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A comment on The EmDrive just won't die. Parent comment

Re:The EmDrive just won't die by throwaway316943 on Sunday September 13, 2020 @11:19PM (#24466420)
Simple answer could be that it tops out at a certain speed for the energy input. 1kw might only allow acceleration up to say 1m/s and no further.
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Re:The EmDrive just won't die by wcoenen on Monday September 14, 2020 @04:12PM (#24474563)
Note that we're already moving around the sun at 30km/s. Or at 230km/s around the galactic center. Or at 368 km/s relative to the CMB rest frame...
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