I dunno, have you ever been around glass blowing? It gets pretty bright For example: https://www.youtube.com/watch?v=O1xb48Y6EdA
I think these are temperatures around 1320c http://en.wikipedia.org/wiki/Glassblowing On Wed, Dec 10, 2014 at 10:01 AM, Finlay MacNab <finlaymac...@hotmail.com> wrote: > > > ------------------------------ > > *Hard to look at with the naked eye? I don't recall anything in the > lugano report about the ecat being hard to look at.* > > I am not sure this is correct. > > An examination of black body radiative power versus temperature shows that > below 3000 degrees kelvin the emission from a hot body is diffuse and the > bulk of the energy is at longer wavelengths. > https://www.e-education.psu.edu/astro801/content/l3_p5.html > > A 1700K radiator (1400 Celsius) has a peak emission intensity of around > 1.7microns in the infrared. > > The wikipedia page on infra-red heaters has a picture of quartz heating > elements that operate at 1500C. The text accompanying the picture implies > that the lamp is radiating 100W/inch or 780 W over 20cm (the length of the > Rossi reactor). http://en.wikipedia.org/wiki/Infrared_heater > > Based on this information, I don't think the reactor would have to appear > very bright to the naked eye. > > Finlay >
