String theory primer:
Theoretical physicists are seeking a Theory of Everything to unite the four fundamental forces of physics: strong, weak, electromagnetic and gravitational.
The strong force holds the nuclei of atoms together.
The weak force regulates the decay of atoms.
The electromagnetic force describes the interaction between charged objects: like charges repel and opposites attract.
The gravitational force acting between massive bodies.
String theory suggest that all matter, forces and energy are manifestations of the vibrations of tiny one-dimensional strings much smaller than atoms.
Skeptics have attacked the theory because its predictions and premises cannot yet be tested through experiment.
SEE ALSO: “Physicists see a universe awash with strings” and “M-theory: a string that unites them all?”
