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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

#521

Post by Iulioh »

anonylizard wrote: post #504
m463 wrote: post #484

Earlier quoted context omitted.

Wait, how did co-discoverer a few days ago become rogue former employee today?

There's 3 main parties to LK99. L&K, are two PHDs taught by their now dead former professor. Their research into LK-99 is inherited from their former professor but they lacked funding, hence it was a hobby project for a long time, and they needed funding to work on it full time. The Korean professor: A professor who started taking interest and sponsoring the project for the last few years. However, he likely didn't p…

Wonder if the "their former professor" will recive meaningful credit

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

#522

Post by mousetree »

Iulioh wrote: post #512
wcerfgba wrote: post #455

Earlier quoted context omitted.

Exactly, the 99 stands for 1999, so potentially this material has existed for over 20 years and we could have started testing and replication on a much wider scale a decade ago. What benefit have we gained by disseminating this research so slowly?

This reminds me of an Asimov novel (don't remember the name) In this universe there are long life humans that don't really collaborate with other humans (like a single person, not a group of quasi immortal humans) in the scientific field to have all the credit because who cares if you take 200 years for a discovery if the glory is all yours

Maybe The Naked Sun or one of the books in that series? It’s been years since I read it but I remember there being some motif about people not interacting physically and living a long time.

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

#523

Post by anonylizard »

phtrivier wrote: post #510
anonylizard wrote: post #504

Earlier quoted context omitted.

There's 3 main parties to LK99. L&K, are two PHDs taught by their now dead former professor. Their research into LK-99 is inherited from their former professor but they lacked funding, hence it was a hobby project for a long time, and they needed funding to work on it full time. The Korean professor: A professor who started taking interest and sponsoring the project for the last few years. However, he likely didn't p…

For people who start the comic in the middle, can you provide the real names of the various superheroes mentionned here ?

The names are not helpful at all, because of Korean's overlapping surnames. But here you go.

L&K = Sukbae Lee, Ji-Hoon Kim

Korean professor: Young-Wan Kwon

American professor: Hyun-Tak Kim

Former (Long dead) professor: Tong-Seek Chair (Sample paper: https://link.springer.com/article/10.1007/BF02697404)

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

#524

Post by vlz »

phtrivier wrote: post #510
anonylizard wrote: post #504

Earlier quoted context omitted.

There's 3 main parties to LK99. L&K, are two PHDs taught by their now dead former professor. Their research into LK-99 is inherited from their former professor but they lacked funding, hence it was a hobby project for a long time, and they needed funding to work on it full time. The Korean professor: A professor who started taking interest and sponsoring the project for the last few years. However, he likely didn't p…

For people who start the comic in the middle, can you provide the real names of the various superheroes mentionned here ?

This comment has the names and links to the papers: https://news.ycombinator.com/item?id=36953050

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

#525

Post by ajmurmann »

Smoosh wrote: post #280
holtkam2 wrote: post #274

Earlier quoted context omitted.

1. Cure for aging 2. AGI exists and ends up being somehow, unexpectedly easy to control 3. Russia / China / North Korea eventually become democratic Some of the “good” black swans at the top of my mind…

I'm unsure if we want people living forever. While disease, illness, and senility are terrible things, as soon as people can live forever we will have eternal dictatorships (or people trying for it) as well as other questions of perpetual inequality. "Death renders all equal".

"Science progresses one funeral at a time" comes to mind as well.

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

#527

Post by dgoldstein0 »

heisenzombie wrote: post #164
dgoldstein0 wrote: post #155

Earlier quoted context omitted.

I think you mean lossless transmission? If we can actually replace transmission lines effectively with it, unclear whether it's practical for that yet.

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

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

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

#528

Post by anonylizard »

Iulioh wrote: post #521
anonylizard wrote: post #504

Earlier quoted context omitted.

There's 3 main parties to LK99. L&K, are two PHDs taught by their now dead former professor. Their research into LK-99 is inherited from their former professor but they lacked funding, hence it was a hobby project for a long time, and they needed funding to work on it full time. The Korean professor: A professor who started taking interest and sponsoring the project for the last few years. However, he likely didn't p…

Wonder if the "their former professor" will recive meaningful credit

This is already in the 6 man paper, that's how the internet deduced their story:

"ACKNOWLEDGEMENTS We acknowledge late Prof. Chair Tong-seek for initiating research of a 1-dimensional superconductor of over room temperature at atmospheric pressure. In particular, his enthusiasm on superconductor study impressed many researchers. "

If this works out, this will be by far the biggest invention from Korea ever. They will be remembered in every Korean textbook to the end of time.

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

#529

Post by senttoschool »

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…

>One by USTC https://www.bilibili.com/video/BV1Ex4y1X7ix/ this tiny sample can stand on its pointy side.

USTC is the second best university in the world in chemistry research according to Nature. [0]

[0] https://www.nature.com/nature-index/institution-outputs/gene...

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

#530

Post by httpz »

King-Aaron wrote: post #438
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…

Have you got any back-story on that? I only saw that their team posted it to arxiv, hadn't heard the other drama

In the early 90s, Prof. Choi theorized a new way of creating a room temperature superconductor but it wasn't really accepted by the mainstream. Supposedly, in 1999, two researchers in Choi's lab, Lee and Kim (hence LK), created the first sample of LK-99. They weren't able to reliably replicate nor were they able to fully explain the theory.

In 2017, as a dying wish, Choi asked Lee and Kim to continue on with the LK-99 research but asked to not publish it until they understand the theory behind it.

They founded a lab and collaborated with other scientists in the field and Kwon was one of them.

4 months ago, Kwon left the lab and two weeks ago Kwon leaked the paper. The paper Kwon leaked only listed Lee, Kim and Kwon as the authors and excluded other collaborators. Some suspect Kwon excluded the other collaborators because Nobel prize can only be awarded to three people at most. A few days after the leak, Lee & Kim hastily published a paper with four more authors but not Kwon.

https://namu.wiki/w/LK-99/%EC%A0%84%EA%B0%9C

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