Posted by anyman on Nov 11, 2002 at 00:21
(61.183.178.118)
i don’t remember if it was the last board or the board before (ie the two most recently archived boards) but we had an interesting thread, perhaps originated by dano, on the 2LOT being overthrown...
it was pretty conclusive even then that such was not the case, that the 2d law of thermodynamics was yet sound…below is further affirmation of the law’s inviolability...at least to date :-)
(there are two letters at the same linked site...you must go beyond the references of the first letter to find the second letter and its references)
Adrian Cho reports on a lively controversy presently raging over what is called "Tsallis entropy," which has been wrongly suposed to be the physical entropy of the natural world, superseding the universal and general Clausius-Boltzmann statistical-thermodynamic entropy. The new definition of entropy developed by Constantino Tsallis is a very useful--and sophisticated--tool for generating a so-called nonextensive thermo-statistics, which can be used for adjusting and analyzing experimental data in certain particular situations, but it is not at all a formidable breakthrough in fundamental physics, as assumed by some....it is utterly wrong to identify Havrda-Charvat-Tsallis "entropy" with the physical entropy of systems in nature.
Tsallis statistics does not supersede Boltzmann-Gibbs statistics; it is one of infinitely many that can be used to "patch" the inconvenience, noted above, that arises when one is unable to satisfy Fischer's principle of sufficiency in Boltzmann-Gibbs statistics.
Roberto Luzzi, Aurea R. Vasconcellos, J. Galvao Ramos
sa -- "a fresh take on disorder, or disorderly science?" (news focus, 23 aug, p 1268)
~~~~~~~
...does not involve modifying the definition of entropy.
Some experts have said that the success of Tsallis entropy may come from mathematical flexibility in the empirical parameter m.
Ralph V. Chamberlin
(all bold emps mine; all others in original – am)
the full text of both letters may be found on the same site page offered below
order from chaos OR chaotic scientists --- full story at science
Re: that ol' 2d law of thermodynamics again... DA Morgan 11/11 17:24
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