> Doesn't clothing effect the emissivity of a person? I would think that a > moderately sized pet (medium size dog) with black fur might emit more IR > than a person clothed in white, As an aside, black objects are better thermal radiation (black body) emitters than white objects. This is a common misconception because black objects are also better thermal radiation absorbers. ***************************************************************** Olin Lathrop, embedded systems consultant in Devens Massachusetts (978) 772-3129, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics