“In clear, nontechnical language, 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.” If you want to get deeper into Greene’s work on string theory, I would recommend referring back to this previous post.
This dynamic presentation was made at the TED conference. (PS You may also want to see BoingBoing’s new post: Top 10 TedTalks.)
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