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- Path: sparky!uunet!psinntp!kepler1!andrew
- From: andrew@rentec.com (Andrew Mullhaupt)
- Newsgroups: sci.math
- Subject: Re: Category theory funded by DOD?
- Message-ID: <1170@kepler1.rentec.com>
- Date: 12 Aug 92 13:59:12 GMT
- References: <8AUG199218504153@zeus.tamu.edu> <1165@kepler1.rentec.com> <1992Aug11.160727.27151@galois.mit.edu>
- Organization: Renaissance Technologies Corp., Setauket, NY.
- Lines: 28
-
- In article <1992Aug11.160727.27151@galois.mit.edu> jbaez@nevanlinna.mit.edu (John C. Baez) writes:
- >In article <1165@kepler1.rentec.com> andrew@rentec.com (Andrew Mullhaupt) writes:
- >>One of the ones I expect to be answered sooner rather than later is the
- >>explanation of the inertial range of fluid turbulence.
- >
- >What's that?
-
- The problem is to explain the observed scaling of the energy in a turbulent
- fluid with wavenumber. Heisenberg's scaling law governs small scales only.
- There is (as one would expect) a vast literature on this subject, and there
- are many possible explanations. (C. E. Leith pointed out that there were at
- one point, dozens of different sets of assumptions which arrived at the
- correct scaling law, but many of them were mutually exclusive...). A successful
- explanation would not only reproduce Kolmogorov's scaling, but would determine
- this behavior from something resembling first principles. The Yahot-Orszag
- theory is the latest one I know of, but there is a general feeling that this
- kind of explanation (renormalization group) is not the answer.
-
- >>Now we hear John Baez trying to drum up interest in the subject for the sake
- >>of physics. I don't know whether to laugh or cry.
-
- >A cynical snicker will suffice.
-
- I have a better idea. If you're seriously interested in getting category theory
- to do a job in physics, I can suggest some people you can try.
-
- Later,
- Andrew Mullhaupt
-