Browsing All Posts published on »May, 2009«

Symmetry, Invariance, and Objectivity

May 16, 2009

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Symmetry is intimately related to the idea of invariance, the persistence of something amidst change (e.g., changes in time, space, or perspective). This is also one meaning of objectivity. Thus, symmetry is a key to understanding the objective world, as is well known in physics. The basic idea here is not confined to the esoteric […]