Light beam’s magnetic
field must be shifted for
½·π radians in regard
to electric one to
achieve continuity of
energy conservation
along the path,
formalized:
½·ε·E²+½·μ⁻¹·B²=Const.
This is the only way to
conserve light energy in
propagation. Classical
mechanical idealisation
of E-M wave is motional
dipole with rotation
collinear to trajectory.
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