It is very simple actually. Like magnetized ferrites, they function as superconductors when in alignment and as semiconductors when in disarray. You can see the path in straight through. How do we know that ? because the electron always goes in the south pole and out the north pole.So its path is shorter and it has no directional changes thus eliminating electron lose due to heat from friction and collision.
Even more important is when all electrons are working as one and they do in alignment, then there is only one EMF field to traverse; creating a superconducting material that levitates on EMF fields.
Sounds will disrupt this alignment so it needs to be in a sound proof environment; like the center of a spinning top. Which makes one wonder if UFO's use this type or propulsion when next to planets.
You can see this when they are trying to ride the EMF field and it varies, causing a jerking movement when they are trying to hover.
