The Elegant Universe – M Theory (8/11)

July 21, 2010

in Quantum Amazement


Playlist: www.youtube.com A three hour program in three parts for television broadcast in late 2003 on the PBS series NOVA. The Elegant Universe Superstrings, Hidden Dimensions, Parallel Universes and the Quest for the Ultimate Theory In theoretical physics, M-theory is an extension of string theory in which 11 dimensions are identified. Because the dimensionality exceeds the dimensionality of five superstring theories in 10 dimensions, it is believed that the 11-dimensional theory unifies all string theories (and supersedes them). Though a full description of the theory is not yet known, the low-entropy dynamics are known to be supergravity interacting with 2- and 5-dimensional membranes. This idea is the unique supersymmetric theory in eleven dimensions, with its low-entropy matter content and interactions fully determined, and can be obtained as the strong coupling limit of type IIA string theory because a new dimension of space emerges as the coupling constant increases. Drawing on the work of a number of string theorists (including Ashoke Sen, Chris Hull, Paul Townsend, Michael Duff and John Schwarz), Edward Witten of the Institute for Advanced Study suggested its existence at a conference at USC in 1995, and used M-theory to explain a number of previously observed dualities, sparking a flurry of new research in string theory called the second superstring revolution. In the early 1990s, it was shown that the various superstring theories were related by dualities

{ 1 comment… read it below or add one }

1 Zee96969696 July 21, 2010 at 10:01 pm

this movie is pretty tripy, take marijuana and watch this movie, it would be aa hell of an experience, we are living in bread, lol. But seriously, inside a large membrane there are other membranes? and the membranes are parallel, they do not explan this very well

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