How does string theory explain the whole universe?

Answer 1

String theory is a model of fundamental physics whose building blocks are one-dimensional extended objects (strings) rather than the zero-dimensional points (particles) that are the basis of the Standard Model of particle physics

String theorists adjust the Standard Model by removing the assumption in quantum mechanics that particles are point-like and replacing the point-like particles with strings. String theory appears to be able to "unify" the known natural forces (gravitational, electromagnetic, weak and strong) by describing them with the same set of equations. However no experimental verification or falsification of the theory has yet been possible, thus leading many experts to turn to one of several alternate models, such as Loop quantum gravity.

The full theory is not yet understood. For example, the theory does not have a satisfactory definition outside of perturbation theory; the quantum mechanics of higher dimensional objects than strings is not understood; the behavior of string theory in time-dependent backgrounds is still being worked out; finally, the principle by which string theory selects its vacuum state is still being contested.

Answer 2

All mass and force particles are summed up in the Standard Model of Fundamental Particles: http://en.wikipedia.org/wiki/Image:Particle_chart.jpg

String theory attempts to describe each of these entities as made up of a tiny (on the order of Planck Length http://en.wikipedia.org/wiki/Planck_Length ) loop of string with enormous tension. These strings can vibrate with different frequencies, and in different ways (side to side, up and down, etc). Each vibrational pattern appears as different particles in the universe.

Another major part of the theory is the geometry of the universe. For the theory to work the strings must be vibrating not in 3 dimensions, but in 11. In each point of space, there is a Calabi-Yau space in which the strings vibrate.

This theory is pretty controversial - it relies on absolutely no experimental proof, it is purely mathematical. Further more, figures it comes up with are approximations from equations which themselves are approximations ( http://en.wikipedia.org/wiki/Perturbation_theory )

Answer 3

11 dimensional string theory has not produced anything.

It is possible that the 7 dimensions that are not perceived are mathematical deception, and therefore string theory is a theory of nothing, as you will find if you read the wikipedia article on string theory all the way to the end.

Answer 4

energy flows as long long strings, and different disturbances cause different things, like the ondulations on a guitar strings causes sounds...it is a very complicated theory, this is just a simplification

Answer 5

Go to youtube.com, then type and search " elegant universe ".

Watch all three series of them, and you will know better.

Answer 6

How DOESN'T it?