NOVA

Temporada 31 · Capítulo 4 · 2003-10-28

NOVA Temporada 31 Capítulo 4: The Elegant Universe: String's the Thing (2) – Ver Online

The Elegant Universe: String's the Thing (2)

Part 2, "String's the Thing," opens with a whimsical scene in a movie theater in which the history of the universe runs backwards to the Big Bang, the moment at which general relativity and quantum mechanics both came into play, and therefore the point at which our conventional model of reality breaks down. Then it's string theory to the rescue as Greene describes the steps that led from a forgotten 200-year-old mathematical formula to the first glimmerings of strings—quivering strands of energy whose different vibrations give rise to quarks, electrons, photons, and all other elementary particles. Strings are truly tiny, being smaller than an atom by the same factor that a tree is smaller th