Is Entropy Natural?
Henry
scuffling at gmail.com
Tue Oct 28 12:31:38 CDT 2008
http://www.sciam.com/article.cfm?id=how-nature-breaks-the-second-law
"Thermodynamics is one of the most widely misunderstood branches of physics.
Laypeople and scientists alike regularly use concepts such as temperature,
pressure and energy without knowing their rigorous meaning and subtleties.
But those of us who plumb the theory's depths are acutely aware of the need
to take care. The Achilles' heel of thermodynamics is that, strictly
speaking, it applies only when the system under study is in a quiescent
state called equilibrium."
"despite its empirical success, the second law often seems paradoxical. The
proposition that systems steadily run down seems at odds with the many
instances in nature not only of disorganization and decay but also of
self-organization and growth. In addition, the original derivation of the
second law has serious theoretical shortcomings. By all rights, the law
should not apply as widely as it does."
http://en.wikipedia.org/wiki/Second_law_of_thermodynamics
"The second law of thermodynamics is an expression of the universal law of
increasing entropy, stating that the entropy of an isolated system which is
not in equilibrium will tend to increase over time, approaching a maximum
value at equilibrium."
Henry Mu
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