Actually, the fluid referenced in the URL (Fluorinert) is used to cool some Crays. It is only manufactured by one maker, and only a few systems use it. There are actual liquid cooled Cray parts in the NSA museum near Ft Meade. Non-operational, of course, just like this post...

James H. Smith II  NNCDS NNCSE
Systems Engineer
The Presidio Corporation

-----Original Message-----
From: Charles Sprickman [mailto:spork@inch.com]
Sent: Thursday, August 30, 2001 3:45 PM
To: Alex Rubenstein
Cc: Daniel Senie; nanog@merit.edu
Subject: Re: What is the limit? (was RE: multi-homing fixes)

On Wed, 29 Aug 2001, Alex Rubenstein wrote:

> I recall something about liquid (something, could be nitrogen, or perhaps
> even mercury) that was chilled; PC Boards were then submersed in the
> liquid to keep cool.
>
> Maybe on Crays?

Maybe in someone's garage? :)

http://www.octools.com/articles/submersion/submersion12.html

C

> -- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben --
> --    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --
>
>