Meissner Effect Question

[niktes_pr]

Is a supercooled superconductor disc which repels magnetic flux actually opaque to magnetic fields?

Is anything above such a disc, which is floating over a magnetic field, sheilded from the rest of the magnetic flux?

Does the disc cast a magnetic \"shadow\"?

[BRH]

What about a more simple example that does not require extreme setups? I am thinking of magnetism, which is a purely quantum phenomenon with a macroscopically observable effect and you can observe it for the price of a kitchen magnet... though Nd magnets are so much cooler..