water, energy (definately not *nix related)

Henry Spencer henry-lqW1N6Cllo0sV2N9l4h3zg at public.gmane.org
Mon Sep 27 17:39:22 UTC 2004


On Mon, 27 Sep 2004, James Knott wrote:
> > Unfortunately, ammonia isn't *much* better than water...
> > Hydrogen is, but it has its own problems.
> 
> Then again, if you *REALLY* want to cool something, it's tough to beat 
> liquid helium.  It's non-toxic too.  ;-)

Alas, while enough liquid helium gets things very cold, it's not actually
a very *good* coolant -- its heat capacity is quite small.  (That's one of
the reasons why making it and keeping it is hard:  it doesn't take much of
a heat leak to boil it.)

                                                          Henry Spencer
                                                       henry-lqW1N6Cllo0sV2N9l4h3zg at public.gmane.org

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