|Nov28-12, 09:49 AM||#1|
Origin of IR radiation in living things ?
I've been reading that in a relatively normal environment about 1/2 of human heat loss is due to radiation. Most of this seems to have a wavelength of 10-12 μm.
Could someone here speak to the molecular origin of this? I'm guessing it is mostly from water molecules going from a higher to lower energy state, but can't find any information on the specifics.
thanks in advance,
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|Nov28-12, 11:01 AM||#2|
Some transitions in molecules are involved, but don't forget blackbody radiation - the emitted photons have an energy which corresponds to typical kinetic energies of the moving molecules.
|heat, human, infrared, loss|
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