Re: 2nd law of thermodynamics in question

Hi Richard,


Richard Herring wrote:
In message <1164208504.830498.303770@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Paul
<softwarelabus@xxxxxxxxx> writes
Richard Herring wrote:
In message <1164136206.380555.220450@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Paul
<softwarelabus@xxxxxxxxx> writes
Richard Herring wrote:
In message <1164127036.944959.158410@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Paul
<softwarelabus@xxxxxxxxx> writes

Mind reading again? That's the first time I've asked that question. You
referred to exchanging the conductors. I'm asking about swivelling the
T-connector, leaving the scope probe connected to it. You didn't answer
that question.

The goal as I understand is an attempt to measure the current

The potential difference.
as close
to the T-connector.

_Across_ the T-connector.

That's fine, but how are you proposing to do that given the T-connector
splits?

This is what I've been describing, in cross-section:

-------------------------------------------------------------
A -----------------------------+------------------------------- B
A ---------------------------- | ------------------------------ B
| | |
C C

The parallel lines represent a coaxial cable with a T-connector at the
centre.

A signal generator is connected between either AA or BB and a resistor
between BB or AA respectively. Energy flows from the generator to the
resistor. You connect your oscilloscope to CC. That's what I meant be
"across the T-connector", in case that wasn't clear.

The challenge was then to determine which of AA and BB is the generator
and which is the resistor by a single measurement of potential
difference at CC.

Wow, you keep adding on and on and on more details,

Inverse goalpost fallacy.

Google groups is historical evidence of the fact.




until now your
question has no resemblance to your original. Originally you wanted to
simply know which direction the energy was traveling. Now the question
has magically transformed into a challenge regarding the detection of
two *material* objects,

Just humouring your evident preference for the concrete over
abstractions.

One possible indication of a person in the act of "saving face" is when
they reply with claims lacking detailed descriptions. Again, note my
comparison of your original question compared to what's become your
challenge. I'll remind you that admittance of error is an honorable
act.




"The challenge was then to determine which of
AA and BB is the generator and which is the resistor by a single
measurement of potential difference at CC."

The fact that you can't see they are isomorphic is very telling.

Once again you post nothing more than rhetoric with claims lacking
detail. Asking one to detect the direction of energy of a stable
oscillating signal is asking to measure the direction of current. Such
a question is different than asking one to detect where the generator
is connected relative to the resistor, period. :-)



Regards,
Paul

.

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