To: Thomas A Watson who wrote (22368 ) 7/20/2008 6:37:51 AM From: maceng2 Read Replies (2) | Respond to What is pointed out is that you cannot parse out the the heat transfer by radiation and then separate it into vectors in some net energy flow. answers.com Sketching the History of Statistical Mechanics and Thermodynamics omega.math.albany.edu :8008/cdocs/summer99/history-stat-mech/stat_m~1.htmTheory of Exchanges does pose some amusing thought experiments. A is put into an evacuated enclosure B , at a lower temperature, then A cools until it reaches the temperature of B . If a body C , cooler then B , is put into B , C warms up till it reaches the temperature of B . It's concluded that radiation falls from B onto C , and therefore also onto A even though A is at the higher temperature. Thus A and C each come into equilibrium at the temperature of B .again, slightly different thought experiment B , one of the bodies, say C , is transferred to a cooler evacuated enclosure D . It loses heat and cools to the temperature of D . Therefore it is radiating heat. But if C , is transferred to a warmer enclosure F then C gains heat and warms up to the temperature of F . i.e. it is absorbing heat . It seems unreasonable that to suppose that C stops radiating when transferred to F ; it is more reasonable to suppose that it goes on radiating but, while cooler then F it absorbs more then it radiates.tsch.de
