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Spacetime we are able to distinguish between different inertial frames

  1. Feb 26, 2009 #1
    A professor told me that in our spacetime we are able to distinguish between different inertial frames because the cosmic microwave background looks different. If this is true then what spacetime do we live in? What would it look like mathematically. Would the det(g) not be negative?
     
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  3. Feb 26, 2009 #2

    atyy

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  4. Feb 27, 2009 #3

    Vanadium 50

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    Re: spacetime

    We can also distinguish between different inertial frames because the speed and position of Jupiter looks different in them. There's no difference here.
     
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