NOVA

“The Elegant Universe: Einstein's Dream”

Scientists have pursued an approach to a single theory that would embrace all of nature's laws, yet the conflict between general relativity and quantum mechanics has stymied all who've followed. Physicist Brian Greene makes the surreal world of string theory spring to life. He introduces the theory, and shows how modern physics, composed of two incompatible theories--reached an impasse.

10.1 and 36.2