http://www.shelleys.demon.co.uk/fdec02em.htm" And check out new scientist's issue last week if you have subscription, http://www.newscientist.com/data/images/archive/2568/25681401.jpg" What do you guys think of the science behind this? He says with a superconducting cavity he could get 30,000 newtons per kilowatt - enough to lift(hover) a large car. He says it wouldn't be useful for propulsion but if it can lift a car againts gravity for a long period of time.. remove that gravity (such as in space) would it not go flying? And would it not be able to achieve at least 1g acceleration? (ie eath-to mars(median 280mil km) in just under 4 days including turnaround) Thanks, (whats my nick again?) P.S btw sry if this has been posted before, I searched.. nothing .. im new..