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Andrew McCalip demonstrates synthesis of LK99

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Re: Andrew McCalip demonstrates synthesis of LK99

#311

Earlier quoted context omitted.

It takes a lot of cognitive dissonance to be pro USSR in the first place, so a little more shouldn't hurt.

USSR means something different to Russians than it does to Americans. To Americans it was the Enemy. To Russians it was the last time that Russia was truly important on the world stage and had some degree of prosperity.

just some good ole nostalgia for stalin's purges!

Re: Andrew McCalip demonstrates synthesis of LK99

#312
post #111

Earlier quoted context omitted.

All I see from US academics on Twitter are debates about this and that. Borderline annoying. This is the first result from mighty US capitalist machine meanwhile 3 Chinese labs have published pre prints and Russian replicated it in her kitchen.

This, its utterly shameful. Hot takes here, hot takes there, skepticism here, tell people to calm down there. Yet not a single replication! China has gone through multiple failed and successful replications so far. And the first US replication is from an amateur. If LK-99 works out, expect some congressmen to use this as a bludgeoning tool against the state of US public science.

> gone through multiple failed and successful replications so far

The "successful" replications are partial. No one knows how to make a large enough sample of LK-99 that can be tested to definitely show superconductivity (or not) at room temp and ambient pressure.

IMO the most bullish research done yet is the theoretical research.

Re: Andrew McCalip demonstrates synthesis of LK99

#313

Earlier quoted context omitted.

> Maybe I'm misunderstanding, where did withholding information come into this? When I mentioned gatekeeping I was specifically referring to how there's this formula that was kept secret since 1999. At some point the potential significance surely became apparent, and one of the only speculations I can come up with to justify that would be gatekeeping; keeping the information out of the hands of the filthy commoners f…

They didn't keep it, they simply did not work on it and only came back to it 20 years later (somebody posted a bit of history on the other thread currently on the front page, I'm on mobile so it takes to long to find it atm). They didn't know about it's superconducting properties either. So no withholding information at all. But on a more general level if everyone would be posting out every little bit of information…

> They didn't keep it, they simply did not work on it and only came back to it 20 years later (somebody posted a bit of history on the other thread currently on the front page, I'm on mobile so it takes to long to find it atm). They didn't know about it's superconducting properties either.

I really do hope it's something innocent like this.

> if everyone would be posting out every little bit of information they produce during their research instead of publishing articles it would be a disaster.

I'm not sure it would be any worse than it already is. I don't see how we could achieve any more bombastic headlines than we already get.

Re: Andrew McCalip demonstrates synthesis of LK99

#314
post #142

Earlier quoted context omitted.

This, its utterly shameful. Hot takes here, hot takes there, skepticism here, tell people to calm down there. Yet not a single replication! China has gone through multiple failed and successful replications so far. And the first US replication is from an amateur. If LK-99 works out, expect some congressmen to use this as a bludgeoning tool against the state of US public science.

Nanjing University physics professor Wen Haihu said in an interview with The Paper that the news was extremely likely to be false and they only assigned a student to it because many groups internationally were working on replications https://www.thepaper.cn/newsDetail_forward_24024641 "A researcher from the Institute of Physics at the Chinese Academy of Sciences (CAS) declined to comment on LK-99, telling the Post th…

The other thing is that even if LK-99 is finally conclusively shown to be a room temp & ambient pressure SC, there will be lots of important challenges to work on surrounding LK-99, so not being the first to replicate is no tragedy:

  - challenges in practical and reliable
    manufacturing of LK-99
  - challenges in engineering w/ LK-99
  - challenges in finding better materials
    than LK-99 using similar approaches
If I were in a position where I could devote funding and researcher and lab time into LK-99 research, I might well quietly let others to do the replication work while having my team quietly research practical manufacturing of LK-99 so that we could a) beat everyone else to the punch on practical and reliable manufacturing, b) get the patents for (a).

Re: Andrew McCalip demonstrates synthesis of LK99

#315
post #43

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I think you're joking, I'd 100% assume it, except that I ran into some truly bizarre US patriotism while trying to follow McCalip's updates a few days ago - last relevant one I could find was 'materials coming tomorrow' on 27th, but then I couldn't find anything about using them or any update. Just a decent into people tweeting (in thread) about how great America is, the best country, etc. Really surreal. Think it wa…

I don’t think the USA is at the forefront of science, and I’m really disappointed to see discoveries like this originating from South Korea, China, and Russia before we saw results here. But even in light of that, I don’t think it’s very controversial to say that the USA is inarguably the greatest country on the planet. While it's true that the USA may not always be the first to every scientific discovery, what it is…

It’s simply because the US is the richest country on the planet[0]. A lot of money buys a lot of science. Many of those great discoveries are not made by Americans, if you look around at any of those American universities you’ll see people from all corners of the world.

So yes, the US is quite good at research, but it’s not due to some intrinsic quality of the country any more than a billionaire’s ability to attract beautiful women is down to their good looks. The US is simply punching at its (very heavy) weight.

[0] Why is the US the richest country? It has a lot of arable land to support a large population. Most of the original settlers came from the previous richest country, and it was never colonized (or more precisely it was never decolonized) meaning that the wealth was not diverted away from the people like it was in most of the worlds countries. The real story here is how China has completely mismanaged all the opportunities it’s had, you can thank Mao for that.

Re: Andrew McCalip demonstrates synthesis of LK99

#316
post #271
post #181

Earlier quoted context omitted.

Not go all conspiracy, but isn’t that also pretty much the playbook you’d run if you were trying to discredit it, to get as much of a jump on the rest of the world as possible? The Chinese government is not exactly known for playing fair .

That requires a government so competent they immediately notice the significance of a claimed breakthrough by a foreign lab and coordinate an information campaign where their leading scientists act all skeptical just like leading scientists in other countries, denying rumours that the Academy of Sciences is working on a replication etc., ... but completely fail to act on similar rumours sparked at the same time by sc…

Individual lab heads might do this sua sponte. Think: while everyone else is busy playing replication games you can work on reliably making LK-99 and beat everyone else to the punch on the more valuable patents and engineering glory.

Re: Andrew McCalip demonstrates synthesis of LK99

#317

I’m obviously way out of my depth here, But, How is this different than a tiny magnetized piece of iron ? Are they saying this piece showing in the video will always float the same way regardless of orientation ? Also would this effect still work with an electromagnet ?

A piece of magnetized iron would flip the other way if you turned over the magnet. That's why in the Chinese videos you see them remove the magnet, flip it over, and put it back.

The same "end" of LK99 floats, no matter which pole of the magnet you put toward the sample.

Re: Andrew McCalip demonstrates synthesis of LK99

#318

Wouldn't a regular fleck of magnetic metal do this too? I've seen many examples where metal dust arranges itself into lines along the magnetic field lines like this video is showing I'm absolutely not an expert on any of this so I'm probably missing something

A piece of magnetized iron would flip the other way if you turned over the magnet. That's why in the Chinese videos you see them remove the magnet, flip it over, and put it back under the sample.

The same "end" of LK99 floats, no matter which pole of the magnet you put toward the sample.

Re: Andrew McCalip demonstrates synthesis of LK99

#319

Earlier quoted context omitted.

This is simply what post-peer-review looks like. Instead of a few anonymous peer reviews, you get the entire planet to replicate. Moment you get something meaningful, publish it on arxiv. Quantity, not quality is king. Anomalies are drowned out by large samples. Questionable methods get mass debated in public. Scientists are dependent on public funding, why squander the biggest moment in pop science for literal decad…

There is a new claim or two of room-temperature superconductors published on Arxiv every year: https://nitter.net/peternemes/status/1684483863999827973#m ... and yet this is the only one that sets the Twitters afire. The reaction I've seen from most of the scientists has been pretty negative on the papers. The originals aren't strong papers. The chemistry has issues: https://nitter.net/Robert_Palgrave/status/16854501…

Your link sort of hints at the reason, I think. There's enough posted to make a serious run at replicating it, and it seems to be simple enough that you can do it in a kitchen. At the same time, it's not so easy that people have cleanly demonstrated it -- the constant rollercoaster of "we're so back" and "it's so over" I think drives some of the hype.

It also seems like it has at least pretty strong diamagnetism, which while not a demonstration of superconductivity is both somewhat interesting and gives a vivid demonstration that's amenable to social media.

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