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Old 27-10-2010, 11:46 AM
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sjastro
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Quote:
Originally Posted by Brian W View Post
Now this begins to become understandable. with 'space expanding' and galaxies more or less going along for the ride then I can begin to see where no 'absolute centre' makes sense.

Now a little more help if you please... is it permissible or sensible might be a better word, to talk of an' absolute beginning position'? Granted that it is not the absolute centre.
Brian
Hello Brian,

Let's "look" at a very small object such as an electron. If we had the capability of observing electrons, the electrons would not appear as tiny spheres or points but as a "cloud" structure. This is quantum mechanics at work at small scales. The "cloud" represents the probability of finding the electron in a small region of space. It's impossible to pinpoint the exact position of the electron in space.

In the very early history of the Universe, the scale was small enough for the Universe to obey the laws of Quantum mechanics. For the same reasons as the electron, the beginning position would have been spread out over a small but finite volume of space instead of occupying a point in space time.
As the Universe expands so does this small finite volume of space, so it impossible to even define the region in which this beginning position could have occurred.

Regards

Steven
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