131–140 of 389 posts
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Not an answer, but if you think superconductor is weird, look up superfluid, now that's going to make your head spin.
Thanks for the interesting new thing. If they suffer no loss in kinetic energy and a wave can move forever, could we use a circular pool of superfluid as an an energy storage mechanism?
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Personally, I think we are past the point of this being nothing. There have been multiple confirmations of at least something unexplained going on. Maybe all of them are wrong but honestly, that is more of an extraordinary claim than saying this is something interesting, just not a full on room temp superconductor.
I understand why a lot of people think this, but I don't think we can say that with confidence yet. Cold fusion "replicated successfully" multiple times in the 80s too.
Maybe there's a lot of smoke and no fire, but there's videographic evidence of something weird going on.
Summary of events so far: The claim: Room temp (~300K) superconductor exists and we got it! The replication attempts: The production method is so poorly documented only a fraction of the samples being made shows any interesting properties. And among those interesting ones, results varies. Very few, if any, attempt actually completely shows the entire spectrum of properties and behaviors of a true superconductor at ro…
Off-topic, but I admire the effort to translate the formula to Unicode characters in the title. It's not just a simple copy-paste from the article.
GPT-4 does it very well though. (Not saying OP used it, was just curious if that'd work.) Prompt: > Observation of zero resistance above 100∘ K in Pb10−xCux(PO4)6O > convert this to a title, with the correct usage of unicode Output: > Observation of Zero Resistance Above 100 K in Pb₁₀₋ₓCuₓ(PO₄)₆O
The chemical formula "Pb10−xCux(PO4)6O" can be written in Unicode as follows:
Pb₁₀₋ₓCuₓ(PO₄)₆O
Please note that not all characters may be perfectly aligned due to font
variations and rendering differences in different systems. However, this
representation should provide a close approximation to the chemical formula.
EDIT: Note that arxiv uses mathjax (JS) to take a compound formula as plain text and applies subscript, superscript, etc. styling to it. ("Pb10−xCux(PO4)6O")
Worth noting that the sample used did not produce a Meissner effect, but was still superconductive at ~100K. > To further verify the superconducting properties, we conducted magnetic measurements on the sample, but unfortunately, no obvious Meissner signal was observed, indicating that the superconducting volume fraction of the sample may be very small. The preparation of high-purity samples are still a challenging t…
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I would have said latex gatekeepers are the worst, but now I know eMacs geeks so no. Or was it vim? Can never tell!
‘eMacs’? It’s LaTeX that has the self-conscious capitalization!
Could someone explain why this is important? What is the consequence of the existence of Superconductors like that?
The biggest near future tech for superconductors: fusion power. One huge area of exploration for fusion power is tokamok reactor design, which requires a very strong magnetic field to confine plasma within a round shape - typically a torus, though I think I read of one spherical shell. I suppose these don't necessarily need room temperature super conductors, but cheaper and easier to manufacture superconducting mater…
It’s real, it works, the Navy has a linked patent from 2017. The UFOs are a PSYOP.
https://phys.org/news/2019-02-navy-patent-room-temperature-s...
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Is my understanding correct that 100k at ambient pressure is pretty special on its own?
YBCO and BSCCO are superconductors around 100K at ambient pressure. Unfortunately their brittleness limits their practical use. Maybe LK-99 will have better mechanical properties.
In this paper it is mentioned that the fact that the material is very fragile made it difficult to obtain pieces of a consistent size and form for measurements.
Moreover, from the results of the theoretical papers it is suggested that perhaps this material would work best as a monocrystal, with anisotropic conduction properties.
That could still have very important applications, but not for making cables or coils.