String Theory states that sub-atomic particles are one dimensional entities which are vibrating like a string. Furthermore String Theory asserts that physical space is not the classical three dimensional space ( length, breadth and height) or Einstein’s four dimensional space (length, breadth, height and time) but a ten dimensional space. We can only perceive three of the 10 dimensions. One of the things that ten dimensional string theory can do is explain time travel and travel over vast distances at velocities greater than the speed of light.
String theory is not empirically verifiable and does not accord with Newtonian Mechanics.
The following video provides a graphical example of ten dimensional string theory.