Mike Rapoport wrote:

I thought that bodies radiated EM energy based on the relative
temperature irrespective of color? Darker bodies *absorbed* more
visible spectrum radiation but there was no difference in
radiating energy. Is this wrong?

Nope, you're right. See www.azsolarcenter.com/design/pas-1.html for an
explanation. One relevant quote from that site:

"The extent to which a material emits thermal energy depends both on
the temperature of the material and nature of its surface. Polished
metal surfaces are poor emitters and poor absorbers of thermal energy."

Maybe not clear from the brief snippet I quoted, but when they talk
about "nature of the material surface" they don't mean color.

Jim Rosinski