Standing-Wave Current vs Traveling-Wave Current
 

Cecil Moore wrote:

...
No-brainer for anyone who knows what particles are
available inside a transmission line.

Sorry for being short. My daughter is having
emergency surgery today and I am preparing
for a trip to warm sunny Syracuse, NY. :-(

I wish you and the daughter well. I wouldn't wish NY on anyone, indeed,
California neither! I have three sons, I can empathize more than you
can imagine ... no offense taken, my skin is much thicker than that.

Take care of the family, this can all continue at a later date ...

Regards and good luck,
JS

Standing-Wave Current vs Traveling-Wave Current
 

art spewed:
So you see the reason why aluminum is used for radiators because they
belong to a familly known as diamagnetic material.

so art, how do my steel tower 80m 4-square verticals work? how do most AM
broadcast towers that are all steel radiate?


A radiator in equilibrium is a full wave length

long ago, and far away... well maybe a couple months, and still in this
group, you said 1/2 wave was the equilibrium size? so which is it, full
wave or half wave? and where did gauss go?? how do these funny cosmic dust
things fit into his equation??

Standing-Wave Current vs Traveling-Wave Current
 

On 3 Jan, 12:29, (Richard Harrison) wrote:
Art wrote:

"It is obvious that the completion of a cycle thus at no time has
current moving other than in a single direction."





We have a "cycle" because the current alternates or reverses direction
twice each cycle.

Geez. What is the matter with you? Ofcource A.C reverses direction. I
know you will fight change but in no way does that change anything
other than we don't have a lot of things bouncing around like this
long thread is suggesting as well as you .



Hams likely agree with Terman that radio waves are produced to some
extent whenever a wire in open space carries a high-frequency current.
(Page 864, opus of 1955)

Ofcourse hams are aware that radio waves are produced when a wire is
subject to a alternating current. They have normally call this wire a
antenna or a radiator. Nothing special there either. What is your
message OM?


Kraus says on page 12 in the 3rd edition of "Antennas":
"Antennas convert electrons to photons, or vice versa."

He could be correct in that opinion! there are many opinions out there
including mine but other theories have not been established by
previously known facts


Also: "Thus, time-changing current radiates and accelerated charge
radiates."

Richard, it is a basic fact that a time varying field creates
radiation and I have explained in detail the sequence of events. I
have NO problem with you debating a fact that I have given
or even supply a equivalent sequal of events supplied by another that
implicitly contradicts
what I have written but you are just supplying words. Again what is
your message?Spit it out please.



Also: The currents on the transmission line flow out on the antenna and
end there, but the fields associated with them keep on going.

No silly.

When the current stops decay begins. We have not found a means for
perpetual energy
as far as I know. Current flow in a parallel circuit is maintained by
a generator which re supplies energy that is lost in the circuit. When
you turn off the generator the current flow stops. I really am not
interested on what could happen when you turn the power off I just
walk away and why not? I wish Richard you would stop putting spam on
this thread
Surely there are other things for you to do in life other than
dropping names and inane suggestions which by their very nature donot
require a response. You are just copying the antics of the other
Richards trying to taunt as if you are afraid of something which you
want to put down. Why not find a truth and the use it to debate a
position? That is called a debate or a conversation? There is no nead
to bait and taunt.
Art Unwin KB9MZ....XG



Best regards, Richard Harrison, KB5WZI

Standing-Wave Current vs Traveling-Wave Current
 

Richard Harrison wrote:
Richard Clark wrote:
"Does a surfer violate this definition?"

Traveling waves carry surfers to the beach. Standing waves only
oscillate the water surface up and down in place.

Best regards, Richard Harrison, KB5WZI


Richard,

A few questions:

* Have you ever seen a surfer?
* Did you perhaps notice that the surfer typically travels much faster
than the water?
* Did you ever think that is why the boards are shaped the way they are?
* Did you ever wonder how the surfer moves around if he or she is only
riding on the moving water?
* Did you ever see one of those surfer parks where folks surf on
man-made waves that stay in one place?
* Do you think perhaps the slope of the water might be important?
* Does a traveling wave have a different slope than a standing wave?

What does Terman say about all of this?

73,
Gene
W4SZ

Standing-Wave Current vs Traveling-Wave Current
 

On 4 Jan, 10:31, "Dave" wrote:
art spewed:

So you see the reason why aluminum is used for radiators because they
belong to a familly known as diamagnetic material.

so art, how do my steel tower 80m 4-square verticals work? *how do most AM
does broadcast towers that are all steel radiate?


It has a galvanised skin which is a diamagnetic material. Just like
aluminum current fliows on the surface. But Dave you surely knew that
so why did you place the question ?
Are you joining the Richard trio and try to spam any thread out of
existance that you dislike?

We already have plenty of spammerrs on all of the Radio newsnets. You
and the other spammers would do ham radio a real favor if you
generated your own newsgroup for comment rather than
clogging all the threads on the newsgroups.
Art

Standing-Wave Current vs Traveling-Wave Current
 

Cecil Moore wrote:

Optical physicists have been "adding" power
densities (irradiance) for centuries.

Yes, but physicists who publish in scientific journals and textbooks
tend to be more careful in their calculations than are people who
publish on the internet. That is why text books are generally
considered reliable sources, whereas the internet newsgroups (where
people can write whatever they please without consequence) are
generally not.

73, ac6xg

Standing-Wave Current vs Traveling-Wave Current
 

Keith Dysart wrote:

On Jan 3, 2:14 pm, Jim Kelley wrote:

And so it appears in cases where there is no transfer of energy that
one might claim that waves bounce off of one another. There are no
other examples, and no supporting mechanism for it of which I am
aware, and so one might be equally justified in claiming that waves
pass through each other in all cases.


I'd suggest that this is only if the concept of the
waves in question does not include energy. In the
limiting case of the two waves being identical no
energy crosses the nodes. In other cases, only a
portion of the energy crosses the nodes.

If the concept of the waves includes energy, some
explanation is required to account for the wave
crossing the node, but its energy does not.

Some readers like to superpose energy just as
they do voltage, but in general this is not a
valid operation so I am uncomfortable using
it as the explanation.

...Keith


Hi Keith,

I'd like to thank you for your thoughtful and courteous post.

I agree with your observation about superposition of energy [and
power]. In fact this would seem to lend support to the idea that
there can be no 'energy nodes' on a transmission line.

Question for you: can you reference a thermodynamic treatment of this
concept of 'energy not crossing a node'? I think that thermo should
relate to just about energy transfer issue we might want to discuss,
including electromagnetic energy.

Thanks,

Jim Kelley, AC6XG

Standing-Wave Current vs Traveling-Wave Current
 

Gene Fuller wrote:
* Did you perhaps notice that the surfer typically travels much faster
than the water?

Surfers even travel faster than the wave energy.
Sailboats travel faster than the wind.

Unfortunately, for your argument, nothing in the
universe (AFAWK) travels faster than an EM wave.
But maybe you can invent Warp Drive or Slip-Stream
Drive. :-)
--
73, Cecil http://www.w5dxp.com

Standing-Wave Current vs Traveling-Wave Current
 

art continued spewing:


It has a galvanised skin which is a diamagnetic material. Just like
aluminum current fliows on the surface. But Dave you surely knew that so
why did you place the question ?

not all tower is galvanized, some is simply painted... but art, you surely
knew that, so why make that assumption. Just to prove you wrong i just
stuck a piece of old iron wire, rust and all, in the connector for my ht and
miracle of miracles, it still transmits!

oh, and those cosmic dust particles, do they settle on antennas that are
inside buildings or under radomes? do they get blown off in the wind or fly
off when a car with an antenna goes around a tight corner??

Standing-Wave Current vs Traveling-Wave Current
 

Jim Kelley wrote:


Cecil Moore wrote:
Optical physicists have been "adding" power
densities (irradiance) for centuries.

Yes, but physicists who publish in scientific journals and textbooks
tend to be more careful in their calculations than are people who
publish on the internet. That is why text books are generally
considered reliable sources, whereas the internet newsgroups (where
people can write whatever they please without consequence) are generally
not.

Jim, you are posting to an internet newsgroup so
does that automatically make your posting equivalent
to the lowest layer of whale s__t in the deepest
part of the ocean? :-)

Please tell us exactly what is wrong with the irradiance
equation published in Born & Wolf and "Optics", by Hecht.
--
73, Cecil http://www.w5dxp.com