windshield fluid sprayer

[Steve Marinello]

Actually...

I believe that, within a particular range of temps, the greater delta T has
the heat transfer rate being higher so that the hot water will freeze
faster....but that's simplifyig it.  I think it also has to do with the
strange and wonderful properties of water and how fast it will enter a
particular crystalline form from a particular starting temp at a given rate
of heat transfer/loss.

I ran into this somewhere way back when in the '70's as an undergrad at
Stanford.  But lots of gray matter has died since then, so my memories could
be really full of it.

Steve

----- Original Message -----
From: "Bob" <mx at snet.net>
To: "Phil Payne" <quattro at isham-research.com>
Cc: <duane at zk3.dec.com>; "Quattro List" <quattro at audifans.com>
Sent: Thursday, November 29, 2001 3:56 PM
Subject: Re: windshield fluid sprayer


> Im hoping the results are universal (no american HS for me, good guess
though...)
> I think resident expert Mr. Meyers said it best:
>
> --
> Bullpucky, Phil.  Absolute nonsense.  The colder sample freezes
> first.  There is simply no way around thermodynamics.  The hot sample must
> first lose heat to reach the starting temperature of the colder
> sample.  This takes time during which the colder sample has reached a
lower
> temperature and/or has started already to freeze.
>
>
>
>
>
> Phil Payne wrote:
>
> > *This message was transferred with a trial version of CommuniGate(tm)
Pro*
> > > WHOA! What? Was I asleep in high school?  Here on planet earth its a
little different...
> >
> > No, you went to an _American_ high school - where they teach how they
think things should be, not how they are.
> >
> > Do a Google search on 'Mpemba'.
> >
> > --
> >   Phil Payne
> >   http://www.isham-research.com/quattro
> >   +44 7785 302 803
> >   +49 173 6242039
>
>


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