Other examples of light emitting bodies which do not follow the incandascent temperature rule are phosphorescent and fluorescent bodies.
http://en.wikipedia.org/wiki/Phosphorescence http://en.wikipedia.org/wiki/Fluorescence Harry On Sun, Oct 19, 2014 at 7:27 PM, H Veeder <hveeder...@gmail.com> wrote: > > > On Sun, Oct 19, 2014 at 5:49 PM, Jed Rothwell <jedrothw...@gmail.com> > wrote: > >> H Veeder <hveeder...@gmail.com> wrote: >> >> >>> Consider the difference between the sun at noon and the sun at >>> dawn/dusk. The interior of the HotCat glows white but from the outside it >>> glows red like a sunrise because it is shinning through an atmosphere of >>> alumina. >>> >> >> It does not work that way. If the outside surface temperature really is >> 1400 deg C, then the outside surface material should be incandescent white. >> It does not matter what the inside temperature is. All materials glow with >> the same incandescent color at a given temperature. That is what the >> textbooks claim. >> >> I doubt any light is shining through the alumina, but even if it is, the >> light from incandescence of the outside alumina material itself should be >> white. >> >> - Jed >> >> > This is true for an incandescent body, but remember the reactor may not > be an incandescent body. An incandescent body passively heats itself by > receiving energy from an external energy source. e.g. clay pot in a hot > kiln or a resistor with current flowing throw it. On the other hand the > Sun actively heats itself, but if it is identified as a white incandescent > body then its surface temperature will be underestimated by 4600C (6000C - > 1400C). Similarly, if the HotCat actively heats itself but it is identified > with a red incandescent body then its surface temperature will be > underestimated. > > The Stephan-Blotzman law is valuable because it is agnostic on the issue > of how a body comes to have a surface temperature. It is not a relationship > between input power and output power. It is a relationship between the > surface temperature and output power. > > Attaching the label "Incandescent" to a body comes with an assumption > about the underlying dynamics which bring about a body's temperature. The > presumption of incandescence has probably been true of most investigations > of LENR/CF heat anomalies but this new report shows it is an inaccurate > assumption. > > Harry > > > > >
