The surface temperature of the Sun is effectively several millions of degrees. The atmosphere of the Sun is heated by magnetic fields from deep within the core of the Sun. Yes, the surface of the Sun is cool, but the roiling Corona is the plasma that produces the bright white light that we see here on earth.
On Sun, Oct 19, 2014 at 7:27 PM, H Veeder <[email protected]> wrote: > > > On Sun, Oct 19, 2014 at 5:49 PM, Jed Rothwell <[email protected]> > wrote: > >> H Veeder <[email protected]> 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 > > > > >
