Oh, the irony! Happening right on a forum where people have intellectual debates and whine about quote mining, you went ahead and quote-mined me.
It was not a quote mine. Your statement suggested that you had an impression of how momentum was conserved. Here is the entire quote.
I don't think it's an exception to the conservation of momentum at all, if it was real that is, just like how airplanes don't actually defy gravity. It does take some understanding of physics that most people lack.
I've looked at a few discussions on the internet, and it seems that every citation of physicists like Sean Carroll and others pointing out the problems with the em-drive explanations are met with expressions of absolute belief that the drive is working. Apparently, any skepticism whatsoever comes from old physics fogies who need to get out of the way of progress.
Airplanes don't "appear" to be violating any laws of physics. There is no law saying that objects cannot move upwards against gravity. Any fool can see that birds fly. On the other hand, there are a couple of laws of physics which do not allow the center of gravity of an object to change its motion unless an external force operates on it.
Edited by NoNukes, : No reason given.
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