From: "Jed Rothwell" <[email protected]> Sent: Monday, October 27, 2014 12:08:08 PM
> Axil Axil < [email protected] > wrote: >> Nobody really knows how the E-Cat radiates energy. > It radiates heat energy according to the Stefan-Boltzmann law, like any other > object. The source of the heat is irrelevant. All hot objects radiate heat > the same way ... That's simply not true. The Stefan-Bolzmann law is an approximation. (The single-value emissivity used here is an average over both the wavelength and the viewing angle). What you see (visually, or with an IR detector -- as explained in the Williamson/MFMP interview, and in the Marana paper) is a function of reflectance, transmissivity and emissivity, all of which vary by wavelength and by temperature -- and Alumina is particularly variable and problematic with respect to all of these. You need to know the values of all of these, and then integrate the Planck Formula over the entire spectrum. IF the emissivity is constant then this integral gives the same value as the Stefan-Bolzmann law. If not, it doesn't. I've done the calculations : report(s) coming soon. > and they all turn the same incandescent color at a given temperature. I'm not sure that is true either, though I haven't found a specific refutation. It would be true ONLY if their emissivity is constant over the visible spectrum. (Marana's example doesn't cover the visible range).
