Ok. My brain is being ground into tiny bits by the string theory, or M Theory. Dammit. o_o Can someone please (if you even have the slightest clue about it) explain the basics to me about the string/M Theory?
What it is basically, a theory about everything. The Fundamentals include particles. known as "Strings" that can vibrate in such a way that it can travel through dimensions. strings are one dimensional particles. the next part is a brane. a Brane is a higher dimension of the String. Like the String, a brane can also vibrate in such a manner that is can travel to dimensions lower then it. Branes can absorb strings, and thus travel to even more dimensions.
The String theory is an attempt to unify the four basic fundamental forces. Electro-magnetism, Gravity, and what not.
The String Theory also can only properly function with supersymmetry. meaning, there exists dualities between any and all matter and their properties. Also. (as a side note) The string theory predicts the existence of primordial black-holes such as the ones that cause the Big Bang Theory. a primordial black-hole is a black hole that is so incredibly small, that after the singularity has absorbed all the matter surrounding the event horizon, it will evaporate, and explode. This explosion is much more powerful then the H-Bomb which destroyed Bikini Island. thus created everything that is now here. [ ShsJazzFreak's advice column | Ask ShsJazzFreak A Question ]
alisonmarie answered Saturday April 2 2005, 12:09 pm: Buy the book 'The Elegant Universe.' It's all about string theory but in plain English.
gakkuhideto answered Saturday April 2 2005, 12:45 am: This isn't really a problem that you ask people's advice on. This is your homework. Look it up in your physics book and ask your teacher for help. [ gakkuhideto's advice column | Ask gakkuhideto A Question ]
shake answered Friday April 1 2005, 5:16 pm: "My brain is being ground into tiny bits"
You dont need to worry about physics right now you need to get to a brain surgeon fast so that little prob of yours doesnt become seriouse. [ shake's advice column | Ask shake A Question ]
xxBrOkEnxx answered Friday April 1 2005, 4:16 pm: In String Theory, the myriad of particle types is replaced by a single fundamental building block, a `string'. These strings can be closed, like loops, or open, like a hair. As the string moves through time it traces out a tube or a sheet, according to whether it is closed or open. Furthermore, the string is free to vibrate, and different vibrational modes of the string represent the different particle types, since different modes are seen as different masses or spins.
One mode of vibration, or `note', makes the string appear as an electron, another as a photon. There is even a mode describing the graviton, the particle carrying the force of gravity, which is an important reason why String Theory has received so much attention. The point is that we can make sense of the interaction of two gravitons in String theory in a way we could not in QFT. There are no infinities! And gravity is not something we put in by hand. It has to be there in a theory of strings. So, the first great achievement of String Theory was to give a consistent theory of quantum gravity, which resembles GR at macroscopic distances. Moreover String Theory also possesses the necessary degrees of freedom to describe the other interactions! At this point a great hope was created that String Theory would be able to unify all the known forces and particles together into a single `Theory of Everything'.
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