Lou, I have ben positing this with respect to DCE, the change in casimir geometry and therefore the restriction of virtual particle sizes is just such a Maxwellian demon. Powered by change in geometry it creates boundaries that react asymmetrically to atoms vs molecules. It doesn't sort hot from cold but it sets the stage for discounting the disassociation level of molecules while ignoring atoms. If the area is heated such that the molecules approach disassociation this asymmetrical opposition to molecules will discount the threshold opening the door to over unity at the cost of geometry. I am convinced more heat can be released upon reassociation then the discounted value achieved by geometry and random motion of gas. You are essentially putting the random motion of gas in opposition to these geometrical boundaries. Fran
-----Original Message----- From: pagnu...@htdconnect.com [mailto:pagnu...@htdconnect.com] Sent: Thursday, December 05, 2013 11:53 PM To: vortex-l@eskimo.com Subject: EXTERNAL: [Vo]:More versatile Maxwell's demons Those interested in thermodynamics may find the following worthwhile: Some recent papers showing that Maxwell's demon may not require energy - "Single-reservoir heat engine: Controlling the spin" http://fqmt.fzu.cz/13/pdfabstracts/605_1f.pdf "Beyond Landauer Erasure" http://www.mdpi.com/1099-4300/15/11/4956 The latter is part of the journal 'Entropy' - Special Issue "Maxwell's Demon 2013" http://www.mdpi.com/journal/entropy/special_issues/maxwells_demon2013 The following paper shows that computation needs no energy - if reversible. "The Connection between Reversibility and Heat Generation" http://people.ccmr.cornell.edu/~clh/p562/TPH/Bohn_TP.pdf Whether a spin (or other conserved quantity) reservoir can be created (or discovered) for less than the thermodynamic energy it returns in a novel engine is an intriguing question - and, also whether such engines can be scaled to macroscopic size. -- Lou Pagnucco