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    Can anyone tell me how i would integrate the friedmann equation and use the fact that p is proportional to one over a (expansion factor) to show that for a flat universe:

    a is proportional to t^(2/3)
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    (Original post by number23)
    Can anyone tell me how i would integrate the friedmann equation and use the fact that p is proportional to one over a (expansion factor) to show that for a flat universe:

    a is proportional to t^(2/3)
    I googled the Friedmann equation but it came up with loads of variations of it.

    Which one are you using?
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    (Original post by stuart_aitken)
    I googled the Friedmann equation but it came up with loads of variations of it.

    Which one are you using?
    http://hyperphysics.phy-astr.gsu.edu...tro/fried.html

    first one on thr
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    anyone any ideas?
 
 
 
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