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Thread: Big bang singularity size

  1. #1 Big bang singularity size 
    Forum Freshman dheeraj's Avatar
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    hello everyone

    like the prevailing theory now on how our universe origin has taken is THE BIG BANG.

    BUT i am studying in 11th and one of my lecturer told me that our universe when exploded from the big bang singularity it's size was 10^-36 m
    any idea on that? like how scientists calculated that value

    you can find this at this website UNIVERSE.


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    Brassica oleracea Strange's Avatar
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    The "size" of a singularity is, by definition, zero (as far as I understand it). I'm not sure anyone thinks this represents a real thing.

    The size you quote must be the size of the observable universe at some early time. The earliest we can go back is, I think, about 10-36 seconds after time zero - our current theories of physics probably no longer apply before then. So, I guess that might be where size comes from.


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    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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    Forum Freshman dheeraj's Avatar
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    but we all know the least measurable part of a time and that is the planck time which is 5.4 *10^-44 = 0.0000000000000000000000000000000000000000000054 "SECONDS".

    nice possibility there you've considered strange,but 10^-36 sec's after time zero is much greater than planck time so what could be the other possibilities?
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    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by dheeraj View Post
    so what could be the other possibilities?
    Other possibilities for what? Our current theories are not able to extrapolate back much earlier (and certainly not back to Planck scale).
    Chronology of the universe - Wikipedia, the free encyclopedia
    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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