Sun Spots
 

All that bright Mississippi Sun and heat and humidity around here,
sometimes when I am working in my yard, I see Sun Spots in my eyes.
I am 67, or maybe 68 years young, I don't know how old I am.
It's RUFF on me!
cuhulin

Sun Spots
 

"Szczepan Bialek" wrote in message
...

"Dave Platt" wrote
...
In article ,
Szczepan Bia³ek wrote:

The TRANSVERSAL magnetic disturbances have beautifull math. The most
beauty
math element is the displacement current.

But the magnetic disturbances are creates by AC CURRENT (not voltage).

So if the radio waves are emitted from the current zone of antenna
Maxwell
is right. If from ends - not.

Maxwell admired Ampere. But each genius works out his own theories. We
can
choose between them.

So, the obvious thing for you to do (as the proponent of an
alternative, nontraditional theory) is to devise an experiment which
can distinguish between these two cases.

The traditional theory is the acoustic theory. The nontraditional theory
is the Maxwell model.

only if you are still living in the 1800's.

Sun Spots
 

"Szczepan Bialek" wrote in message
...

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

both. when the current is high in the center it is creating a stronger
magnetic field, and when that current reaches the end it creates the
highest voltage so makes more electric field... both are part of the
electro-magnetic wave.

It is not Maxwell model. In it current create magnetic field and THIS
field create the electric field. AND SO ON.

ah, you believe 'and so on'?? the 'so on' means the changing electric
field creates a magnetic field... both conditions are required for
electromagnetic propagation. without the time varying displacement
current there would be no propagation. so yes, you can create a magnetic
field from the time varying electric field.


Your (engineering people) model is O.K. but it is quite different from
the Maxwell model. This is the reason that Art can wrote: " "For your
information you have never built an antenna that conforms in its
entirety to Maxwell';s laws thus you cannot possibly understand
radiation as presented by Maxwell."

the maxwell equations completely describe radiation from an antenna, so
all antennas, even arts, 'conform' to the maxwell equations.

Maxwell equations were modified by Heaviside and the next.
Tell us if Maxwell model is O.K. (radio waves are the transverse waves).
S*


Maxwell is ok.

Sun Spots
 

"Szczepan Bialek" wrote in message
...

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

The only reason for Maxwell model is the light polarisation. In his era
the polarisation was explained with transverse waves. Now we know (from
Clark) that the apparatus is polarised not waves.
Regards,
S*

i knew getting you and art together would be interesting... good for a
whole evening full of laughs! the waves must be polarized to interact as
observed with polarized antennas.

But here are the two possibilities.
1. The dipole radiates the transverse wave from centre,
2. The dipole radiate the two COUPLED longitudinal waves from the two
ends.

In the both cases the antennas (emitting and receiving) must be parallel.
Which place radiate the radio waves?
S*

the whole antenna radiates.

Sun Spots
 

On Wed, 03 Jun 2009 22:50:25 GMT, "Dave" wrote:

Maxwell is ok.

Heaviside rocks!

73's
Richard Clark, KB7QHC

Sun Spots
 

"tom" wrote in message
. net...
Sal M. Onella wrote:

I'm 66 now and smiling slightly, content at how well things have worked
out,
thanks to that lucky beginning.

"Sal"
(KD6VKW)



Thanks to you and everyone else for their service.


You're certainly welcome but I have to say I got as much out of it as I put
in. The training, experience, maturity and travel were incomparable.
(Living conditions far from cruise ship standards, but it was usually
comfy.)

"Sal"

Sun Spots
 

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

"Dave Platt" wrote
...
In article ,
Szczepan Bia³ek wrote:

The TRANSVERSAL magnetic disturbances have beautifull math. The most
beauty
math element is the displacement current.

But the magnetic disturbances are creates by AC CURRENT (not voltage).

So if the radio waves are emitted from the current zone of antenna
Maxwell
is right. If from ends - not.

Maxwell admired Ampere. But each genius works out his own theories. We
can
choose between them.

So, the obvious thing for you to do (as the proponent of an
alternative, nontraditional theory) is to devise an experiment which
can distinguish between these two cases.

The traditional theory is the acoustic theory. The nontraditional theory
is the Maxwell model.

only if you are still living in the 1800's.

Exactly in 1638:

"1638 - Rene Descartes theorizes that light is a pressure wave through the
second of his three types of matter of which the universe is made. He
invents properties of this fluid that make it possible to calculate the
reflection and refraction of light. The ``modern'' notion of the aether is
born. " From: http://maxwell.byu.edu/~spencerr/phys442/node4.html

The next:

"1717 - Newton shows that the ``two-ness'' of double refraction clearly
rules out light being aether waves. (All aether wave theories were
sound-like, so Newton was right; longitudinal waves can't be polarized.) "

In the History you find how many people analysed the issue: longitudinal vs.
transversal. In 1905 all stop.
But after 1905 peole build antennas. And they do not worry what the
radiation is like.
Sunner or later the issue appears again.
S*

Sun Spots
 

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

The only reason for Maxwell model is the light polarisation. In his era
the polarisation was explained with transverse waves. Now we know (from
Clark) that the apparatus is polarised not waves.
Regards,
S*

i knew getting you and art together would be interesting... good for a
whole evening full of laughs! the waves must be polarized to interact
as observed with polarized antennas.

But here are the two possibilities.
1. The dipole radiates the transverse wave from centre,
2. The dipole radiate the two COUPLED longitudinal waves from the two
ends.

In the both cases the antennas (emitting and receiving) must be parallel.
Which place radiate the radio waves?
S*

the whole antenna radiates.

But what radiate? Magnetic whirls or pressure-like electric wave?
S*

Sun Spots
 

Szczepan Bia³ek wrote:
But what radiate?

Particles called photons radiate. Photons are
emitted by decelerating electrons.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com

Sun Spots
 

"Szczepan Bialek" wrote in message
...

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

"Dave" wrote
...

"Szczepan Bialek" wrote in message
...

The only reason for Maxwell model is the light polarisation. In his
era the polarisation was explained with transverse waves. Now we know
(from Clark) that the apparatus is polarised not waves.
Regards,
S*

i knew getting you and art together would be interesting... good for a
whole evening full of laughs! the waves must be polarized to interact
as observed with polarized antennas.

But here are the two possibilities.
1. The dipole radiates the transverse wave from centre,
2. The dipole radiate the two COUPLED longitudinal waves from the two
ends.

In the both cases the antennas (emitting and receiving) must be
parallel.
Which place radiate the radio waves?
S*

the whole antenna radiates.

But what radiate? Magnetic whirls or pressure-like electric wave?
S*
magnets don't whirl and 'electric waves' are not like pressure... they
magnetic and electric field vectors are at right angles to each other and
the direction of propagation... both the electric and magnetic components
are needed for propagation... you can't have one without the other.