String theorist Brian Greene explains how our understanding of the universe has evolved from Einstein's notions of gravity and space-time to superstring theory, where minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe. (This mind-bending theory may soon be put to the test at the Large Hadron Collider in Geneva.)
Brian Greene: The universe on a string
http://www.youtube.com/watch?v=YtdE662eY_M&eurl=http://www.lightworker.com/
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