Many different types of Luminescence are listed here. http://en.wikipedia.org/wiki/Luminescence
quote "Luminescence is emission of light by a substance not resulting from heat; it is thus a form of cold body radiation. It can be caused by chemical reactions, electrical energy, subatomic motions, or stress on a crystal. This distinguishes luminescence fromincandescence, which is light emitted by a substance as a result of heating. Historically, radioactivity was thought of as a form of "radio-luminescence", although it is today considered to be separate since it involves more than electromagnetic radiation. The term 'luminescence' was introduced in 1888 by Eilhard Wiedemann" On Mon, Oct 20, 2014 at 1:16 AM, H Veeder <hveeder...@gmail.com> wrote: > 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 >> >> >> >> >> >
