RE: Re: Re: gould dies at 60

["Davies, Daniel" <daniel.davies@xxxxxxxxxxxx>]

-----Original Message-----
From: ScottH9999@xxxxxxx [mailto:ScottH9999@xxxxxxx]
Sent: 21 May 2002 18:42
To: pen-l@xxxxxxxxxxxxxxxxxxx
>Subject: [PEN-L:26130] Re: Re: gould dies at 60

>(Thus water after it is heated up gradually,
>suddenly begins to boil.

If you're going to show this book to people who are of a pedantic
disposition, you might want to find a different example.  This isn't true of
water, which gradually approaches boiling point along its boiling curve.
Boiling is the limit of a process whereby the heat lost from evaporation
increases as a liquid is heated; it's the point on the boiling curve at
which the heat loss from evaporation exceeds the heat applied, if I remember
O-level physics right.

The freezing of water as it is gradually cooled is much more like the
discontinuous process you want; supercritical liquids can freeze all in an
instant.  But liquids come to the boil gradually.

dd


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