tag:blogger.com,1999:blog-12339127.post6972400812283937660..comments2024-01-13T01:17:55.325-06:00Comments on Tom Nelson: Tomhttp://www.blogger.com/profile/08119241500221931600noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-12339127.post-2059944862921679432013-01-20T21:11:50.451-06:002013-01-20T21:11:50.451-06:00Dr Roy Spencer continues not to acknowledge his fu...<br /><b>Dr Roy Spencer</b> continues not to acknowledge his fundamental error in assuming conduction (diffusion) in a vertical plane causes isothermal conditions. It does not. It creates isentropic conditions, and thus a thermal gradient in a gravitational field.<br /> <br /><br /><b>The Second Law of Thermodynamics</b> states (from <a href="http://en.wikipedia.org/wiki/Laws_of_thermodynamics" rel="nofollow">Wikipedia</a>) <br /><br /><i>An isolated system, if not already in its state of thermodynamic equilibrium, spontaneously evolves towards it. Thermodynamic equilibrium has the greatest entropy amongst the states accessible to the system.</i><br /><br />Hence the Second Law of Thermodynamics confirms that, at equilibrium, an isentropic state will develop, simply because that is the state which has the most entropy of all states "accessible to the system."<br /><br />This is why diffusion creates equal temperatures in a horizontal plane, but also unequal temperatures in a vertical plane. Isentropic conditions apply in each plane in equilibrium, but in the vertical plane potential energy varies, and thus kinetic energy does also so that PE+KE=constant..<br /><br /><b>Hence an autonomous thermal gradient in a gravitational field is a direct corollary of the Second Law of Thermodynamics, and so the GHE is debunked by standard physics.</b><br /><br />See the comments starting here ...<br /><br />http://www.drroyspencer.com/2013/01/misunderstood-basic-concepts-and-the-greenhouse-effect/#comment-69064<br /><br /><b>Roy Spencer's error will be very widely publicised within 2 or 3 weeks in an article likely to be read by tens of thousands.</b><br /> <br />Doug Cottonhttps://www.blogger.com/profile/08564342660783793003noreply@blogger.com