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Tech Head - The Technology Section
Einstein's Alcove
devil's advocate: replacator ?
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<blockquote data-quote="spiney" data-source="post: 182717" data-attributes="member: 192438"><p>As I understand it, this particular section is for discussion of science facts, including far-out ideas, which might be sci fi now, but could possibly "become" factual. However, that doesn't include the self contradictory or physically impossible.</p><p></p><p>In whatever "version" you wish to consider it (Newton, Einstein, even quantum versions), gravity is a conservative field, and Caovrite is just impossible! "Shielding" something from gravity would need massive energy input, at least equivalent to the change in potential involved, probably a lot greater! It's "conceivable" that one day we might invent a means to do this - possibly based on physical principles as yet unknown - and requiring much less energy expenditure than rockets. But at present, the "space elevator" is the only such idea around.</p><p></p><p>There's no way round this limitation (outside sci fi and fantasy!). The net total entropy of the universe must always increase (2nd law of thermodynamics). Matter cannot "spontaneously" become more organised (despite statistical mechanics, so called zero point energy, etc)! If that were possible, as I've pointed out before, then nothing could ever exist!</p><p></p><p>There's no use in trying to discuss the subject with with anyone who doesn't understand these facts. Sorry.</p><p></p><p>See: <a href="http://www.phact.org/e/z/noperpet.txt" target="_blank">www.phact.org/e/z/noperpet.txt</a> .</p><p></p><p>also: <a href="http://en.wikipedia.org/wiki/Second_law_of_thermodynamics" target="_blank">http://en.wikipedia.org/wiki/Second_law_of_thermodynamics</a> .</p><p></p><p>also: <a href="http://en.wikipedia.org/wiki/Entropy" target="_blank">http://en.wikipedia.org/wiki/Entropy</a> .</p><p></p><p>also: <a href="http://farside.ph.utexas.edu/teaching/301/lectures/node59.html" target="_blank">http://farside.ph.utexas.edu/teaching/301/lectures/node59.html</a> .</p><p></p><p>..... and so on ......</p><p></p><p>I'm not "against" anything, time and ftl travel etc might be possible, but nothing self-contradictory can possibly be. Because it's just nonsense.</p></blockquote><p></p>
[QUOTE="spiney, post: 182717, member: 192438"] As I understand it, this particular section is for discussion of science facts, including far-out ideas, which might be sci fi now, but could possibly "become" factual. However, that doesn't include the self contradictory or physically impossible. In whatever "version" you wish to consider it (Newton, Einstein, even quantum versions), gravity is a conservative field, and Caovrite is just impossible! "Shielding" something from gravity would need massive energy input, at least equivalent to the change in potential involved, probably a lot greater! It's "conceivable" that one day we might invent a means to do this - possibly based on physical principles as yet unknown - and requiring much less energy expenditure than rockets. But at present, the "space elevator" is the only such idea around. There's no way round this limitation (outside sci fi and fantasy!). The net total entropy of the universe must always increase (2nd law of thermodynamics). Matter cannot "spontaneously" become more organised (despite statistical mechanics, so called zero point energy, etc)! If that were possible, as I've pointed out before, then nothing could ever exist! There's no use in trying to discuss the subject with with anyone who doesn't understand these facts. Sorry. See: [URL="http://www.phact.org/e/z/noperpet.txt"]www.phact.org/e/z/noperpet.txt[/URL] . also: [URL="http://en.wikipedia.org/wiki/Second_law_of_thermodynamics"]http://en.wikipedia.org/wiki/Second_law_of_thermodynamics[/URL] . also: [URL="http://en.wikipedia.org/wiki/Entropy"]http://en.wikipedia.org/wiki/Entropy[/URL] . also: [URL="http://farside.ph.utexas.edu/teaching/301/lectures/node59.html"]http://farside.ph.utexas.edu/teaching/301/lectures/node59.html[/URL] . ..... and so on ...... I'm not "against" anything, time and ftl travel etc might be possible, but nothing self-contradictory can possibly be. Because it's just nonsense. [/QUOTE]
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Einstein's Alcove
devil's advocate: replacator ?
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