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about
this name is old and stupid....well first off my name is stephanie.dont judge me before you know me.im pretty nice.i like meeting new people,so im open to friends, but im extremely shy, so yeah. i dont give that good of advice so i'll help you as much as i canadvice
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?
**Physics confused person guy
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'.
i have no clue if this is right but oi found it on the computer.
(Rating: 4) Hmm. Even more confusing than what was explained to me before, but at least you took the time to look it up, even if you didn't know it. Go you