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From "Some Irreverant Thoughts About Heat" in the
Atmospheric
Thermodynamics book by Bohren and Albrecht, pages
24-28.
"It is very easy to deal with the definition of
heat: It does not exist.
Why waste time and effort defining something that
does not exist? Heating,
however, is the name of a macroscopic process in
which the internal energy
of a system changes by virtue of a temperature
difference between it and
its surroundings. Why 'macroscopic'? Because we
invoked temperature, a
macroscopic quantity. There is no such thing as the
temperature of a
single molecule, only a collection of many
molecules."
"When you grasp that heating is a way of doing
something and abandon all
attempts to identify heat as an entity, especially a
vague, metaphysical,
even paranormal entity, you can think more clearly
about thermodynamic
problems. We know of no examples in which invoking
a mythical substance
called heat leads to increased physical
understanding."
And once again, this list will be drawn into theHEAT of battle!
letter Anglo-Saxonisms)
(Personally, I'm quite attached to these four
about heat is not a noun:
At 7:42 PM -0700 1/30/01, Larry Smith, you wrote
Robert H. Romer, editor of
Would it not warm Jim Green's heart to know that
entitled "Heat is Not a Noun"?AJP has an editorial in the Feb 2001 issue
thinking by ridding theIt starts out: "Let's strike a blow for clear
Heat is not a substance."English language of the word heat as a noun....
<http://ojps.aip.org/journal_cgi/dbt?KEY=AJPIAS&Volume=CURVOL&Issue=C.-. .-. .-. .-
URISS#MAJOR2>
Larry
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Chuck BrittonEducation is what is left when
britton@ncssm.edu youhave forgotten everything
North Carolina School of Science & Math youlearned in school.
(919) 286-3366 x224Albert Einstein, 1936
Dr. Lawrence D. Woolf; Phone: (858)-455-4475;
www.sci-ed-ga.org
General Atomics; 3550 General Atomics Court; San
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