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- From: mcirvin@husc8.harvard.edu (Mcirvin)
- Newsgroups: sci.physics
- Subject: Re: Axiom of Physics
- Message-ID: <mcirvin.714873508@husc8>
- Date: 26 Aug 92 23:58:28 GMT
- References: <1992Aug26.174922.6115@pellns.alleg.edu> <25781@dog.ee.lbl.gov> <1992Aug26.193609.24313@murdoch.acc.Virginia.EDU>
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- crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass) writes:
-
- >In article <25781@dog.ee.lbl.gov> sichase@csa3.lbl.gov writes:
- >>
- >>Eventually, one hopes that all axioms undergo direct experimental test,
- >>verifying the fundmental assumptions of the theory by direct confrontation
- >>with reality. At that point, I suppose they loose their status as axioms
- >>and become experimental facts.
-
- > I am not sure that the differentiation between an 'axiom' and
- > an 'experimental fact' (say the fact that we have never seen anything
- > have true speed greater than c for example) is very fruitful.
-
- I think it is fruitful, but not quite in the sense Scott is using.
- Axioms live in theories, whereas experimental facts live in the real
- world, or our measurements thereof. The constancy of c is usually
- taken as an axiom of relativity; certainly Einstein treated it that
- way. But it's also an experimental fact, in the sense that there is
- a lot of evidence for it. If it were proven beyond all doubt by some
- sort of experimental omniscience, that wouldn't change its status
- as an axiom of relativity. One could still construct a completely
- different theory with a different set of axioms, though it would
- be wrong as a description of reality.
-
- To speak of "axioms of physics" is to create the wrong impression
- that physics has one unified, unchanging theoretical edifice. Axioms
- of specific theories, on the other hand, surely exist, though which
- theoretical facts are the axioms often depends on whom you talk to.
-
- --
- Matt McIrvin, Cambridge, Massachusetts, USA
-