String Theory. Know on the go.

String theory 

We rely on string theory to understand and to combine the quantum theory and the gravity.
As the name suggests, whole theory is based on string like structures. The one dimensional objects which only have length. The lies and move through background spacetime. The advance version of string theory i.e. superstring theory is considered as THEORY OF EVERYTHING. So what string theory exactly is???

Strings are one dimensional objects that contain energy and by there flow, one can say that energy is moving. Suppose we take a long thread and tie a knot, it will became a loop, similarly strings are joined to make a loop known as Heterotic string.

These are 5 independent strings theories, telling the same thing but in different dimensions.
Combination of all the 5 string theories is known as Superstring theory.

Let us see how  it works...
Consider a violin, the strings attached to it, are producing waves, which are the source of energy.
Having different notes on string, rises different frequencies of energy. Similarly, different types of strings (difference in energies) represent different atoms and particles. These strings are constantly moving and transferring energy.
Paul Townsend, gave a name "p-branes" to strings who are spread in more than one dimension.
Thus, p=1 brane is string & p=2 brane is surface, and so on. All the 5 string theories i.e. superstring theory and 11-dimension supergravity are collectively known as M-THEORY.

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