In physics, M-theory (sometimes reffered to as U-theory) is put forward as the master theory that unifies the five superstring theories. Although M-theory is already well established among the physics community, it still lacks the critical understanding that is regarded as key importance in all major physical theories.
http://en.wikipedia.org/wiki/M-theory
http://www.pbs.org/wgbh/nova/elegant/program.html
2006-08-04
13:28:43
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