[Tobbin]

Basically, the theory is that it would create an electromagnetic field along the inner axis and rotate the outer axis to create a counter electromagnetic field to then push the rotating axis to create a vacuum imbalance (varying it's spacial distance thereby changing pressure inside the sphere.) Which, in effect, would push against the outer wall pressure (from outside of the vehicle) to force the object along. Seemingly to sound similar to having a ballon filled with water on the ground and then squeezing sections of the balloon to make it push itself forward. Sounds somewhat feasible, but very expensive if they are gonna use a nuclear generator to create the electromagnetic fields. Hmmmm.