sci.physics.electromag

Benj wrote:
> Yep. And it's interesting to note that Energy stored in fields and
> measured by the Poynting vector are traditionally viewed as more or
> less unreal. "no one knows where the energy is when it's stored in
> the fields" goes the textbook saw.

Crikey. In contrast, the textbooks I recall looking at seemed perfectly
happy to give formulae for the energy density of the EM field. Neither
do I recall any odd claims that that energy (or its flux) is somehow unreal.

Perhaps there's a factor of \imath [1] that gets silently omitted? [2]


[1] \imath = \sqrt{-1}
[2] ha ha ha

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Dr. Paul Kinsler
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