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Tech Head - The Technology Section
Einstein's Alcove
Cavorite Gets its First Outing
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<blockquote data-quote="spiney" data-source="post: 168202" data-attributes="member: 192438"><p>Well, channel hopper, anyway thanks for originally mentioning Felber otherwise I - and many others - wouldn't have heard of this. And, apologies for my last post above, rather silly and infantile.</p><p></p><p>Yes, you do have to put energy in, and that's precisely why Cavorite is a theoretical impossibility (never mind Newton's 3rd law .....).</p><p></p><p>I don't think there's any "magic technology" that would give us a "star car" (last filling up point, The Oort Cloud!).</p><p></p><p>As far as I know, the only "maybe practical" interstellar propulsion system is the Bussard Ramjet. Because, above a certain speed, interstellar hydrogen becomes both fuel and propellant, and then you don't have to take these with you! That is, if we ever manage to get controlled hydrogen fusion, which we haven't so far.</p><p></p><p>This is a "beautiful concept", all done with magnetic fields, so no moving parts, and no materials to wear out!</p><p></p><p>Accelerating to halfway, then decelerating, it would be possible to reach several nearby stars within one human lifetime (although, thousands of years would pass on earth!).</p><p></p><p>Being the only "within known science" stardrive, this is popular in "realistic" sci fi, one of the best is Heinlein's Time For The Stars, and a "disaster scenario" is Pohl Anderson's Tau Zero.</p><p></p><p>See: <a href="http://en.wikipedia.org/wiki/Bussard_ramjet" target="_blank">http://en.wikipedia.org/wiki/Bussard_ramjet</a> .</p></blockquote><p></p>
[QUOTE="spiney, post: 168202, member: 192438"] Well, channel hopper, anyway thanks for originally mentioning Felber otherwise I - and many others - wouldn't have heard of this. And, apologies for my last post above, rather silly and infantile. Yes, you do have to put energy in, and that's precisely why Cavorite is a theoretical impossibility (never mind Newton's 3rd law .....). I don't think there's any "magic technology" that would give us a "star car" (last filling up point, The Oort Cloud!). As far as I know, the only "maybe practical" interstellar propulsion system is the Bussard Ramjet. Because, above a certain speed, interstellar hydrogen becomes both fuel and propellant, and then you don't have to take these with you! That is, if we ever manage to get controlled hydrogen fusion, which we haven't so far. This is a "beautiful concept", all done with magnetic fields, so no moving parts, and no materials to wear out! Accelerating to halfway, then decelerating, it would be possible to reach several nearby stars within one human lifetime (although, thousands of years would pass on earth!). Being the only "within known science" stardrive, this is popular in "realistic" sci fi, one of the best is Heinlein's Time For The Stars, and a "disaster scenario" is Pohl Anderson's Tau Zero. See: [URL="http://en.wikipedia.org/wiki/Bussard_ramjet"]http://en.wikipedia.org/wiki/Bussard_ramjet[/URL] . [/QUOTE]
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Einstein's Alcove
Cavorite Gets its First Outing
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