how many dimensions really are there? someone told me there were 7 was he right?
moonlord: Changed title to reflect content.
Edit by Rob: Deleted poll.
number of dimensions
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number of dimensions
by papernuke » Sun Jul 09, 2006 2:57 am
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by Nick » Sun Jul 09, 2006 12:21 pm
We don't know for sure. Some theories are that there are 11.
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by houserichichi » Sun Jul 09, 2006 2:32 pm
Superstring theory requires seven EXTRA dimensions wthin our 4D spacetime...maybe that's what you heard? Keep in mind it hasn't been verified as "correct" nor have we found any substantial evidence to suggest it as a realistic model for our universe.
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by moonlord » Sat Jul 15, 2006 10:10 am
Why exactly 7? Please explain so we can... exchange ideas 
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."God does not play dice." -- Albert Einstein, early 1900's.
"Not only does God play dice, but... he sometimes throws them where we cannot see them." -- Stephen Hawking, late 1900's.
"Not only does God play dice, but... he sometimes throws them where we cannot see them." -- Stephen Hawking, late 1900's.
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by thigle » Sun Jul 16, 2006 6:34 pm
rob identifies with we and claims.
pwrong knows who is who and so he states what he believes while leaving room for others to think otherwise.
whoeversayswhatever, i find herenow infinite number of dimensions to play with & exist in.
pwrong knows who is who and so he states what he believes while leaving room for others to think otherwise.
whoeversayswhatever, i find herenow infinite number of dimensions to play with & exist in.
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Re: number of dimensions
by Hugh » Mon Jul 17, 2006 4:07 pm
Icon wrote:how many dimensions really are there?
No one knows for sure. We seem to exist in 3 spatial dimensions and one time dimension but there are many things in physics that can be more easily explained once you allow for the existence of higher spatial dimensions.
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by moonlord » Mon Jul 17, 2006 5:27 pm
As Hawking says, it is a meaningless question. No one will ever know. It seems we have 3 spatial and a time-D, but theories require more. Now, if we have a theory that claims 5D and one that has 8D, and they are unified in a GUT that requires 10D (mathematically) what would you choose? In the positivistic approach, one can not know which is the real theory. "Perhaps the difference between what's real and what's not is merely in our head." (Hawking).
"God does not play dice." -- Albert Einstein, early 1900's.
"Not only does God play dice, but... he sometimes throws them where we cannot see them." -- Stephen Hawking, late 1900's.
"Not only does God play dice, but... he sometimes throws them where we cannot see them." -- Stephen Hawking, late 1900's.
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by thigle » Mon Jul 17, 2006 7:47 pm
hawking is nihilistic in this case: tries to back up nonexistence of answer, still he's offering that nonexistence as answer. so he's positing nothing as something positive, and is even tautological.
anyway, he's right with the difference between what's real and what's not being in our head, if we omit his (perhaps unconscious) paternalistic materialistic deterministic supposition about the brain-function.
some already knew, and some know perhaps. that is not enough for others to know. unfortunately.
anyway, he's right with the difference between what's real and what's not being in our head, if we omit his (perhaps unconscious) paternalistic materialistic deterministic supposition about the brain-function.
some already knew, and some know perhaps. that is not enough for others to know. unfortunately.
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