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the big rip theory
Posted 10 August 2008 - 01:09 PM
Posted 10 August 2008 - 03:25 PM
What would happen after?
The end of the Universe as we know it ????
Posted 10 August 2008 - 03:54 PM
Posted 10 August 2008 - 04:00 PM
more of a "big crunch" man myself - universe expands to its limit, then collapses in on itself, creating a new big bang and the whole process starting again.......
i would love to believe that to, and it would be consistant with the way of nature
Posted 10 August 2008 - 04:47 PM
What is the big rip theory? I wish the big crunch would happen...seems more elegant
Posted 10 August 2008 - 05:17 PM
It has even been proposed by some theorists that it may be possible to probe back before the big bang, to find out more about the universe before our own. Some of these new theories , collectively known as theories of cyclic universes, are to be put to the start test with the launch of Planck.
There are two popular theories:
M-Theory, this is a unification theory to explain all the forces and particles known today and has led to the possibility that our 4D universe is part of a multi-dimensional membrane (hence the M-Theory). According to M-Theory the big bang no longer starts with a singularity, but as a collision between two membranes releasing massive amounts of energy (the big bang). This theory avoids the obvious problems of having the singularity.
Loop Quantum Gravity, this shows the view of space and time as a type of 'fabric' made up of sub-atomic loops acting together to create the force we call gravty. As with the above theory, LQG no longer has the problematic singularity. However, LQG gives a clearer account of before the big bang, where a previous universe collapsed down on itself before re-expanding to form a new-universe. Instead of collapsing to a singularity, the universe collapsed down to a small but finite size, temperature and density.
The problem of course with these cyclic universe theories id the lack of knowledge about the fundamental equations we should be using to understandbefore the big bang. The main plus point is that both theories don't rely on the need for a singularity.
Just thought I would post these ideas into the pot regarding current research into before the big bang. I'm not saying there right or wrong, just posting for discussion.
Posted 11 August 2008 - 08:13 AM
The concept of looking back beyond the big bang, bounce or whatever is quite mind boggling. :shock:
Posted 12 August 2008 - 05:29 AM
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