Re: Do Permanent Magnets Dissipate?

Well, essentially I'm trying to create a levitating rod inside of a
drum, and have the rod rotate inside in mid-air, levitated by magnets
located on the inside of the drum. It would look something like this:

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I know that there already exist devices like that, but they all depend
on magnets, which as we've discussed previously, dissipate over time.
I'm trying to create a version that won't lose it's magnetic
properties, and be able to keep rod properly levitated. Remember, this
is an entirely theoretical machine, but I'm just trying to figure out
if it is at least physically possible. With your proposal of using a
superconducting coil as a replacement for the magnets, that would solve
the problem of the drum and rod losing magnetic properties. By
replacing the exterior surface of the rod and interior surface of the
drum with superconducting coils, one would be able to levitate the rod
without any eventual magnetic loss.

If temperature is a concern for superconducting coils, then perhaps
placing the whole apparatus in a cryogenic chamber would keep
everything at a proper temperature. Obviously, as no room-temperature
superconducting material yet exists, I suppose I will need to modify my
plans to include a cryogenic encasement. In your opinion, do you think
the use of superconducting coils in a cold enough environment be able
to levitate the rod without any eventual loss of magnetic ability?

.

Relevant Pages

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