From: terry@asl.dl.nec.com
Subject: Re: Re: Responses to Dale Bass
Originator: terry@aslss01
Organization: (Speaking only for myself)
Date: Mon, 11 Jan 1993 23:56:12 GMT

In article <9970B5DAE75FA0D881@vms2.uni-c.dk>
Dieter Britz <BRITZ@kemi.aau.dk> writes:

> But the very act of formulating mathematical relationships seems to focus
> the mind, and one tends to reduce the starting premises to a minumum of
> (safe) assumptions. In any case, a beautiful argument will always get to
> the point where you have to provide some numbers. How big is the effect?
> Is it significant?  As I have asked, is 100,000K = 10 eV enough for fusion?

Your 100,000 = 10eV argument is excellent, pointed, and nicely succinct.

By simply granting the key point for the moment and then examining it a
bit more closely, a great deal of quantification work might be saved.
Good intellectual efficiency, I'd say.

Thus I hereby cheerfully defer this (and the 10E6 case) to Dr. Steven Jones.

Dr. Jones?   :)

				Cheers,
				Terry


P.S to Douglas Morrison -- Thanks for posting your excellent summary of the
    bubble chamber issue.  Because I received it as a Cc I never replied,
    but I thought it was an excellent summary of the key points, and also
    doggone interesting item from a purely history-of-science viewpoint.


P.P.S - My understanding from a private email is that the polarization of
    sonoluminescence is dipole.  Interesting.

    The reason for my interest is simply that in my UC proposal (as it now
    exists, having undergone some modifications), the high density in a final
    collapse must by rather simple geometrical arguments lead to some degree
    of organized lateral flow in the surface of the void (assuming that such
    a surface still exists!).  These would take the form of what I've called
    "flow cells" in previous emails, although it's not so much a flow as a
    sort of "folding out" of fluid as it enters into a still-well-organized
    surface.

    The lowest possible flow cell count would be two, with fluid entering
    two "poles" and converging at an "equator."  If you could link the
    rapid longitudinal accelerations to polarized light emission, a dipole
    polarization would be conceivable.

    But that would also imply that higher numbers of fluid cells (three, four
    [tetrahedral], etc., should also be possible.  A single cavitation with
    a sufficiently sharp inner surface would by such a model begin with a
    large number of flow cells that would rapidly merge together into the
    final (pre-rebound) count of some very small number of cells, two being
    the smallest possible.

    If the light emission began prior to the formation of a two-cell, other
    (and probably fainter) polarization geometries might exist on top of
    the dipole signal.  I would judge the identification of such three,
    four, or more pole geometries in the luminescence to be a strong
    indication that the collapse has remain well-organized down to very
    small, near-molecular dimensions.

    And as always, please note that none of this may have any validity
    whatsoever, since turbulence could set in long before the such low-cell-
    count geometries could ever form.  (If things get small enough and remain
    "sharp" enough, though, I stick to my point that simple geometry will
    force the formation of identificable flow cell patterns with simple
    geometrical relationships.)

				Cheers,
				Terry Bollinger

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