From: Bob Higgins * Even if true that H(-1) exists as a superfluid/RTSC (and Winterberg says that the ultra-dense form only occurs with deuterium), then it is highly likely that it would be a type II superconductor, like all of the superconductors above about 40K. The type II superconductors pin a magnetic field inside it if the field was there when the superconducting state formed. So, you wouldn't get the instant repulsion.
Bob, Yes Winterberg could be correct about deuterium, which is an inconvenience for the glow tube application, if it is required. AFAIK, Holmlid thinks either will densify - but only uses deuterium… so the issue is unsettled. I think a bosonic species is required. The purported density of the cluster, if Holmlid is correct, makes one wonder if massive numbers of deuterium bosons are not literally occupying the identical space, even at the elevated temperature. The type-ll SC works best for the previous suggestion - and is what was assumed. In fact, all high temperature superconductors are type-II AFAIK - so the true Meissner effect should not have been mentioned. In the flux pinning state, a superconductor becomes pinned in space away from a permanent magnet, but not too far away. Many of the popular images purporting to be Meissner effect “levitation” are actually Type ll. Since the D(-1) superconductor cluster wants to be pinned away from, but near, the ferromagnetic catalyst, it should tend to lodge in the alumina - but not be expelled.
