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<blockquote data-quote="lgburton" data-source="post: 2345158" data-attributes="member: 30653">however, if we're going to play with the laws of thermodynamics, then EVERYTHING gets cold and becomes a &quot;simple rock&quot; eventually. entropy is fun, isn't it?now, is your thought experiment wrong? nope, dead on. but how is it relavent to the point? consider that the moon is not the only thing keeping the earth hot, and the tidal stresses that it does exert are not enough to cause excessive stress (such as the above mentioned case of io). you say &quot;a huge excess of radioactives,&quot; but what does that really mean? how much is a huge excess? so, another thought experiment might be worthwhile:consider two spheres, one larger, one smaller, of similar composition.how does a moon effect each body? if each body were given a moon that were exactly proportional (say 1/10 of the mass of the body in question), how would that effect the rate of cooling? would they be similarly proportional?so, i guess my question for you is: what is the point you are trying to prove? having gone through your posts, i'm not sure what hypothesis you are forwarding. are you saying that a moon or other large tidal-stress causing mass must be affecting a planet for it to have volcanos? olympus mons not withstanding, of course... (or pavonious, or any of the other volcanos of that particular bulge, since they were most likely caused by the great martian northern hemisphere impact.)</blockquote>

[QUOTE="lgburton, post: 2345158, member: 30653"] however, if we're going to play with the laws of thermodynamics, then EVERYTHING gets cold and becomes a "simple rock" eventually. entropy is fun, isn't it? now, is your thought experiment wrong? nope, dead on. but how is it relavent to the point? consider that the moon is not the only thing keeping the earth hot, and the tidal stresses that it does exert are not enough to cause excessive stress (such as the above mentioned case of io). you say "a huge excess of radioactives," but what does that really mean? how much is a huge excess? so, another thought experiment might be worthwhile: consider two spheres, one larger, one smaller, of similar composition. how does a moon effect each body? if each body were given a moon that were exactly proportional (say 1/10 of the mass of the body in question), how would that effect the rate of cooling? would they be similarly proportional? so, i guess my question for you is: what is the point you are trying to prove? having gone through your posts, i'm not sure what hypothesis you are forwarding. are you saying that a moon or other large tidal-stress causing mass must be affecting a planet for it to have volcanos? olympus mons not withstanding, of course... (or pavonious, or any of the other volcanos of that particular bulge, since they were most likely caused by the great martian northern hemisphere impact.) [/QUOTE]

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