Question about "Another look at reflections" article.
On 30 mayo, 15:41, K1TTT wrote:
On May 30, 5:05*pm, "Szczepan Bialek" wrote:
*"K1TTT" ...
On May 30, 9:55 am, "Szczepan Bialek" wrote:
In optics are mirrors which reflect and transmit the desired proportion
of
light.
The end of the dipole reflect and transmit. The proportion is measured as
VWSR.
But for this you need the Electric Wave Model.
EM was stripped away by Royal Society in 1864.
S*
Mr. S... please, you need to do 2 things... first, get a better
newsgroup editor or use the groups.google.com web site to post
replies, whatever you are using now messes up the indentation for
quoted text
For you and Cecil I must make by hand the *indentation for
quoted text . The rest are O.K.
no they aren't... look above, which text did you write and which did i
write?
i used to use outlook express like you are using, and it is bad. *get
something better if you like to quote lots of text.
*In schools are all theories.
the only purpose for disproved theories in schools is for historical
context. *sometimes it is useful to show students what doesn't work so
they don't waste time repeating past mistakes. *aether theories are
one that is taught and then demonstrated in class as incorrect. *once
the student makes the measurements they get a better feeling why
aethers are bogus.- Ocultar texto de la cita -
- Mostrar texto de la cita -
Hi all
Walt is not espousing a theory
Please, give me a name to name it.
They have what is called "internal consistency."
Who are "they", Walter's propositions?
Before advance more Richard. All off you share or ascribe a
"existence" notion determinated by observator measurements? It is long
time philosophical question remember, trees, sounds...
A confused statement
I know. Communicate minds takes its time. It is more easy as we share
the basic assumptions neccesary for that. It's what I'm trying.
-------------
Two light waves can pass through each other at the same point in space without affecting or interacting with each other because they are *not collinear*.
Why? As I learnt superposition principle not depends of collinearity.
English Oxford dictionary I have, define "Interact" as "act on each
other", similar concept in spanish I think. I learnt superposition as
involving 'no interaction'. both waves still identical to itself in
superposition (in nonlineal systems they certainly can interact).
For pure sinusoidal waves, the transmitted wave, the re-reflected wave, and the constructive interference wave are all coherent and collinear and merge into a single forward wave flowing toward the load. The component waves become inseparable.
I can agree with above paragraph but, for that I just said, I think
not with this...
Therefore, any two coherent RF waves traveling in the same direction in an RF transmission line, will interact and have a permanent effect.
As I undestand, two o more superposed waves can be added or
substracted to render a resultant but we do not call that interaction
(I am excude here the observer -Richard's observations- notion for not
to get out of point).
Two traveling waves with same direction, frequency and phase would be
certainly indistinguishable of a single one equal to the vectorial sum
of the two cited, by our instruments. For my conceptual notions adding
or substraction are not interaction. I am not dare to advance more on
your kindly answers because this notions are hardly vinculated to our
issue. Would be appropiate "slow down" a little and work on it?, what
do you think?
......
About Roy's differences, At two opportunities I read here issues
(problems?) about Rs. Why do not you agree in a simple initial
Thevenin model? (it is a question not a suggestion, I don't know how
correctly translate my sentence).
Cecil, can you find a "energy distribution" concept compatible with
special case of unidirectional line space where all of you can agree?
Transmission/reflection notions (about energy) do not represent that
concept?
A mental exercise (it is doesn't a criticism, only a idea, remember I
am interesed in your analogies): Suppose we are not capable to
perceive any light (or realize of it), only HF spectrum; could you
share (agree?) concepts with our other "blinded" colleagues :) to
analize this stuff?. I believe that is absolutly a "Yes" (of course
you could use your knowledge in optics to devise good RF arguments,
but you have to silence it, because you know they "antenna senses" are
note light sensitive.
.....
Eugene Hecht, in "Optics", describes standing waves of visible light in free space. I'm not sure that humans can "see" the standing wave detail because the frequency is so high, but standing waves of visible light can certainly exist in free space.
In perfect vacuum free space without any material stuff to reflect
light or bring our retinas into the region in some way?
......
73 to K1TTT. Several years ago I visited your web page, (I have got
them in my hard disk). Sorry to Szczepan for not answer your comments
I hard trying don't run out so much off topic :)
73
Miguel Ghezzi - LU6ETJ
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