Natural Science Forum / Physics / Electromagnetism / March 2007

M. Saffman does not object that experimental and theoretical works
prove an inevitability of an introduction of the spin tensor into the
electrodynamics, but he judges that it is not a significant new result
in physics.

Here's a simple question.
In Elecromagnetics there are lots of relatively simple experiments
that can demonstrate the various principles and fields.
But I've never seen one that can directly demonstrate a displacement

Can anyone recommend simulation code (source or compiled) for finding
the 3D magnetic field for constant currents (or, for that matter,
permanent magnets)?
If it matters, the system I want to analyze consists of six large

The energy of the quantum mechanical harmonic oscillator is proved to
be quantized after solving the Hermite equation and discovering that
normalizable solutions of the wavefunction exist only for a discrete
spectrum of energy. When the electromagnetic field is quantized in the

We know from published research that histamines can be released in the human
body using radiowaves of a certain frequency. Does anyone know the energy
required to do this? Would a cellphone have enough energy and what would the
range be?