**Theory of
Everything **

A
short introduction to the history of physics, and string theory as a ¡°Theory of
Everything¡±

M-theory
and dualities

__Comments__:

The first
article explains what string theory is and why many physicists study it. The
second article explains what the first superstring revolution and the second
superstring revolution are in laymen¡¯s terms. I also explain the significance
of my calculation of string coupling constant. The last article derives a
simple mathematical relation that is very important in string theory.