NOVA | The Elegant Universe
Einstein's Dream
The first hour introduces string theory and shows how modern physics — composed of two theories that are ferociously incompatible — reached an impasse: one theory, known as general relativity, is successful in describing big things like stars and galaxies; another, called quantum mechanics, is equally successful in describing small things like atoms and subatomic particles. Albert Einstein, the inventor of general relativity, dreamed of finding a single theory that would embrace all of nature’s laws. But in his quest for the so-called unified theory, Einstein came up empty-handed, and the conflict between general relativity and quantum mechanics has stymied all who’ve followed. That is, until the discovery of string theory.
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