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String Theory
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We have one real candidate for changing the rules; this is string theory. In string theory the one-dimensional trajectory of a particle in spacetime is replaced by a two-dimensional orbit of a string. Such strings can be of any size, but under ordinary circumstances they are quite tiny, ... a value determined by comparing the predictions of the theory for Newton's constant and the fine structure constant to experimental values.
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All these dualities suggest that string theorists have been looking at the same animal, only some have discovered the tail, while others have found the ears or glimpsed a snout. The problem is, they still don't know what kind of animal they're dealing with.
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― The Hole in the Universe
― The Hole in the Universe
...November 14, 2013 to December 14, 2013...
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