> > "Maxwells' demon, live at the theatre."  I've got tickets!
> >
> > Tony
> >
> > PS - 'ere Gov, I've got some spare, going cheap.
> 
> I imagine that you are aware of the Wiebelrohr (sp?) aka 
> vortex tube aka Hilsche tube aka ... which I MUST make a 
> working one of some year soon. This is a real world 
> implementation of the precise demon that Maxwell was talking 
> about and he would have uttered Homer Simpson like noises 
> (aka DOH!!!) had anyone pointed out the retrospectively 
> obvious concept at the time he was demonising it.
> 
> I also reckon I can stage them, which is said to be 
> "impossible" but that's another story.


Yes, you're right!  I've seen vortex tubes in action, although heard might
be a better word.  "Doh" may be uttered, but unlikely to be noticed over the
dim.  Perfect for outdoor living though, cool your beer at one end, fry the
sausages at the other.

Most people when mentioning Maxwells demon (i.e. Keelynet folk) see it more
like osmosis.  See, it separates things without using any energy.  Magic!
Just like the vortex tube, if you ignore the compressor (and you need a big
one).

Tony

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