Obviously sound can travel through space; Voyager 1 has received interstellar sounds

Discussion in 'Science' started by nicewarlock, Dec 25, 2013.

  1. Moi621

    Moi621 Well-Known Member Past Donor

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    Are YOU sure about that?
    Hasn't anyone put a microphone in space just to be sure / find out?
    Could be the stuff of another "Moon Landing" debate. :hmm:


    BTW


    NASA's Voyager 1 spacecraft captured these sounds of interstellar space. Voyager 1's plasma wave instrument detected the vibrations of dense interstellar plasma, or ionized gas, from October to November 2012 and April to May 2013.


    I guess there is a medium for the transmission of sound, eh



    Moi :oldman:

    r > g



    :nana: :flagcanada:
     
    Last edited: Nov 17, 2017
  2. tecoyah

    tecoyah Well-Known Member Past Donor

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    Your understanding of sound waves and space are not accurate.
     
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  3. HereWeGoAgain

    HereWeGoAgain Banned

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    With a particle density of about 1 H atom per cc of empty space it is very slight, but given that sound is just a pressure wave, even in empty space there is a slight degree of sound transmission. It wouldn't be easily detectable.
     
    Last edited: Nov 18, 2017
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  4. tecoyah

    tecoyah Well-Known Member Past Donor

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    I think the OP believes sound is dependent on the Human Ear in some way. Sound is definitely there in space, but we cannot hear it so in essence it does not travel through space FOR US. The waves that carry it most certainly do however and can be heard by an artificial ear called a telescope or receiver.
     
  5. OldManOnFire

    OldManOnFire Well-Known Member

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    Phonons...
     
  6. cerberus

    cerberus Well-Known Member Past Donor

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    It's all them thar 'gravitational waves' wot's doing it! Jeez how can you actually believe all this crap?
     
  7. WillReadmore

    WillReadmore Well-Known Member

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    I interpreted the question to refer to what we can listen to. If an astronaut stuck a standard high end microphone out the window of the space station, it would pick up absolutely nothing at all.

    The gravitational wave "recordings" were made by some scientist converting information into sound. That's what I was suggesting is like using false color to demonstrate something - like satellite maps that show red where it is hot and blue where it is cold.

    If a vacuum is imperfect, then it could actually transmit sound. Space isn't a perfect vacuum, but it's good enough to prevent our ears from working. And, I don't know of actual recordings of sound in space that were useful other than to test the limits of sound in space. The sun is powerful enough to transmit sound that highly specialized equipment could pick up, so there are probably recordings of that, which have been significantly enhanced so that a human could hear them.
     
  8. reallybigjohnson

    reallybigjohnson Banned

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    Going by the article its not sound. Sound travels through a medium, what they are talking about is that actual medium (stuff ejected from the sun during a massive flare) travelling to Voyager.
     
  9. cerberus

    cerberus Well-Known Member Past Donor

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    Be honest now - all you're doing is parroting crap you've read in some 'science' magazine whose interest is to publish any nonsense in order to stay in business.
     
  10. WillReadmore

    WillReadmore Well-Known Member

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    You are free to ask questions.
     
  11. tecoyah

    tecoyah Well-Known Member Past Donor

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    It would do you a lot of good to read a few of those science magazines, even if they are some vast conspiracy made just to fool you. You must be extremely important to get the whole world plotting against you.
     
  12. cerberus

    cerberus Well-Known Member Past Donor

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    What the point - you'll just copy & paste the answers straight from your science/space magazine of choice?
     
  13. WillReadmore

    WillReadmore Well-Known Member

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    Weird sentence structure.

    If I copy something I'll cite it so you can check it out.
     
  14. cerberus

    cerberus Well-Known Member Past Donor

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    What you obviously don't understand is that although you believe what you're citing, I won't believe it, so there's no point is there? Sorry about the grammar faux pas though - I'll try and be more careful in future. :roll:
     
  15. WillReadmore

    WillReadmore Well-Known Member

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    You know in advance that you would reject every cite I post?

    Do you have any idea what you are saying about yourself?
     
  16. tecoyah

    tecoyah Well-Known Member Past Donor

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    The sad part is...I think he actually does.
     
  17. politicalcenter

    politicalcenter Well-Known Member

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    Sound does not travel through space. Radio waves do. Radio waves can be converted to sound. That is what happens when you turn on the car radio.
     
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  18. primate

    primate Well-Known Member Past Donor

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    An easy experiment confirms the need of some medium to propagate sound. Put a bell in a glass jar then slowly evacuate the air. As you do the bell gets less loud until no longer audible. Of course more sophisticated tests also confirm using sensitive instruments rather than the human ear.
     
  19. primate

    primate Well-Known Member Past Donor

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    deleted duplicate
     
    Last edited: Nov 26, 2017
  20. cerberus

    cerberus Well-Known Member Past Donor

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    Look, if you cite nonsense to me from somebody else's theories or speculations then of course I'll reject it - why would I not, without knowing if they know what they're talking about - especially if I know they have a vested interest in asserting it? You might not need convincing with some evidence or proof, but I do, otherwise it's like believing fairy-tale legend?
     
  21. politicalcenter

    politicalcenter Well-Known Member

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    Yes..they are called radio waves.
     
  22. drluggit

    drluggit Well-Known Member

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    Since when is space "mediumless"?
     
  23. WillReadmore

    WillReadmore Well-Known Member

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    You're showing a WHOLE lot of fear about what I might cite!

    Why?
     
  24. OldManOnFire

    OldManOnFire Well-Known Member

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    Phonons https://www.thoughtco.com/phonon-2699277
     
  25. WillReadmore

    WillReadmore Well-Known Member

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    I don't believe phonons can travel through a perfect vacuum. Note that your article points out that they aren't really particles.

    I think there needs to be mass that interacts with them, at which point they have behavior like a particle.

    Since space isn't a perfect vacuum, there can be a pressure wave - which is what sound is. But, I think it's going to take some equipment to detect it.
     

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