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New scientist got a reply from the authors and a few other experts: https://www.newscientist.com/article/2384782-room-temperature-superconductor-breakthrough-me
by tux3 3y ago
New scientist got a reply from the authors and a few other experts: https://www.newscientist.com/article/2384782-room-temperature-superconductor-breakthrough-met-with-scepticism/ https://www.newscientist.com/article/2384782-room-temperatur...
>Kim has only co-authored one of the arXiv papers, while the other is authored by his colleagues at the Quantum Energy Research Centre in South Korea, some of whom also applied for a patent on LK-99 in August 2022.
>Both papers present similar measurements, however Kim says that the second paper contains “many defects” and was uploaded to arXiv without his permission. In that paper, the work is described as opening a “new era for humankind”.
>Other experts that New Scientist consulted were similarly sceptical about the results and the data produced. Some raised concern that some of the results could be explained by errors in experimental procedure combined with imperfections in the LK-99 sample.
- tigershark 3y ago“Both papers present similar measurements” I’m not a physicist expert of superconductors, although I’ve followed quite closely that field since the ‘90s. But if the measurements are similar and correct and if the video of lk-99 levitating above a magnet demonstrating the Meissner effect is not fake, I don’t really have an alternative explanation to account for all of that. I guess that we’ll see what happens in the next week or two. This is too high stakes to take longer than that for a so easily reproducible experiment.
- nazgulnarsil 3y agoIt has been proposed that alternative mechanisms besides SC can create diamagnetic effects. I think we're waiting on more informed updates because the people with the competence to comment on this are probably working furiously in a lab right now rather than commenting. edit: useful comment elsethread by macromaniac on plausibility of diamagnetic effects
- abrichr 3y ago> the video of lk-99 levitating above a magnet demonstrating the Meissner effect Can you please provide a link? Edit: found it https://sciencecast.org/casts/suc384jly50n https://sciencecast.org/casts/suc384jly50n
- drexlspivey 3y agoThis guy is live tweeting his attempt to reproduce https://twitter.com/andrewmccalip/status/1684433849781202944 https://twitter.com/andrewmccalip/status/1684433849781202944
- justinclift 3y agoSeems to be a single post?
- hackerting 3y agoYou have to login to view the thread. The new Twitter made it super confusing, I guess the UX designers are all gone at this point at X
- Thrymr 3y agoBecause X (sigh) doesn't show replies in public (if not logged in) anymore.
- justinclift 3y agoAhhh. Thanks. :) Yeah, I can't be bothered logging in.
- codethief 3y agoThere you go: https://nitter.net/andrewmccalip/status/1684433849781202944 https://nitter.net/andrewmccalip/status/1684433849781202944
- justinclift 3y agoFantastic, thank you. :)
- DarmokJalad1701 3y agoWithout paywall: https://archive.is/Lve8I https://archive.is/Lve8I
- antimatter15 3y agoSeems interesting that there appears to have been a patent application for LK-99 (https://patents.google.com/patent/KR20230030188A/en?oq=WO2023027536A1 https://patents.google.com/patent/KR20230030188A/en?oq=WO202...) filed two years ago in August 2021 (a year earlier than the article suggests). If true, it seems wild to sit on this kind of discovery for over two years. Update: Seems like there might be even more history given the name LK-99 apparently comes from the names of its discoverers Dr. Lee and Dr. Kim, and the year of its discovery, 1999 (https://kr.linkedin.com/in/ji-hoon-kim-03508b80 https://kr.linkedin.com/in/ji-hoon-kim-03508b80).
- yreg 3y agoNaive question: is that the original content of the application from 2021, or could it have been updated later? Is it the same material as LK-99 in the published paper?
- nazgulnarsil 3y agoquick googling appears to indicate that it was produced in trace amounts as a consequence of other experiments at that time and only was investigated in and of itself in larger amounts more recently? Awaiting more info from better informed people.
- hinkley 3y agoIs that, "I never meant to publish this," or is that, "It was a rough draft that I hadn't edited for accuracy or tone and fuck Steve for uploading it."
- bglazer 3y agoI’m guessing the second. Nothing in the interview suggests that he doesn’t stand behind the data. Sounds like he’s taking a wait and see approach and it’s a very good sign that he’s offering to help other researchers try to replicate
- elfbargpt 3y agoI really think this could be in-fighting for the third Nobel prize spot (if it turns out to be legitimate). I pointed this out in another comment, but the first two authors are the the LK-99 material namesake and will likely always be the first two authors. "YW Kwon" published the first paper with himself as the 3rd author, and "HT Kim" published the second paper a few hours later with himself as the 3rd author. Pretty interesting drama if that's the case. May indicate neither paper was ready, but that they all think the result is legitimate.