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"We think that is because that like any ac electric induction motor, this device has to load down its input energy/power source as it is generating thrusting work. Which brings up another point. That being all the calculated Q-Factors given in the Chinese papers, unless otherwise stated, is the very idealized unloaded Q-factors that implies that no energy is being extracted from the resonant cavity."

I was thinking about the topic of the light being reflected in the cavity or Q. As light information doesn't angularly rotate when the frustum is rotated then any modes inside will have to be attenuated before a new mode in the new frustum angular orientation can form. There should be some resistance to angular rotation of a cavity. As a result rotating a resonating cavity should decrease the Q, I would imagine.I was also thinking about the post shells linked earlier: http://forum.nasaspaceflight.com/index.php?topic=39004.msg1482880#msg1482880 message below the one linked by Shells.One thought was that a force induced on the cavity alone (if the cavity doesn't accelerate) might not reduce the Q of the light inside (absorption of energy) unless the cavity was some how exerting a force on some unknown propellant in which case we then have some force exerted over a distance on some hidden propellant, F.dx = Energy .On the other hand if we assume propellant-less then maybe the Q won't dip unless "the cavity it self accelerates" (no propellant) in which case then we have F.dx = E being absorbed from energy in the cavity. It is hard for me to imagine there there isn't some form of hidden propellant, if it works.Due to the nature of light attenuation from rotating a cavity (mentioned at the top) [beware rotational experiments] I would think the decreased Q might be confused with the cavity acting on a propellant or pushing it self. The rotational experiments may, or may not, have to take into account the resistance of the cavity to angular rotation, depending on its magnitude. (I would imagine rotating the cavity might increase the reflected power, where as energy absorption by a hidden propellant would not.)Funny you mention the X-Files show, as a friend was telling me about this. I haven't had a chance to see it, and not sure I will get to, but I found it interesting. It amazes me all the news media we have and how fast ideas circulate. With Google translate were not even limited to our own language anymore.