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I found very understandable proofs why $\nabla \cdot (\nabla \times H) = 0$ might be zero. But I do not derive any understanding out of it.

Imagine I have any source field. Why cannot I use Stokes Theorem on it and construct a field which would have the source field as curl?

daw
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Niclas
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    The divergence measures accumulation or dispersion at the point while the curl measures how much it rotates. Spinning something like a coin or a top doesn't make it accumulate or disperse so it must have no divergence. – CyclotomicField Feb 19 '24 at 00:35
  • Just in case I have not mentioned it: All of this was discovered by Paul Dirac when he was thinking about the existence of magnetic monopoles. – Kurt G. Feb 19 '24 at 06:51

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