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To: techdiver@opal.com
Subject: Re: fog in cave
From: "Bridget Elliot" <ZLBBLE@zo*.up*.ac*.za*>
Organization: University of Port Elizabeth
Date: Tue, 2 Aug 1994 10:25:31 GMT+0200

> For example, when draining compressed gas cylinders, the cylinder 
> gets hot due to the expansion of the gas. I would go with the surge 
> theory that compressing the air causes condensation.

Oooops ! Maybe I should have waited until I had my morning cup of 
coffee. Of course a cylinder cools down quite dramatically when 
drained, and gets warm when filled. Sorry about posting that twaddle.

Cheers

Bridget Elliott                             /\          /\
Department of Zoology                     / /\\    @@  //\ \
University of Port Elizabeth             ///\ \\ (())) //\\ \
Box 1600                                 ////\\ ((***))//\\ \ 
Port Elizabeth                           //    \ ((())/   \\  
South Africa                            /                  \
6000

fax   : +27-41 - 504 2317
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