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Thread: Does air pressure increase noticeably in a mine?

  1. #1
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    Does air pressure increase noticeably in a mine?

    I am watching the Chilean miner rescue and wonder is there a significant difference between the 1/2 mile deep mine and the surface?

    Just wondering
    Solfe

  2. #2
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    Quote Originally Posted by Solfe View Post
    I am watching the Chilean miner rescue and wonder is there a significant difference between the 1/2 mile deep mine and the surface?

    Just wondering
    Yes, it would be similar to the difference between sea level and 1/2 mile above sea level. Whether or not you feel it in your ears depends in part on how fast the elevator is moving.

  3. #3
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    It's going to be measurable -- and calculable. Try this standard atmosphere calculator at Stanford' aero department. The pressure will be about 10% greater than at sea level, and the temperature will be about 9oF greater than at sea level
    Last edited by swampyankee; 2010-Oct-13 at 10:25 AM. Reason: added the underlined text.
    Information about American English usage here. Floating point issues? Please read this before posting.

    How do things fly? This explains it all.

    Actually they can't: "Heavier-than-air flying machines are impossible." - Lord Kelvin, president, Royal Society, 1895.



  4. #4
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    Neat links. Thanks! The second miner is coming out now.
    My wife asked me and it bugged me more than it did her, because by the time I asked the question, she forgot she even asked me.
    Solfe

  5. #5
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    In a related question, how deep a hole would be needed on Mars so that you don't need a pressure suit? I realize, of course, you would still need oxygen.

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