Alain wrote:

>> I think Cray used propylene glycol (anti freeze) at one point,
>> but I might be mistaken.
>>
> It's a good termal medium. Easily available, cheap, good termal 
> capacity, non-corosive, non-conductive, relatively low dielectric 
> constant to reduce parasitic capacitance. It's very plausible.

I'm a geek, but I am constantly astonished by the other people round here...

(What the heck is a dielectric constant when it's at home??)

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