A couple of questions just popped into my mind: (in theory) could an extra-tall building be built using superconducting and magnetically levitated storeys on top of another repeatedly? Does the total weight increase when you have several levitating magnets? Do the magnets still levitate if the superconductor is inside a vacuum flask? The materials are glass and silver - neither of the two does not seem to affect permanent magnet’s field.
Newton’s Third Law always, always, always holds: If A is exerting a force on B, then B is exerting the same amount of force on A, in the opposite direction. This works regardless of the nature of the force. So if a magnet is exerting an upwards magnetic force on a piece of superconductor, holding it up against gravity, then the superconductor is exerting a downwards magnetic force on the magnet, and whatever the magnet is supported by has to exert enough force to support both of them.
The presence of an atmosphere is irrelevant. Magnetic forces do not require an atmosphere, and work just fine in vacuum.
What I meant was that if you have a superconductor inside the bottle would the magnet still levitate outside the bottle? Would this “magnetic work” have any effect on the stored supercooled liquid (as a matter of it’s thermal efficiency)?
Oh. Yeah, magnetic levitation would probably work through glass. It’s hard to be sure, though, since really, all materials are magnetic in some way or another, and that can be significant once you start dealing with strong enough fields.