Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!linus!philabs!seismo!hao!hplabs!sri-unix!gwyn@brl-vld From: gwyn%brl-vld@sri-unix.UUCP Newsgroups: net.physics Subject: Re: Consistency in science!?!!? Message-ID: <15493@sri-arpa.UUCP> Date: Sun, 15-Jan-84 05:46:31 EST Article-I.D.: sri-arpa.15493 Posted: Sun Jan 15 05:46:31 1984 Date-Received: Tue, 17-Jan-84 02:22:49 EST Lines: 24 From: Doug Gwyn (VLD/VMB) One problem is that the idealized "physics" taught in school tends to dwell on phenomena that can be modeled with simple mathematics. Phase transitions do not fall into this category. I don't think there is any real mystery about the freezing of a supercooled solution being triggered by sudden release of pressure, but great care must be taken in correctly applying thermodynamics to the situation, since principles that are derived from consideration of slow, reversible change simply do not apply in this case. Non- equilibrium thermodynamics should be able to give an unambiguous statement of what happens, although I don't find the problem of enough interest to go to the trouble of working it out. As to the possibility of several "equally correct" answers, that is a consequence of the multiplicity of chains of reasoning that can lead to the same result. What one considers a good "explanation" also enters into the debate over the best answer. Finally, Sturgeon's law applies: 90% of EVERYthing is crap, and that applies to the work of scientists too. After the recent creationism noise on this mailing list, it should be apparent that nobody is filtering the contributions to eliminate bogus responses (nor am I suggesting that they should).