5 ms·
Upcoming LK-99 paper will reportedly verify the superconductor
- zindlerb 3y agoThis article reads like it was written by chatgpt
- sumeno 3y ago[flagged]
- sschueller 3y agoEven if it does, it's a ceramic which makes its very limited for usability and you won't see it in an MRI machine or transmission line like the media wants you to believe. Also we actually already have some high temp super conducting ceramics. We need a metallic high temperature super conductor.
- anonymousab 3y agoWhat room+ temperature ceramic superconductors are there? Why would this not still be immensely useful anywhere a ceramic superconductor is currently used?
- sschueller 3y agoI said high temp. https://en.m.wikipedia.org/wiki/Bismuth_strontium_calcium_copper_oxide https://en.m.wikipedia.org/wiki/Bismuth_strontium_calcium_co...
- anonymousab 3y ago~104k is a world of difference from ambient room temperature.
- fooker 3y agoLN2 is cheap and can be maintained below 77k without a lot of infrastructure. So, a 104K superconductor is well within the range of being practically useful.
- anonymousab 3y agoI didn't say other superconductors were not useful. I was saying that one that can be used at higher, room temperature temps is at the very least a new, useful thing. That calling it "limited in usability" is odd when existing ceramic superconductors with considerably cooler temperature requirements are already useful?
- sschueller 3y agoThere is also https://en.m.wikipedia.org/wiki/Yttrium_barium_copper_oxide https://en.m.wikipedia.org/wiki/Yttrium_barium_copper_oxide which was discovered in 1986 and is above the boiling point of liquid nitrogen. But there are no applicable uses as of now outside a lab.
- howenterprisey 3y agoStill technically in a lab for now, but eventually not: https://en.wikipedia.org/wiki/ARC_fusion_reactor https://en.wikipedia.org/wiki/ARC_fusion_reactor > ARC uses rare-earth barium copper oxide (REBCO) high-temperature superconductor magnets in place of copper wiring or conventional low-temperature superconductors. These magnets can be run at much higher field strengths, 23 T, roughly doubling the magnetic field on the plasma axis.
- soerxpso 3y agoThis will be sufficient as soon as you can find a way to market a smartphone that only works while standing in a freezer. There's a world of difference between "above the boiling point of liquid nitrogen" and "in a room that people can use consumer electronics in."
- mhb 3y agoAnd we already have room temperature conductors...
- fooker 3y agoBecause liquid nitrogen is fairly cheap, and is usually needed anyway for cooling other components of complex systems.
- sillysaurusx 3y agoImagine winning the online bet after it drops to < 5% confidence. Yum. Why are we supposed to believe this new paper? Realistically there’s nothing here. This is an announcement of an announcement. All we can do is speculate. And I speculate that if there were a room temperature superconductor, it would have been proven in the first paper. That’s the point of a paper. EDIT: actually it’s 1%, so you’d 100x your money: https://www.metaculus.com/questions/18177/room-temp-superconductor-replicated-by-2025/ https://www.metaculus.com/questions/18177/room-temp-supercon...
- neftaly 3y agoIf this article is true (i.e. the quoted bullet points were actually said by Kwon) I would feel a bit more optimistic. I haven't checked the veracity at all. The metaculus wager says replication within 15 months. Point #2 #3 #5 & #8(!) is that this stuff is really really hard to make. Point #6 is pretty noncommittal about how long till the recipe is published (in the context of 20 years of work).
- hilbert42 3y agoEither he's digging a hole so deep for himself that he'll come out the other side of the earth or he's a genius with insights others don't have. It'd be damn nice if he were right though.
- ohadron 3y agoPlease don't build up my hopes, I'm not sure I'll be able to withstand additional disappointment.
- puppycodes 3y ago[flagged]
- pengaru 3y agoIt's a brittle ceramic, nothing we care about changes even if it's real.
- paulddraper 3y agoAbsolutely false. No matter what, if it were bonefide it would be interesting.
- pengaru 3y agoInteresting, sure. But let's stop deceiving everyone into thinking everything using superconducting wires/cables will magically become room-temperature if LK-99 is real. They won't, you don't make such things from brittle ceramic.
- doctor_eval 3y agoI wonder what percentage of the worlds conductors actually need to be flexible? There’s probably many meters of electrical traces in my iPhone’s logic board and ICs, most of which are presumably copper, but don’t need to be. The whole outer case of my phone is made of ceramic so it doesn’t seem like it would be a problem.
- rich_sasha 3y agoIs there use for almost-superconductors? E.g. could you take fine room-temperature superconductor powder, stick it into copper or sth and have something that's a fraction of resistivity of copper (but not 0)?
- jiggawatts 3y agoA brittle ceramic that can be deposited as a thin layer onto a substrate is more than sufficient for a very wide range of applications. Antennas in mobile phones, EM shielding for sensitive amplifiers, motherboard circuitry, etc, etc...
- tw1984 3y ago[flagged]
- thelittleone 3y agoIsn't science about inquiry and curiosity? The paper hasn't been released yet, what makes it nonsense?
- tw1984 3y agostudies by major countries around the world have conclusively proved that LK-99 isn't the claimed superconductor.
- brucethemoose2 3y agoMy money is still on LK-99 being a finicky topological (only conducts in one direction) superconductor. Its what the simulations suggest. It would explain why the replication attempts failed. Its perhaps no world-saving bulk superconductor, but that still seems like a fascinating material for, say, microelectronics or high power electronics. For instance, what if foundries could align it and work it into a metal layer for microchips? Maybe they could take advantage of the directionality to make a gate out of it.
- Lewton 3y ago> Its what the simulations suggest. You have been misled by hypemen on twitter
- _ph_ 3y agoThat is the beauty of the scientific process: if Kwon provides good scientific data, it should be a quick process to verify that.