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Chinese Say They're Building 'Impossible' Space Drive
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Chinese Say They're Building 'Impossible' Space Drive
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Chinese Say They're Building 'Impossible' Space Drive
Is it really "impossible"? Although I'd like to see a real Space Drive (tm) as much as anyone else, this looks to be yet another attempt to get net acceleration by moving stuff(*) around really fast in a complicated way. IOW, don't bet a lot of money on it. And, to answer the question, "Yes, it probably is impossible." (*) Matter, photons, etc. |
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Chinese Say They're Building 'Impossible' Space Drive
wrote: See: http://blog.wired.com/defense/2008/0...e-buildin.html Is it really "impossible"? There's a good chance that China invented the Emdrive first, as with most of everything else you and I can think of. Those very little Dzopa/Dropa Chinese folks most likely didn't get here by way of sheer happenstance. ~ Brad Guth Brad_Guth Brad.Guth BradGuth BG |
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Chinese Say They're Building 'Impossible' Space Drive
On 24 Sep, 23:38, Allen Thomson wrote:
Is it really "impossible"? Although I'd like to see a real Space Drive (tm) as much as anyone else, this looks to be yet another attempt to get net acceleration by moving stuff(*) around really fast in a complicated way. IOW, don't bet a lot of money on it. And, to answer the question, "Yes, it probably is impossible." (*) Matter, photons, etc. No don't bet on it! It seems to me very like an alternative to ion propulsion. The problem is getting a source of microwaves. One of my main comments on William Mook's proposals for SSP (at GEO) is that launches should only be to LEO. The rest of the way should be done by some form of ion drive. This would seem to give higher thrust than ion drive, lower specific impulse (higher though than conventional rockets) and require a larger amount of power during operation. - Ian Parker |
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Chinese Say They're Building 'Impossible' Space Drive
On Wed, 24 Sep 2008 09:19:29 -0700 (PDT), wrote:
Is it really "impossible"? ....No, it's "impossibre". OM -- ]=====================================[ ] OMBlog - http://www.io.com/~o_m/omworld [ ] Let's face it: Sometimes you *need* [ ] an obnoxious opinion in your day! [ ]=====================================[ |
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Chinese Say They're Building 'Impossible' Space Drive
In article
, wrote: See: http://blog.wired.com/defense/2008/0...e-buildin.html Is it really "impossible"? You can see how it works in http://emdrive.com/principle.html It works the same way as storing compressed gas in a tank shaped like a truncated cone. On one end is, e.g. a 20 cm diameter endcap, on the other is a 10 cm endcap. The areas are different by 235 cm^2, so if you pressurize the tank to 10 atmospheres (1e6 N/m^2) you will get a difference in force between the two endcaps of 23kN, or a couple of tons-force. That's why pressurized gas tanks are precisely manufactured cylinders instead of cones: otherwise there would be too much danger of one of them coming loose and flying across the landscape, picking up speed with each passing second until it either hits something or leaves the atmosphere, accelerating forever through space until it passes lightspeed. -- David M. Palmer (formerly @clark.net, @ematic.com) |
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Chinese Say They're Building 'Impossible' Space Drive
On Sep 27, 12:05 pm, "David M. Palmer" wrote:
In article , wrote: See: http://blog.wired.com/defense/2008/0...e-buildin.html Is it really "impossible"? You can see how it works inhttp://emdrive.com/principle.html It works the same way as storing compressed gas in a tank shaped like a truncated cone. On one end is, e.g. a 20 cm diameter endcap, on the other is a 10 cm endcap. The areas are different by 235 cm^2, so if you pressurize the tank to 10 atmospheres (1e6 N/m^2) you will get a difference in force between the two endcaps of 23kN, or a couple of tons-force. That's why pressurized gas tanks are precisely manufactured cylinders instead of cones: otherwise there would be too much danger of one of them coming loose and flying across the landscape, picking up speed with each passing second until it either hits something or leaves the atmosphere, accelerating forever through space until it passes lightspeed. -- David M. Palmer (formerly @clark.net, @ematic.com) The EM drive should function, and perhaps better yet if the waveguide cone was made chuck full of radon gas, making it a combination EMION drive with a 1650 year half-life as long as the cache of radium was sufficient to start with. ~ BG |
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Chinese Say They're Building 'Impossible' Space Drive
Video: 'Impossible' Space Drive In Action?
See: http://blog.wired.com/defense/2008/1...impossibl.html |
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