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Uncertanity Principle in Macrocosm

  1. Apr 19, 2013 #1
    A Macrocosm thing, example a car, can be exist two different places in the same time ?
  2. jcsd
  3. Apr 19, 2013 #2


    Staff: Mentor

    Why don't you work out an example. Suppose that you know that a 1000 kg car is moving at 10 m/s with a ridiculously low uncertainty of 0.001 angstrom/s. According to the uncertainty principle, what is the uncertainty in the position?

    How do you think that quantum mechanical uncertainty in position compares with the uncertainty in the size of the car due to stresses and elastic deformation?
    Last edited: Apr 19, 2013
  4. Apr 19, 2013 #3

    Vanadium 50

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    No. And neither can a "microcosm" thing.
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