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M$1 May 30, 2009 07:53 PM

What is M-Theory?

Has the theory of relativity with quantum theory been unified?
Interesting Question?  Yes (1)   No (0)   

Interesting: buddawiggi

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May 30, 2009 08:07 PM
It is one of the main theories in Physics. It is the string theory but in 11 instead of 10 dimensions. It's also often called the "super-string" theory.

It is tough to make this stuff easier, because it is simply so freakin' complicated.
Imagine the whole universe as we know it as a membrane like structure (that's where the M is from btw). This membrane isn't the only one though, there are an infinte amount of membranes and therefore realities out there, ours is just one of them.

The theory also offers an explanation for the Big Bang: two membranes banged into each other and the resulting explosion created a new membrane, ours.

I don't get half of it and I'm really interested in physics. Even after reading the page on the book I had for the third time, I didn't quite get it. I don't know if you even can "get it" yet.
http://en.wikipedia.org/wiki/M-theory
Source(s):
http://en.wikipedia.org/wiki/M-theory and Michio Kaku's books

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May 31, 2009 12:29 AM
Super String seems to be popular. Will you explain briefly what super string theory is?

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May 31, 2009 11:26 AM
Super-String Theory is essentially the M-Theory. Our universe, the membrane, is vibrates like a giant (or "super") string at a certain frequency.

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May 31, 2009 04:11 PM
Are you referring to the P-Membrane theory where open and close strings communicate between different points on the membrane?

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May 30, 2009 08:00 PM
In essence, no. Both of these theories are yet to be unified. However, they both have been proven to be correct representations of nature. One theory represents a larger universe (relativity), while the other describes discrete particles, like protons, electrons, neutrons and smaller subatomic particles(quantum theory).

On the other hand, some scientists have attempted to connect these two theories by thinking of the world as a non-linear plane. This allows the the larger universe and discrete particles to work together on the same level and be governed by similar laws. One such theory is String theory. In this branch of theoretical physics, everything in the universe is made up by incredibly small, oscillating strings. They are governed by tension and kinetic energy. Because sting theory is considered to be a theory of "quantum gravity", it could possibly explain the laws of everything in the universe. Unfortunately, this theory cannot yet explain all situations, so cannot be made into law. As a result, research in this subject, and all subjects relating to the relationship between relativity and quantum mechanics, goes on.
Source(s):
http://scaruffi.com/science/physics.html

http://www.arthurjaffe.com/Assets/pdf/Quantum-Theory_Relativity.pdf

http://www.superstringtheory.com/


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