>> >> So far, yes. >> > >> > And not likely to change anytime soon :) >> >> One sure-tell sign of bad science is a prediction of the >> future. Usually not much more than an attempt at marketing >> when it happens. >> >> Gerhard > > > "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. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist