Recent content by Sam_Playle

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    How did the CMB Lorentz frame get chosen?

    Thanks for your replies. I am convinced that no laws are violated. However, this doesn't sate my curiosity. I want to know how this frame bundle was picked, as opposed to another one, which, a priori, would be equally permissible. Is the local choice of frame just the rest frame of some...
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    How did the CMB Lorentz frame get chosen?

    Thanks. My question, then, is why is it this particular frame, and not another one? What is the cosmological origin? The CMB would seem to define (modulo SO(3)) a section of the frame bundle on spacetime; why is it the section that it is, instead of a different one? What is the historical fact...
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    How did the CMB Lorentz frame get chosen?

    The cosmic microwave background is anisotropic: the temperature is distributed as a dipole with the temperature at the poles differing by ±0.00335 K from the mean. This defines a Lorentz frame: we can boost by several hundred km/s to make the dipole vanish, on average. This new frame could...
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