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Feb11-12, 12:51 AM
P: 789
I think the principles of classical physics are finalized, so there are no mysteries as to principle, unlike, say, elementary particle physics where the principles are not yet completely established, which yields "mysteries". However, just because classical physics is "known" does not mean that every classical problem is easily solved, and so there are mysteries as to what classical physics has yet to predict. I would think this is mostly in statistical methods applied to classical physics. Chaos theory is one that comes to mind, like explaining the rings of Saturn. Severely non-equilibrium statistical mechanics of classical particles, maybe. Fluid turbulence is another.