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Thread: Absolute Zero

  1. #1
    You're fired. Lol. Antimony's Avatar
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    Default Absolute Zero

    Would all motion stop, all over the world, if we reached it here on earth?


    My chemistry teacher was telling us about how some people are worried that if they reached absolute zero that will happen. Of course, someone asked "what if it were in a closed container". His response was that would mean the container would have to be the same temperature, and the surrounding particles would have to be, and it would continue onward.
    Excuse me, but does this smell like chloroform to you?

    Always reserve the right to become smarter at a future point in time, for only a fool limits themselves to all they knew in the past. -Alex

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    Supreme High Commander Andy's Avatar
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    There can never be no motion - the quantum uncertainty principal doesn't allow for it. It velocity was known to be zero with absolute certainty, then the error in position becomes infinite. Absolute zero is generally considered to be impossible.

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    You're fired. Lol. Antimony's Avatar
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    If it stopped moving completely, you could not see for yourself that it had stopped moving, and remained in its same location, even knowing it's velocity?
    Excuse me, but does this smell like chloroform to you?

    Always reserve the right to become smarter at a future point in time, for only a fool limits themselves to all they knew in the past. -Alex

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    Supreme High Commander Andy's Avatar
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    You'd know it was still, but it could anywhere in the entire universe. Arguably, it would have no definable location at all. Have you ever heard of quantum tunneling? Where a particle passes through a potential barrier that is too high for it to breach in conventional mechanics, due to the uncertainty in its location? In this case the absolute zero particle has an equal probibility of being anywhere. If you managed to pin its location down at all, it could no longer have zero motion, and would nolonger be at absolute zero.

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    Nips away your dignity Fluffywolf's Avatar
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    Absolute zero is an idea. Yet an idea can never be absolute zero!

    It's all relative.
    ~Self-depricating Megalomaniacal Superwolf

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    You're fired. Lol. Antimony's Avatar
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    ^ thank you for your incredibly helpful insight

    Andy: I haven't heard of that. The highest science I am in is chemistry.

    But, I have heard of it now. So, absolute zero is absolutely, 100% impossible?
    Excuse me, but does this smell like chloroform to you?

    Always reserve the right to become smarter at a future point in time, for only a fool limits themselves to all they knew in the past. -Alex

  7. #7
    No Cigar Litvyak's Avatar
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    Quote Originally Posted by Antimony View Post
    If it stopped moving completely, you could not see for yourself that it had stopped moving, and remained in its same location, even knowing it's velocity?
    "The same location"? You can never fully identify its location either. We're talking about possibilities, the particle is more likely to be "here" than "there" but you may never know for sure.

    It would never stop moving completely. Absolute zero is a theoretical concept, it seems to be impossible.

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    You're fired. Lol. Antimony's Avatar
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    How would something even get that cold?
    Excuse me, but does this smell like chloroform to you?

    Always reserve the right to become smarter at a future point in time, for only a fool limits themselves to all they knew in the past. -Alex

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    Nips away your dignity Fluffywolf's Avatar
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    Yup. It has not practical or theoretical application whatsoever. Just a philosophical application.

    One can argue that absolute zero exists in every one point of the universe at any one time. But never in two places at once.
    ~Self-depricating Megalomaniacal Superwolf

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    You're fired. Lol. Antimony's Avatar
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    New question: is time continuous?
    Excuse me, but does this smell like chloroform to you?

    Always reserve the right to become smarter at a future point in time, for only a fool limits themselves to all they knew in the past. -Alex

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