary
Which video? The only video I can see in this thread is the one I posted of a HE jokingly doing a one hand clap.
Title: Re: Is there sound in space?
Post by: Solitary on August 18, 2013, 11:22:22 AM
I have no idea why the video wasn't posted. I can't find it again for some reason, but I have this one that doesn't explain as well as the other one.  The other one showed that space is not a complete vacuum so can carry sounds. Does the universe have a soundtrack? Physicist Janna Levin explains the idea behind what she calls, the sounds of space.

http://youtu.be/gBHxU319cZ8 (http://youtu.be/gBHxU319cZ8)  Solitary
Title: Re: Is there sound in space?
Post by: The Whit on August 22, 2013, 05:35:26 PM
There is no such thing as "sound".  What you hear is your brains interpretation of input from your ear, which is stimulated by changes in pressure.



Technically, when a tree falls in the woods and no one is around to hear it, it DOESN'T make a sound.  It does make pressure waves in the surrounding mediums though.
Title: Re: Is there sound in space?
Post by: Solitary on August 22, 2013, 05:48:16 PM
Quote from: "The Whit"There is no such thing as "sound".  What you hear is your brains interpretation of input from your ear, which is stimulated by changes in pressure.



Technically, when a tree falls in the woods and no one is around to hear it, it DOESN'T make a sound.  It does make pressure waves in the surrounding mediums though.


Thanks for your response! You are correct, that can be definition of sound, but you are incorrect to think there is no sound when nobody is around to hear it by the scientific definition of sound 2. Sound has more than one definition, and this is why there is a problem here.The modern science dictionary: 2. the energy that produces the stimulus of hearing. Solitary  :-D
Title: Re: Is there sound in space?
Post by: The Whit on August 22, 2013, 06:38:19 PM
Then the question has different answers, depending on how you define "sound".

The confusion has to do with the fact that we developed the ability to hear before we understood exactly what it was we were hearing.  We identify sounds as "sounds" instead of waves of differing pressure.  But the "sounds" we hear are only impulses in your brain that give you a certain experience (about a great philosophical discussion), and "sound" is the word we give to that experience.  The differing pressure is what causes sound.  If there is no one to hear the differing pressure waves caused by a falling tree then it has not made a sound, since it has not stimulated that part of a brain.

If you're going to equate sound with the differing pressure waves themselves, then anything that produces a pressure wave makes a sound.
Title: Re: Is there sound in space?
Post by: Nonsensei on August 22, 2013, 08:31:44 PM
Only sci-fi show to acknowledge no sound in space: Babylon 5.
Title: Re: Is there sound in space?
Post by: MrsSassyPants on August 22, 2013, 08:36:59 PM
Do we really care?  Only being a lil sarcastic. But seriously, who the fk cares?   Google it.
Title: Re: Is there sound in space?
Post by: Solitary on August 22, 2013, 11:51:24 PM
Quote from: "The Whit"Then the question has different answers, depending on how you define "sound".

The confusion has to do with the fact that we developed the ability to hear before we understood exactly what it was we were hearing.  We identify sounds as "sounds" instead of waves of differing pressure.  But the "sounds" we hear are only impulses in your brain that give you a certain experience (about a great philosophical discussion), and "sound" is the word we give to that experience.  The differing pressure is what causes sound.  If there is no one to hear the differing pressure waves caused by a falling tree then it has not made a sound, since it has not stimulated that part of a brain.

If you're going to equate sound with the differing pressure waves themselves, then anything that produces a pressure wave makes a sound.


Actually that is true by the number 2 definition. Can you hear a dog whistle? Are you saying that just because you can't hear it and a dog can it isn't making a sound? You are confusing the process of hearing with what a sound is.  {Then the question has different answers, depending on how you define "sound".} YES! Solitary
Title: Re: Is there sound in space?
Post by: Solitary on August 22, 2013, 11:54:20 PM
Quote from: "Nonsensei"Only sci-fi show to acknowledge no sound in space: Babylon 5.


How about 2001 Space Odyssey? Solitary
Title: Re: Is there sound in space?
Post by: aileron on August 22, 2013, 11:58:46 PM
Quote from: "Solitary"
Quote from: "Nonsensei"Only sci-fi show to acknowledge no sound in space: Babylon 5.

How about 2001 Space Odyssey? Solitary

Good one.  They even made the rush of air into the airlock get louder as the pressure increased.
Title: Re: Is there sound in space?
Post by: The Whit on August 23, 2013, 01:45:37 AM
There's a scene in the opening fight of the 2009 Star Trek movie where someone gets pulled out into space through a breach in the hull and everything goes silent.  Although, right before that the weapons that cause that hole do make sound travelling through space.  There's only so much one can expect from Hollywood.
Title: Re: Is there sound in space?
Post by: Nonsensei on August 23, 2013, 11:32:44 AM
Quote from: "The Whit"There's a scene in the opening fight of the 2009 Star Trek movie where someone gets pulled out into space through a breach in the hull and everything goes silent.  Although, right before that the weapons that cause that hole do make sound travelling through space.  There's only so much one can expect from Hollywood.

The trend these days seems to be muted sounds during space fights. Battlestar Galactica is a pretty good example of this.
Title: Re: Is there sound in space?
Post by: Jason78 on August 23, 2013, 11:41:52 AM
I think Battlestar Galactica (the remake)  had it about right.  You heard guns go off and missiles launch, but you didn't hear the flak explosions or the missiles travel.

I think they had it about right in terms of space battles too.   Battle groups had to be practically on top of each other and close combat was the order of the day.
Title: Re: Is there sound in space?
Post by: Hijiri Byakuren on August 23, 2013, 12:25:13 PM
"Is there sound in space?"

Technically yes, since planets fly around in space and there is sound in their atmospheres.

[/thread]
Title: Re: Is there sound in space?
Post by: SilentFutility on August 23, 2013, 03:16:58 PM
Quote from: "Hijiri Byakuren""Is there sound in space?"

Technically yes, since planets fly around in space and there is sound in their atmospheres.

[/thread]

Is there blood in the water? Yes, because there's blood in you and you're swimming in it.

If you tell people there's blood in the water, are you communicating effectively? No.
Title: Re: Is there sound in space?
Post by: The Whit on August 23, 2013, 03:55:52 PM
I just spent the last 30 seconds staring at your cat gif in a trance.
Title: Re: Is there sound in space?
Post by: Solitary on August 23, 2013, 08:27:28 PM
Quote from: "The Whit"I just spent the last 30 seconds staring at your cat gif in a trance.

This is God speaking. Stare at picture for 30 minutes and you will believe.  :twisted:  Don't trust him!

(//http://i.imgur.com/5apkp6d.gif)
Title: Re: Is there sound in space?
Post by: AllPurposeAtheist on August 23, 2013, 10:08:57 PM
I suppose if a tree falls in a forest and nobody is there to hear it it still makes a sound. Is this what you're trying to say? I've been in forests where trees fall and they fall silently. Of course they fell before I got there so I'm not 100% positive they make no sound, but they sure didn't seem to complain much when I was there.
Title: Re: Is there sound in space?
Post by: MrsSassyPants on August 23, 2013, 11:28:57 PM
Who FUKN cares
Title: Re: Is there sound in space?
Post by: Solitary on August 23, 2013, 11:56:54 PM
Quote from: "fingerscrossed2013"Who FUKN cares


He doesn't care either: (//http://i.imgur.com/AirUHfL.jpg)  :lol:  Solitary
Title: Re: Is there sound in space?
Post by: Hijiri Byakuren on August 24, 2013, 12:02:26 AM
Quote from: "SilentFutility"
Quote from: "Hijiri Byakuren""Is there sound in space?"

Technically yes, since planets fly around in space and there is sound in their atmospheres.

[/thread]

Is there blood in the water? Yes, because there's blood in you and you're swimming in it.

If you tell people there's blood in the water, are you communicating effectively? No.
I thought it was clear enough that I wasn't being entirely serious here. :lol:
Title: Re: Is there sound in space?
Post by: Solitary on August 24, 2013, 12:12:46 AM
(//http://i.imgur.com/gzQaYfd.jpg) This a problem. Solitary
Title: Re: Is there sound in space?
Post by: SilentFutility on August 24, 2013, 08:58:48 AM
Quote from: "Hijiri Byakuren"I thought it was clear enough that I wasn't being entirely serious here. :lol:
I know you weren't but I enjoy telling people that they're wrong anyway.  :rollin:

Quote from: "The Whit"I just spent the last 30 seconds staring at your cat gif in a trance.
Bow to your feline overlords.
Title: Re: Is there sound in space?
Post by: Hijiri Byakuren on August 24, 2013, 10:15:40 AM
Quote from: "SilentFutility"
Quote from: "Hijiri Byakuren"I thought it was clear enough that I wasn't being entirely serious here. :lol:
I know you weren't but I enjoy telling people that they're wrong anyway.  :rollin:
A man after my own heart. 8-)