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hansen
searching PlanetScale…
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8 ms
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61.
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by
hansen
16y ago
It actually can't be rotation, otherwise the magnetic moment of charged particles comes out wrong by a factor two. From the mathematicians point of view spin arises naturally when you study how to represent the symmetries of special relativ
62.
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by
hansen
16y ago
You use the same formula to explicitly calculate the determinant in abstract proof. How can a student understand that, for example, the volume form on a riemannian manifold is invariant under a change of the chart, w/o knowing how to explic