On Thu, May 04, 2006 at 08:04:40AM -0700, John M wrote: > > Russell, > thanks for your fime and effort to reply. 3 things: > > 1. You picked my Hawkng typo, I have many more. I do > recall that post and it gives me while writing, the > subconscious vacillation: which version is the right > and which the left? Very rarely do I wright his name.
Well I was having a little "dig" at you - not being at all serious about it... > > 2. You use usable (used) physics views in a topic way > away from classical physics views, puting a systems > talk into space-time measuring with a morphology I > cannot (don't want to) follow in this thread. > This is the usual definition and context of the term "closed system". Of course the term closed means many other things: a closed set for instance, or "closure" in formal systems (which means the formal system is complete). But I always thought we were talking about the thermodynamic meaning. > 3. In your last par you said it: "isolated from the > rest of the unkiverse" exactly the singularity I DO > identify with Tom's description of a "closed system". > But I'm not sure a singularity is a closed system (the thermodynamics meaning anyway). > And 2Qs: > Yours: > > What is an unknowable closed system?< > If nothing (including information) "comes out" it must > be pretty "unknowable". In that ballgame ou suppose: > it turns "open" from "c;osed" and then again "closed", > I assume it disappears from our observation. I see no > indication that it keeps the same coordinates when > dissappeared as we found kit at when it was "open". > The coordunates you want to find it at dissipate as > well. I don't see why this should happen - perhaps it happens sometimes, but not to classical thermodynamics systems. > Not to mention the changes "or" world ujndergoes to... > Mine: > RSt:> Usually because it doesn't move :) Consider > > something inside a shielded container in a > vacuum...< > How is "move" identified in connection with (my > version of) closed system (singularity) with no > interconnection in space lor time of OUR habiturl > system? Assigning coordinates to "no-info" sounds > funny. And the shielded vacuum container is Physics > 101. > > I am on a different track... > > Regards > > John M > I suspect I don't follow you at all... -- ---------------------------------------------------------------------------- A/Prof Russell Standish Phone 8308 3119 (mobile) Mathematics 0425 253119 (") UNSW SYDNEY 2052 [EMAIL PROTECTED] Australia http://parallel.hpc.unsw.edu.au/rks International prefix +612, Interstate prefix 02 ---------------------------------------------------------------------------- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/everything-list -~----------~----~----~----~------~----~------~--~---