Yes, extrapolation is the fun part, even if premature.
One possibility which is intriguing to anyone who experiments with ultra strong
NIB magnets-
... imagine a small switchable magnet with a surface field of 10 T instead of
.5 T.
Bob Higgins wrote:
You are right, of course, Jones. The point is that application of RTSCs will
likely not be something that is a direct extrapolation of how today's
superconductors are used. The "killer app" for RTSCs will be something only
found when RTSCs materialize, taking advantage of the yet-to-be discovered RTSC
unique properties. Part of the problem in finding RTSCs is that they may poorly
resemble what are regarded as superconductors today.
On Mon, Jul 12, 2021 at 7:31 AM Jones Beene wrote:
Hey Bob,
Yes, the "killer app" for RTSC, if there is one, is not apparent...
... however, it is probably not wise to belittle an emerging technology which
is so fundamentally advanced that the best applications are not even evident to
the proponents... or ... to quote a leading expert on the emergence of a prior
breakthrough tech of some years ago...
"I think there is a world market for maybe five computers."
Thomas Watson, president of IBM, 1943
Bob Higgins wrote:
When I worked in research for a large company, the discovery of the first
HTSCs stimulated research into the RF properties of superconductors - type I
and type II. Since there was a huge jump in Tc, we considered that room
temperature superconductors were just around the corner. What we discovered
was that the higher the Tc, the worse the usable qualities of the
superconductor. Our estimate was that a RTSC would actually be no better than
copper. Superconductors are only zero resistance at DC. There is a finite
penetration of current in all superconductors for AC and RF. The closer you
are to the Tc and the higher the Tc is, the more AC/RF resistance you have and
the lower the critical magnetic field. Our conclusion was that the only
superconductors that were useful over Cu for RF applications were deeply cooled
Type I. I think that RTSCs will only have niche applications. But ... I would
love to be surprised.
Well as this paper implies, the field of superconductivity is "heating up"
these days ..literally
The prior story which may be very important on this point - and in the
relentless progress towards usable RTSC - room temperature superconductivity -
itself came out just a few weeks back
https://phys.org/news/2021-07-ternary-hydrides-lanthanum-yttrium-high-temperature.html'
... which is a high pressure but ambient temp (non cryogenic) phenomenon...
involving superhydrides ... which curiously could be related to LENR and the
Mills/Holmlid effect, if as I suspect the superhydrides are found to be in
highly redundant ground states (as an alternative to pressurization)
The holy grail of course would be a metal superhydride going into RTSC phase at
ambient pressure.
This advance would revolutionized the economy in so may ways - it would be the
"next big thing" as they say.
Does the "Berry phase" of this new theory help us to understand superhydride
RTSC ?
It doesn't look that way so far. The whole thing could be little more than hype
if it does not illuminate RTSC.
You have to worry when a PR firm releases a technical paper.
Kevin O'Malley wrote:
A Super New Theory to Explain Superconductivity
Journal of Superconductivity and Novel Magnetism ^ | 5 July 2021 | Hiroyasu
Koizumi
