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Successful room temperature ambient-pressure magnetic levitation of LK-99

arxiv.org

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Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#691

Post by lucubratory »

shusaku wrote: post #187
est wrote: post #92

So far lab replication efforts are: Two from HUST: https://www.bilibili.com/video/BV14p4y1V7kS/ https://www.bilibili.com/video/BV13k4y1G7i1/ One by USTC https://www.bilibili.com/video/BV1Ex4y1X7ix/ this tiny sample can stand on its pointy side. One by Qufu Normal University https://www.zhihu.com/zvideo/1669820225079070720 One with THU background but claims a personal project https://www.bilibili.com/video/BV14z4y1s7V…

I think the comments you are receiving are missing the simplest explanation: Chinese labs are better at synthesis, and there’s a lot of them.

A lot of commenters here are from the West, and the atmosphere between the PRC and the West (particularly the US) at the moment is quite a bit more acrimonious and competitive than it has been historically. It makes sense that people would leap first to essentially "They aren't as smart as us"/"They're less honest than us"/"They're less trustworthy than us" etc. The simplest and most likely correct explanation is that the PRC has a lot more STEM students in absolute terms and even proportionately, more and very well funded labs with very ambitious leadership and "national spirit"/"something to prove" style thinking, and that particularly in chemistry/materials science the PRC is dominant, with a huge proportion of all the highest quality chemistry focused universities, academies etc.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#692

Post by jacquesm »

marvin wrote: post #583
bawolff wrote: post #149

Earlier quoted context omitted.

Everyone talking about all sorts of important applications. All i want is a maglev hot wheels track using flux pinning. Just imagine all the cool toys a room temp semiconductor would enable.

Breaking the sound barrier in your five-year-old’s bedroom seems like a dodgy business idea.

My youngest would be all over that. I'm already concerned about the windows the way things are right now.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#693

Post by Zpalmtree »

iaraya19 wrote: post #389
robotresearcher wrote: post #65

Earlier quoted context omitted.

Im posting this reply from my mainstream smartphone: a pocket supercomputer with a 4K 60Hz HDR video camera. I’m chock full of designer vaccines and can watch a catalog of almost all the movies ever made on demand tonight. I listened to an podcast in my EV on the way to work. And SpaceX probably launched 60 satellites this week on the 14th flight of a rocket that flew home afterwards. Things have been moving along. e…

You are just repeating the same incredibly boring 'Tesla fanboy' things that Joe Rogan likes to say every now and then to create the illusion he's smart, up to date and edgy, which is the exact reason you don't sound smart at all.

stop being excited you sound stupid!!! hacker news obsession with doomerism is so boring

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#694

Post by toolz »

numbsafari wrote: post #686
jjallen wrote: post #432

One somewhat ironic fact of this story is that the rogue former employee perhaps deserves some credit for bringing this thing out into the world. They had been working on this for quite a long time themselves, rightfully so. But now the whole world is working on it and exploring other methods and combinations of materials I would assume (to improve upon the original design and avoid any patents). How long would they…

One, slightly more cynical, theory is that the rogue employee's motivation was to push the research out there in order to create an opportunity for them to engage in their own research or get funding to do that research by making public what they may otherwise have not be authorized to make public. It'll be interesting to see if there are any threats over an NDA or trade secret violations that come out of the origina…

I think an interesting outlook on these situations is that if you believe someone has the right values (e.g. earning money and earning respect from peers) then greed towards those values is a nobel pursuit.

If society can't make greed go away then maybe it's better to celebrate human nature and contextualize/guide it into being pro-social.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#695

Post by jacquesm »

dgoldstein0 wrote: post #527
heisenzombie wrote: post #164

Earlier quoted context omitted.

Also energy storage: https://en.wikipedia.org/wiki/Superconducting_magnetic_energ...

Neat, I hadn't heard of it, but totally makes sense

That's how superconductivity was demonstrated in the early days: a current in a loop that didn't decay.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#696

Post by devX3 »

WhereIsTheTruth wrote: post #250
nafey wrote: post #209

Earlier quoted context omitted.

This is a South Korean breakthrough

I am not stupid, I know that However, take a look at this: https://en.wikipedia.org/wiki/LK-99#Replication_attempts 0 from both the EU and the US Getting downvoted over this speaks volume ;)

There are two entries now from US labs added. I'm sure many more attempts are being made but are not on the chart. Maybe Wikipedia is not always up to date and accurate?

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#697

Post by a-user-you-like »

jjallen wrote: post #468
jjallen wrote: post #432

One somewhat ironic fact of this story is that the rogue former employee perhaps deserves some credit for bringing this thing out into the world. They had been working on this for quite a long time themselves, rightfully so. But now the whole world is working on it and exploring other methods and combinations of materials I would assume (to improve upon the original design and avoid any patents). How long would they…

I'd like to add that if this claim of having replicated the material with the reportedly poor description of how to do so is true then it really isn't that hard to replicate. I am surprised they haven't published a paper by now. And this suggests that they were conflicted for some reason about publishing, likely commercially so (as evidenced about the patent). Maybe they were trying to create a product with it that t…

> and humanity should not stigmatize them for doing so

If he really did it for all mankind then give him a huge prize

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#698

Post by jacquesm »

marginalia_nu wrote: post #683
jacquesm wrote: post #577

Earlier quoted context omitted.

It's a direct side effect of reputation and funding being closely correlated: if your reputation is that you put out stuff that doesn't work you won't get funded. This is dumb, but that's how the world works. That's why you almost always see the 'more research is needed' line in various papers, it is most helpful when seeking for funding that one paper will lead to another. But (unfortunately) negative results aren't…

> That's how we arrived at grants used to fund science. A lot of these gentleman scientists were independently wealthy aristocrats that didn't need hand-outs. The fact that we don't to a meaningful extent have that sort of leisure class anymore is arguably a much bigger reason we need grant funded science these days. It could be argued there a bit of a replication of the pattern in the space race between Musk and Bez…

Fair point, yes, they typically were quite wealthy for their time or already supported by the aristocracy.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#699

Post by jacquesm »

dwighttk wrote: post #606
p-e-w wrote: post #592

Earlier quoted context omitted.

This is the only website I actually trust to give me an accurate picture of where we stand on LK-99. As long as the blue line doesn't cross the red one, I won't believe in it. Money talks, bullshit walks.

What happened on July 31 to make the market briefly flip?

The first confirmation of some aspects of the sample by outsiders.

Re: Successful room temperature ambient-pressure magnetic levitation of LK-99

#700

Post by jurgenaut23 »

ChuckMcM wrote: post #129

For those experiencing this type of "black swan, but good" event for the first time, it is helpful to recognize that the human tendency to believe that all future "big events" will be dystopian downers, is statistically unsound. For a while I've kept a list of the things that could be "good" swan events, but to be fair I didn't have "room temperature superconductor on that list" :-) Other things that could happen: 1)…

Unpopular opinion of mine: I think that viable fusion energy would be the final nudge to our demise.

Our civilisation is an energy-junkie who happened to stumble on a huge bag full of cash around 1860 and the discovery of oil distillation. Since then, we have been on a hallucinating trip, burning down our house in the process. Viable fusion is essentially another huge pile of cash being deposited right across the street, just 10 times larger than 2 centuries ago. There is no coming back after that.

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