In reply to OrionWorks's message of Wed, 13 Sep 2006 21:20:59 -0500: Hi, [snip] >Hi Colin, > >Regarding this newfangled EM Drive, some things don't add up from my point of >view. In one article it was theorized by the researchers that the "force" only >works at maximum efficiency if the operating EMDrive is stationary, that is, >when it isn't moving. They went on to speculate that the force emanating from >the EMDrive weakens as velocity accumulates.
I think the most accurate statement that I can recollect was that it draws power as it accelerates. This power comes from that resonating in the chamber, which of course reduces the force. This shouldn't really come as a surprise. They aren't claiming a free energy device. All it really means is that energy needs to be added at the same rate at which it is converted into kinetic/gravitational energy IMO. So one needs to have a MW reactor on board. So what? Look at it from this point of view:- A certain amount of power is required just to counteract the force of gravity, and cover losses. If more power is added, then the lifting force increases, and the craft rises consuming any excess supplied. Regards, Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.
