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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