Superposition
 

Cecil Moore wrote:
Tom Donaly wrote:
Division by zero is not infinity, Cecil, it's undefined.
It's good to see you agree that there's no conservation of
______ (fill in the blank)density, any more than there's a
law of the conservation of power. Have a good thanksgiving.

Division by a quantity as it approaches zero is not
always undefined, Tom. The limit, as the denominator
approaches zero, is often the first infinity, aleph-null.

The momentum in any volume of space must be conserved.
The joules in the joules/sec must be conserved. Please
don't try to hoodwink the uninitiated into believing
otherwise.

But you didn't write anything about "The limit, as the
denominator approaches zero," Cecil. I just wrote that
energy and momentum are conserved, but their rate of
delivery certainly isn't. You're just arguing for the sake of
hearing yourself argue, Cecil. As for Aleph-null, that's a
mathematico-logical fantasy that was brought into existence
by giving a name to a made-up abstraction, and then using
a set of artificial, logical manipulations on the name as proof of
its existence. It's a stunt Western philosophers have been using
for centuries to confuse the gullible. I'm surprised
an intelligent man of science, like you, fell for it, Cecil.
73,
Tom Donaly, KA6RUH

Superposition
 

Gene Fuller wrote:
I very carefully limited the scope of my comment to the situation
involving the two waves that supposedly cancel within a "dx" distance.
Anything else is purely in your imagination.

Yes, and that is exactly what I am talking about. For
your argument to be true, you must prove that the
reflection from a physical impedance discontinuity
never existed. So the question remains: Exactly how
does the reflected wave from a physical impedance
never exist, as you say? That wave is one of the
two waves you are talking about above.

Why does the reflected wave with 70.7v of incident
voltage and a physical Rho=0.7143 never exist? What
allows that reflected wave to violate the laws of
physics?

Here is the example again:


70.7v Rho=0.7143
source--50 ohm coax--+--1/2WL 300 ohm twinlead---50 ohm load

Why did the reflection from the physical impedance
discontinuity at '+' "never exist" according to you?
Please stop refusing to answer that simple question.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Gene Fuller wrote:
It is interesting that the spear I chucked through the heart of your
argument was met simply with a claim of "obfuscation". If that's the way
you want to play, then enjoy.

It is interesting to note that the ten spears you threw
in the dark were all aimed at diverting the issue rather
than answering one simple question.

You say the reflected wave from a physical impedance
discontinuity never existed - now prove that assertion.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Tom Donaly wrote:
But you didn't write anything about "The limit, as the
denominator approaches zero," Cecil.

I assumed that any reasonably rational person would
understand what I was talking about. I apologize for
misjudging you.

As for Aleph-null, that's a
mathematico-logical fantasy that was brought into existence
by giving a name to a made-up abstraction, and then using
a set of artificial, logical manipulations on the name as proof of
its existence. It's a stunt Western philosophers have been using
for centuries to confuse the gullible. I'm surprised
an intelligent man of science, like you, fell for it, Cecil.

Good grief, Tom. Aleph-null is the number of natural numbers,
a very useful concept. I'm surprised you are ignorant of such.

Incidentally, truth, love, and justice are all names
given to made-up abstractions. Too bad you reject them.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Cecil Moore wrote:
Tom Donaly wrote:
But you didn't write anything about "The limit, as the
denominator approaches zero," Cecil.

I assumed that any reasonably rational person would
understand what I was talking about. I apologize for
misjudging you.

As for Aleph-null, that's a
mathematico-logical fantasy that was brought into existence
by giving a name to a made-up abstraction, and then using
a set of artificial, logical manipulations on the name as proof of
its existence. It's a stunt Western philosophers have been using
for centuries to confuse the gullible. I'm surprised
an intelligent man of science, like you, fell for it, Cecil.

Good grief, Tom. Aleph-null is the number of natural numbers,
a very useful concept. I'm surprised you are ignorant of such.

Incidentally, truth, love, and justice are all names
given to made-up abstractions. Too bad you reject them.

The turkey meat must have been real dry at your place this
Thanksgiving, Cecil. So dry, it dried up your
reason. Better luck at Christmas.
73,
Tom Donaly, KA6RUH

Superposition
 

Tom Donaly wrote:
The turkey meat must have been real dry at your place this
Thanksgiving, Cecil. So dry, it dried up your
reason. Better luck at Christmas.

The technical content of your posting is noted, Tom.
I don't have a bone to pick with you so I wonder why
you engage in such ad hominem attacks.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Cecil Moore wrote:

You say the reflected wave from a physical impedance
discontinuity never existed - now prove that assertion.

As usual no response to this simple challenge. People
who assert that reflected waves never existed have never
offered one iota of proof for that assertion. OTOH, one
only need look in a mirror to see those reflections.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Cecil Moore wrote:
Cecil Moore wrote:

You say the reflected wave from a physical impedance
discontinuity never existed - now prove that assertion.

As usual no response to this simple challenge. People
who assert that reflected waves never existed have never
offered one iota of proof for that assertion. OTOH, one
only need look in a mirror to see those reflections.

Cecil,

We were talking about the equivalent of AR glass, with no reflections.

Do you see yourself when you look into an AR mirror? That would explain
a lot.

8-)

73,
Gene
W4SZ

Superposition
 

Gene Fuller wrote:
We were talking about the equivalent of AR glass, with no reflections.

Sorry Gene, there are reflections from AR glass because
the index of refraction is in the ballpark of 1.2222.
The non-existence of reflections from a 1.0 to 1.2
transition in the index of refraction is impossible.

Do you see yourself when you look into an AR mirror? That would explain
a lot.

Of course, human eyes cannot respond in 1/2 of a cycle
at light frequencies. If one had an instrument sensitive
enough, one would see that exact reflection during the
first 1/2 cycle. And it never goes away - it just gets
canceled by a complimentary reflection from the "load".

Maybe we need to slow it down to your brain speed. Would
a two second delay in the beginning of the cancellation
process work for you? SGCL is a Signal Generator equipped
with a Circulator and Load resistor. The lines are lossless.
t0 is when the source wave is first incident upon the
impedance discontinuity at '+'.

Rho=0.7143
100w SGCL--50 ohm line--+--1 sec long 300 ohm line--50 ohm load

At t0+1 sec, a 51 watt reflection exists at point '+' and the
forward power on the 300 ohm line is 49 watts. That 51 watt
reflected wave exists for the two seconds it takes the reflected
wave from the load to arrive. That 51 watt reflected wave is
warming up the load resistor in the circulator during that
time.

You say that 51 watt reflection never existed. Good luck
on being able to prove your assertion.
--
73, Cecil http://www.w5dxp.com

Superposition
 

Cecil Moore wrote:
Gene Fuller wrote:
We were talking about the equivalent of AR glass, with no reflections.

Sorry Gene, there are reflections from AR glass because
the index of refraction is in the ballpark of 1.2222.
The non-existence of reflections from a 1.0 to 1.2
transition in the index of refraction is impossible.

Do you see yourself when you look into an AR mirror? That would
explain a lot.

Of course, human eyes cannot respond in 1/2 of a cycle
at light frequencies. If one had an instrument sensitive
enough, one would see that exact reflection during the
first 1/2 cycle. And it never goes away - it just gets
canceled by a complimentary reflection from the "load".

Maybe we need to slow it down to your brain speed. Would
a two second delay in the beginning of the cancellation
process work for you? SGCL is a Signal Generator equipped
with a Circulator and Load resistor. The lines are lossless.
t0 is when the source wave is first incident upon the
impedance discontinuity at '+'.

Rho=0.7143
100w SGCL--50 ohm line--+--1 sec long 300 ohm line--50 ohm load

At t0+1 sec, a 51 watt reflection exists at point '+' and the
forward power on the 300 ohm line is 49 watts. That 51 watt
reflected wave exists for the two seconds it takes the reflected
wave from the load to arrive. That 51 watt reflected wave is
warming up the load resistor in the circulator during that
time.

You say that 51 watt reflection never existed. Good luck
on being able to prove your assertion.

Cecil,

You are just toooo funny.

You gas on about something that you believe happens in 1/2 cycle, and
you want ME to prove something???

Going back to sleep.

73,
Gene
W4SZ