Aired: February 12, 2003 | Season: 30 | Episode: 12
Overview
Runtime: 55m
Directed by: Joseph McMaster
Written by:
Guest stars: Brian Greene
Description
An introduction to string theory and its unification of general relativity and quantum mechanics.
Season 30 Episode 11
Battle of the X-Planes
Season 30 Episode 13
Lost Treasures of Tibet