Notices
Results 1 to 9 of 9

Thread: talking in space

  1. #1 talking in space 
    Forum Freshman
    Join Date
    Mar 2008
    Posts
    46
    i was wondering if i went into the vacume of space with my lungs full of air and tryed to talk,would it make a sound.

    if i put a microphone at different intervuls than would any of them be able to hear me like if one was right in front of me and one was a metre and one a kilometre away wich one would hear me the loudest and would the sound travel.

    i am just curious have u ever had a thought come into your head and was unsure of it because this is one of those thoughts and if u could answer it i would appreciate it thank you.


    some1 got into honors science in grade 9 yey.


    In life it is not the destination that matters,but the journey there.
    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Ph.D.
    Join Date
    Apr 2008
    Posts
    956
    You can’t make any sound at all in a vacuum. Sound is a longitudinal wave which requires a material medium for propagation.

    There’s a related discussion here: http://www.thescienceforum.com/The-s...ace-11350t.php


    Reply With Quote  
     

  4. #3  
    Forum Freshman
    Join Date
    Nov 2007
    Location
    London
    Posts
    79
    However, is it not feasible that the expelled air could create some vibration on the microphones when it impacts? Could that not, technically, be called sound?

    just curious.
    Reply With Quote  
     

  5. #4  
    Forum Ph.D.
    Join Date
    Apr 2008
    Posts
    956
    Maybe. But not all sounds are produced by ejecting air though. In any case, if any sound is produced at all, you’ll need to have headphones plugged in the amplifier to hear anything. The transmission of the sound will have to be entirely via solid media – including your flesh and bones.
    Reply With Quote  
     

  6. #5  
    Forum Freshman
    Join Date
    Nov 2007
    Location
    London
    Posts
    79
    True, but the OP just asked if it would make a sound, not whether someone would actually hear it.

    Besides, if you are using mics, that suggests someone is plugged in and listening.
    Reply With Quote  
     

  7. #6  
    Forum Freshman
    Join Date
    Mar 2008
    Posts
    46
    great thx for the help.

    it gets realy anoying when you get a thought on your mind with no answer
    just a theory and no way of knowing if it is right.
    In life it is not the destination that matters,but the journey there.
    Reply With Quote  
     

  8. #7 Re: talking in space 
    Moderator Moderator Dishmaster's Avatar
    Join Date
    Apr 2008
    Location
    Heidelberg, Germany
    Posts
    1,624
    Quote Originally Posted by maddog67
    i was wondering if i went into the vacume of space with my lungs full of air and tryed to talk,would it make a sound.
    Your lungs would explode, before you can even make a peep.
    Reply With Quote  
     

  9. #8  
    Forum Masters Degree SuperNatendo's Avatar
    Join Date
    Dec 2007
    Location
    Nashville, TN USA
    Posts
    505
    so, if you equipped a speaker in the wide end of a cone with compressed air, had the speaker making sounds, setup a microphone in line of sight to the cone, pushed the cone toward the mic, then cut a hole in the narrow end of the cone, would the microphone outside of the cone hear any sound produced by the speaker that was inside the cone? I'm guessing during thee trip in free space the air would vibrate longer than on earth, but I doubt the sound would be the same by the time it made it to the microphone.
    "It's no wonder that truth is stranger than fiction. Fiction has to make sense." - Mark Twain
    Reply With Quote  
     

  10. #9  
    Forum Freshman
    Join Date
    May 2008
    Posts
    56
    I just want to add that there cant be big banging noises and cool fires like in the movies. They both require air.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •