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Politics : The Environmentalist Thread

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To: Thomas A Watson who wrote (22351)	7/19/2008 10:20:03 PM
From: maceng2	Read Replies (4) of 36917

Example: 3.9.3 Page 77. ============================================================= "Rahmstorf's reference to the second law of thermodynamics is plainly wrong. The second law is a statement about heat, not about energy. Further more the author introduces an obscure notion of net energy flow. The relevant quantity is the net heat flow" ========================================================== Incorrect reference to "net heat flow". Think about it....heat does not "flow" across empty space. Radiation is radiation. In other words, Rahmstorf's reference is correct. The words of illumination again. =========================================================== Lazaron 08 Aug 2007 at 4:11 pm Heat is the net transfer of energy between two macroscopic systems due to a difference in temperatures. Heat is not a substance (heat is not caloric), heat is not moved or transferred heat is the net transfer of energy. Serway & Beichner, “Physics for Scientists and Engineers” fifth edition: “Heat is defined as the transfer of energy across the boundary of a system due to a temperature difference between the system and its surroundings.” ============================================================

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