On Jun 1, 2:39*am, Szczepan Bia³ek wrote:
*"Richard Clark" om...



On Sun, 31 May 2009 21:08:22 +0200, Szczepan Bia?ek
wrote:

But do you know what the electricity was like in the
Maxwell theory from 1865?

It employed 20 equations *with 20 unknowns. *Can you name THREE?

Let's skip that, because you can not, of course.

It was recast as quaternions - I won't ask the impossible from you to
state TWO.

You have yet to manage how long it took for ONE electron to travel
end-to-end on Hertz's first loop.

So answering your questions is like sending Cuisinart to Darfur. *Do
you know what electricity is like there? *Any year?

"1861 *- *Maxwell publishes a mechanical model of the electromagnetic field.
Magnetic fields correspond to rotating vortices with idle wheels between
them and electric fields correspond to elastic displacements, hence
displacement currents. The equation for *now becomes , where *is the total
current, conduction plus displacement, and is conserved: . This addition
completes Maxwell's equations and it is now easy for him to derive the wave
equation exactly as done in our textbooks on electromagnetism and to note
that the speed of wave propagation was close to the measured speed of light.
Maxwell writes, ``We can scarcely avoid the inference that light in the
transverse undulations of the same medium which is the cause of electric and
magnetic phenomena.'' Thomson, on the other hand, says of the displacement
current, ``(it is a) curious and ingenious, but not wholly tenable
hypothesis.''

"1864 *- *Maxwell reads a memoir before the Royal Society in which the
mechanical model is stripped away and just the equations remain. He also
discusses the vector and scalar potentials, using the Coulomb gauge. He
attributes physical significance to both of these potentials. He wants to
present the predictions of his theory on the subjects of reflection and
refraction, but the requirements of his mechanical model keep him from
finding the correct boundary conditions, so he never does this calculation."
From:http://maxwell.byu.edu/~spencerr/phys442/node4.html

Try understand: "the mechanical model is stripped away and just the
equations remain."

*Now engineers are using model with compressible, massive electrons. The
equations are used by teacher to teach the math.

According to Maxwell model the radio waves are transversal. Are such in your
radio reality?

S*

73's
Richard Clark, KB7QHC



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Hi S,
Interesting to read what you say as there are many similarities to my
antenna work.
A small addition with respect to light formation. Displacement current
is the action required of three dimensional equilibrium which is why I
often point to the helicopter as an example,
same thing goes for a gyroscope or the Sedgway scooter. It is this
circular motion that holds to the understanding of light since this
provides the spin of a particle such that it has straight line
trajectory. The frequency of circular motion is what changes when the
particle
enters a medium that is resistive where the spin increases to maintain
the straight line projection. The energy for this increase in spin is
the latent energy that is removed from
the particles potential energy similar to latent heat with liquids.
Thus energy is conserved
by the increase in spin which is analogous to change in frequency!
This change in frequency brings the particle into the area of color ,
light and X rays ie higher frequencies and the latent energy shows up
as light until there is no more energy left and the particle has
vaporized such that light progresses to invisiblity. This being
similar to the effects shown of a meteorite as it comes into contact
with the resistive environment of Earth.
With respect to radiation from the ends of a radiator. This can only
happen when the radiator is a fraction of a wavelength when the law of
equilibrium is violated. The accellaration of charge at the end is
without spin applied and tho there is radiation it becomes non
directional and unable to overcome the gravitational force and falls
within a short distance.
Regards
Art