Other > Off-topic discussions

What is light

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cogliostro:

--- Quote from: Michaelh139 on May 23, 2011, 11:25:01 pm ---Becus we are Specials!!!

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Yoo have said it all.

pistacja:

--- Quote from: Dishonest Abe on May 23, 2011, 10:46:09 pm ---
And that would be radius of the universe, not the full diameter. It would 13.7 * 2, or 27.4 billion light years. But really, those are all theoretical models - some scientists would say it is a perfect sphere, some would say it is relatively flat, some would say it is hyperbolic. Some would say the matter expanded in just 1 direction, not in every direction. You can't say that it is larger than the speed of light allows it to be, though.

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27.4 billion light years? Ok, but the size of the observable universe is a sphere with a radius of about 46 billion light years and growing by the second ^^

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