Mark Sims wrote: > Remember that heat flow is proportional to the FOURTH power of the > temperature difference. Insulation is generally a linear function. The > combination makes thermal stabilization over even small ambient temperature > ranges rather problematic. > > >
Nonsense. The radiative transfer between 2 bodies at different temperatures is proportional to the difference between the 4th powers of their absolute temperatures. However this requires a medium between the 2 bodies that is transparent to the wavelenghts of interest and emissivity that is constant with wavelength. In a practical situation convection and conduction are also significant. Conductive heat flow is proportional to the temperature difference between the 2 bodies. Bruce _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
