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Originally Posted by Hedonistman
OK,. so then ,, if our universe is finite,,, please tell me where the 'outer limits' be,, as in where does it end ?? Do you have even the most remote clue,,, ????
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I said the universe APPEARS to be finite. If the universe is 13.7 billion years old, and it is, then you cannot see anything that is greater than 13.7 billion light years away. The latest measurements by the WMAP probe suggest that the universe is actually infinite, but we'll never detect anything further out than 13.7 billion light years... Well I take that back, in another .1 billion years we'll detect out to 13.8 billion light years, etc.
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Originally Posted by ila
Your reasoning doesn't make sense to me. Do you care to further explain this concept?
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I'm just correcting the statement made by Hedonistman that if "the universe is constantly expanding,,, ipso facto,,, it is not finite." The fact that it is constantly expanding does not necessarily mean that it is infinite if the universe has a finite age.
It's the old rate times time = distance formula... r*t=d
If r & t are both finite, how can d be infinite? Or were you asking something else?
It is the density of the universe that allows us to determine if it's infinite or not, and it seems to be.
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Originally Posted by Hedonistman
Always,, continuously expanding,,, yes that doesn't necessarily mean our universe is infiite,, but by simple definition of the word 'finite' 'to have limited size, scope,,, dimmension,, etc etc etc,,, it sure as shit means it is NOT finite.
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In terms of the observable universe, if you get the Hubble telescope and take a look at what you see out there, you will not see any galaxies that are 12.7 billion light years away, because there were none more than 12.7 billion years ago. If you look out 13.4 billion light years away, you won't see any stars there either. It's not because they're too far away and hard to see. There just aren't any. Beyond that, there's just the cosmic microwave background. That obscures the last 400 million lightyears out there. You will not get any images of anything beyond that. We may possibly be able to detect gravity waves beyond 13.4 billion light years, but you won't get anything beyond 13.7 billion light years.
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Originally Posted by Hedonistman
WTF too,,, I gots to ask,,, who has taken even 1 physics class ?? How's about a class in understanding written english ? Duhhhhhh...
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Anyway,,, throw bricks if u must,, but maybe better,,, get an education,,
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I have taken a bit more than 1 physics class. If you're interested in this stuff, I'd be happy to fill you in. Simply saying that finite rate times finite time = finite distance does not account to throwing bricks. We're just chatting here.