:: You can calculate the temperature of a black body ( such as a " black hole " ) by its Blackbody radiation.
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:: : OK, thanks, and I should have seen that-of course there is so little blackbody radiation at 350K that conduction would dominate.
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However, Debye's approach failed to give the correct formula for the energy fluctuations of blackbody radiation, which were derived by Einstein in 1909.
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This is because it rests mainly on a universality character of thermodynamic equilibrium, that it has the universal property of producing blackbody radiation.
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Second, unless they're cooled to near absolute zero, bullets emit blackbody radiation which leads to talk ) 08 : 26, 19 February 2013 ( UTC)
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They also considered the more relevant problem of maximizing the power output for a stack being illuminated from all directions by 6000 K blackbody radiation.
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The only things left were blackbody radiation and the nature of light, but it was thought those things would be solved soon under classical physics.
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In general, the brightness temperature is a function of \ nu, and only in the case of blackbody radiation it is the same at all frequencies.
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These are generally related to radiating terms like blackbody radiation, and conduction terms, where the physical interaction with the surrounding carries energy out of the plasma.
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Modern theory have proposed a variety of mechanisms for cooling other than blackbody radiation, including nuclear decay heating and latent heat of fusion from liquid-to-solid crystallization.