At 12:02 PM 5/10/2006 -0400, you wrote:
And Cornell! See:
http://www.doonesbury.com/strip/dailydose/index.html
It's not often you see "Thevenin and Norton equivalences" in a comic strip.
- Jed
Actually, the Doonsbury cartoon is flawed and incorrect.
Despite what the cartoon states, "since the current source (Norton
equivalent) has a resistor",
the fact is that BOTH Thevenin and Norton circuits have internal resistors.
[Also, this internal impedance is often not considered in cold fusion circuits
(as we have pointed out for quite a while).
The presence of an internal equivalent resistor in the power supply (and in
both equivalent circuits)
can be seen in any EE or Ham radio book, or on the web, for example at
http://www.facstaff.bucknell.edu/mastascu/eLessonsHTML/Source/Source2.html
Thus, what should have been stated is that the in open circuit mode,
there will be
current flowing through resistor across the current source in the Norton
equivalent
causing it to be warmer.
FWIW, the resistor is merely heating from dissipation, and that is not
really calorimetry,
either, which would have required calibration.
Mitchell Swartz
