String theory is a set of attempts to model the four known fundamental interactions—gravitation, electromagnetism, strong nuclear force, weak nuclear force—together in one theory. This tries to resolve the alleged conflict between classical physics and quantum physics by elementary units—the one classical force: gravity, and a new quantum field theory of the other three fundamental forces.
Not even going to try and get the one you wrote about! Just going to love the one you photographed! Clever and appealing resolves the conflict between brains and beauty!