NOVA

The Elegant Universe: Part 3

Season 30 Episode 14 | 53m 7s | Video has closed captioning.

Brian Greene shows how Edward Witten of Princeton's Institute for Advanced Study, aided by others, revolutionized string theory by successfully uniting the five different versions into a single theory that is cryptically named "M-theory," a development that requires a total of eleven dimensions.

Aired: 11/03/03

Rating: TV-G

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Problems Playing Video? | Closed Captioning

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