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Old February 8th 04, 05:04 AM
Dr. Slick
 
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Cecil Moore wrote in message ...
J. Harvey wrote:
3) Black wave is (by any reasonable definition) NOT MOVING. Neither
left nor right. It has no direction. It IS standing still.


The Black wave loop is moving up and down indicating that the
phase is changing from positive to negative. The cosine of the
phase angle indicates the direction of current flow. How can
you say it has no direction? And only a blind person would assert
that the current loop is standing still while moving up and down.
Current that stands still is zero current.

A jump rope is a standing wave. Do you also assert that a jump
rope in motion is standing still?



God. Now i remember why i stopped posting to this group!

Cecil, when are you gonna come out with your 2+2=4 dissertation?


Slick
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Old February 8th 04, 05:16 AM
Cecil Moore
 
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Dr. Slick wrote:
Cecil, when are you gonna come out with your 2+2=4 dissertation?


I already did. 2 amps added in phase with 2 amps equals 4 amps flowing
in the same direction. Some people say that 4 amps stands still. Do
you think current can stand still?
--
73, Cecil http://www.qsl.net/w5dxp



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Old February 8th 04, 12:39 PM
Dave Shrader
 
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Gee Cecil, et al, Charge can stand still! It does in a fully charged
capacitor.

Charge can move from place. It takes time for charge to move from place
to place. The amount of charge moved from place to place divided by the
time to move it from place to place is called current.

VOILA!! dQ/dt = current!! Ah! Physics is wonderful!!!!!!!!

:-)

C'mon guys! You're arguing about angels on pin heads.

DD


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Old February 8th 04, 02:16 PM
Yuri Blanarovich
 
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Do
you think current can stand still?
--
73, Cecil http://www.qsl.net/w5dxp


I will help :-)

Nope, is no current when no flow, is standing water. If flow then current, my
dicksionary say so. Charge and credit cards can stay.

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Old February 8th 04, 04:27 PM
J. Harvey
 
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Cecil Moore wrote (in part):
...I don't even read the rest of posting.


A very bad policy. In this case, you missed the part where you were
completely pre-empted - it made your subsequent response at that point
rather useless. Hardly a timesaver.

Of course, this assumes that you're being honest about what really
happened. I'm willing to make that assumption. I know that you're
busy... ;-)

Carry on then.


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Old February 8th 04, 06:30 PM
Cecil Moore
 
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Yuri Blanarovich wrote:
Do
you think current can stand still?


I will help :-)

Nope, is no current when no flow, is standing water. If flow then current, my
dicksionary say so. Charge and credit cards can stay.


For those who think AC (and RF) current doesn't change directions every
1/2 cycle, here is a simple experiment, installed in a transmission line
with or without reflections, to prove otherwise:

diode
|\ |
+----| *|---(DC current meter)--+
| |/ | |
-------+ +---------
| | /| | |
+--(DC current meter)---|* |----+
| \|
diode

The upper diode will rectify the current flowing toward the right.
The lower diode will rectify the current flowing toward the left.
Ideally, the meters will read the same.

For those who think current stands still at a standing wave current loop,
if one installs the above measuring equipment at a current maximum point
on a standing wave, it will read the same current on both meters and that
current will NOT be zero.
--
73, Cecil http://www.qsl.net/w5dxp



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Old February 8th 04, 06:35 PM
Cecil Moore
 
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J. Harvey wrote:

Cecil Moore wrote (in part):
...I don't even read the rest of posting.


A very bad policy.


Not an official policy, just a bad habit. When I read, "There are no
absolutes!", I stop reading and ask, "Are you absolutely sure?" :-)

In this case, you missed the part where you were
completely pre-empted - it made your subsequent response at that point
rather useless. Hardly a timesaver.


I apologize and will try to kick that bad habit. It happened twice on
the same day. Mea Culpa
--
73, Cecil http://www.qsl.net/w5dxp



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Old February 8th 04, 07:22 PM
Richard Harrison
 
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Cecil, W5DXP wrote:
"That you were talking about "at any specific point" wasn`t apparent to
me from your following assertion."

I apologize for my lack of clarity. When I try to simplify by omission
of detail, lack of specificity may lead to the wrong conclusion. I`ll
try to explain succinctly yet in enough detail to avoid misleading.

Best regards, Richard Harrison, KB5WZI

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Old February 8th 04, 07:50 PM
Cecil Moore
 
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Richard Harrison wrote:

Cecil, W5DXP wrote:
"That you were talking about "at any specific point" wasn`t apparent to
me from your following assertion."

I apologize for my lack of clarity. When I try to simplify by omission
of detail, lack of specificity may lead to the wrong conclusion. I`ll
try to explain succinctly yet in enough detail to avoid misleading.


My fault, I should have assumed that the problem was my interpretation.
Blame it on the spoiled grape juice. :-)
--
73, Cecil http://www.qsl.net/w5dxp



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Old February 8th 04, 09:12 PM
Tdonaly
 
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Yuri Blanarovich wrote:
Do
you think current can stand still?


I will help :-)

Nope, is no current when no flow, is standing water. If flow then current,

my
dicksionary say so. Charge and credit cards can stay.


For those who think AC (and RF) current doesn't change directions every
1/2 cycle, here is a simple experiment, installed in a transmission line

Cecil wrote,
with or without reflections, to prove otherwise:

diode
|\ |
+----| *|---(DC current meter)--+
| |/ | |
-------+ +---------
| | /| | |
+--(DC current meter)---|* |----+
| \|
diode

The upper diode will rectify the current flowing toward the right.
The lower diode will rectify the current flowing toward the left.
Ideally, the meters will read the same.

For those who think current stands still at a standing wave current loop,
if one installs the above measuring equipment at a current maximum point
on a standing wave, it will read the same current on both meters and that
current will NOT be zero.
--
73, Cecil http://www.qsl.net/w5dxp



It's the charge flowing, Cecil. There wouldn't be any point in making
anything
out of the difference between charge and current flow except that you're
writing
about electromagnetic phenomena rather than network analysis where it's common
to write about current flow as if the current itself was was moving. As long as
you
continue to be blind to these kinds of subtle distinctions, your theories are
going
to remain little more than crackpot ranting. Yuri's in the same boat.
The other day, you made another mistake. You wrote that e^iwt represents
a standing wave. It doesn't. If you want to represent a standing wave
successfully
you have to have length included in the formula as in
2Acos(wt+ph/2)cos(kx+ph/2)
where k is 2Pi/Lambda and ph is the phase difference between two equal
amplitude
waves travelling in opposite directions, x representing length and A,
amplitude.
You're the victim of sloppy thinking and theorizing, Cecil. You think that
you can
use a strange combination of network theory and transmission line theory
definitions
and ideas to make sort of a poor man's electromagnetics, and that if you make a

large enough number of posts to this newsgroup your theory will be proved
right. If it were that easy, we could burn all the old electromagnetics
textbooks,
and smugly congratulate one another as we ate our marshmallows - roasted
over the bonfire - happy in the knowledge that we had finally rid the world of
vector calculus.
73,
Tom Donaly, KA6RUH


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