Terry, and/or Harry, and/or others who may remember 'compreture' ... >> Rossi's reaction might be boiling water by >> removing cold, rather than by adding heat.
> OK, I can see this is a waste of time. This comes up on Vortex from time to time and it is far from a waste of time. Formerly, Frank Grimer introduced the brilliant concept of 'compreture' - a feature of physical reality in which there is no true basement or ceiling (of the temperature/pressure continuum, when we move to a lower geometry or cross-dimension). To make a long story short, we be on the verge of now finding a more cogent place for Grimer's insight - in Nanomagnetism. "Coldness" may not be the way to boil water, on its own - but it may be a way to capture Dirac radiation from the negative sea at -6.8 eV ! It does not matter if the sign is negative or positive, so perhaps Steorn will usurp this one, as well :) I put a smiley there to alert people like Mary, who seldom carefully read the posts of others before spouting out a new dose of ignorance - that yes, we are all aware that the photon is its own antiparticle. A photon and an anti-photon (or negative photon) - are exactly the same thing. A negative photon from reciprocal space would act just like a regular photon in 3-space. This is how water is boiled with "coldness". This information could be more accurately worded, if this were going to become an integral part of Nanomagnetism and will be in the future - but the underlying sentiment is absolutely correct based on Dirac's theory. Specifically, since all heat engines work on the differential between the hot and cold side - with the zero Kelvin set as an (arbitrary) bottom, they are artificially constrained if there is no absolute bottom, at all scales. The bottom of coldness, so to speak, may not be the a real bottom after all, once we reach the nanoscale. Helsinki University of Technology has a specialty Lab investigating the low end - and the coincidental thing is that this does relate to directly to Nanomagnetism - mentioned yesterday. Of course, they are not yet aware of the cross-connection. http://ltl.tkk.fi/triennial/positive.html This Lab may be just scratching the surface of the Dirac sea of Negative energy, and the following quote from them - will be not a limit, but instead the threshold to opening QM door to another dimension (a version of Dirac's reciprocal space). "A rather unique property of nuclear magnets is the possibility of producing negative spin temperatures. This does not violate the laws of thermodynamics, i.e. inaccessibility of the absolute zero, because the negative side of the temperature scale is reached by a rapid magnetic field reversal. During this process the spin temperature is strictly speaking ill defined, but can be thought of evolving via infinity. In a sense, negative absolute temperatures are not colder than zero but actually hotter than infinite temperature!" Yes, these guys are "hedging" a bit at this point, and do not want to sound too radical, given the implications of what should be startling results; but there is much more out there wrt the possibility of achieving gain via "coldness", so to speak. UV light from Dirac's negative sea, at -6.8 eV, may not be "hotter than infinite temperature" but it will easily boil water. Jones
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