Live data from Hacker News

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

arxiv.org

791–800 of 1001 posts

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

#792
post #751

Earlier quoted context omitted.

People called the Soviet anime lesbian kitchen chemist a LARP but this is either Nobel or a fraud, personally very heavily leaning towards fraud.

I tried searching this strange string of nouns but was met with some strange results. What are you referencing?

https://news.ycombinator.com/item?id=36938648

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

#793
post #751

Earlier quoted context omitted.

People called the Soviet anime lesbian kitchen chemist a LARP but this is either Nobel or a fraud, personally very heavily leaning towards fraud.

I tried searching this strange string of nouns but was met with some strange results. What are you referencing?

Probably https://twitter.com/iris_IGB/status/1685731177523449856

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

#794

Earlier quoted context omitted.

Spelling doesn't impact the legal weight of a patent, but can help prevent people searching for them. You'd think to put your deliberate typos in the word 'supercobductor' though...

> supercobductor Now I'm imagining a high-velocity corn transfer mechanism

It's a device you use on each end of a corn pipeline.

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

#795
post #616

Earlier quoted context omitted.

Pyrolitic graphite can evade Earnshaw's theorem only with either specific magnet array shapes or with rotation, they still can't stably levitate on a regular dipole without rotation.

It can be done at all with a static arrangement of magnetic fields, though? Ooh.

Isn’t that those floaty spinning desk toys are?

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

#796

This is obviously a quickly produced paper to get the finding out but.... I find there to be so much missing and so many things poorly worded or posed about their process that would have taken zero time to expound upon, it's infuriating. "All the reactions are carried out under 10^-2 Pa" OK, I know they mean 10^-2 of vacuum. But why not say that? "10^-2 Pa" isn't enough. Was this a full vacuum oven? Done in sealed qu…

I agree, it could use more of the easy details, however, I don't have much issue with 10^-2 Pa, since standard atmospheric pressure is 101,325 Pa, so 0.1 Pa (10^-2 Pa, or 1.45x10^-6 psi) is definitely understood as a vacuum, but you're correct, why not just add "vacuum" for thoroughness.

I know mercury gauges use to have a 0 to 30 scale sometimes (not 0 to -30), and that was confusing!

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

#797

Earlier quoted context omitted.

It's also worth mentioning that room temperature superconductor "discoveries" happen a lot, and have always turned out to be a disappointment. It's been considered to be within the same bermuda triangle of scientific vaporware that demarked by quantum computers performing useful tasks, fusion power generation, that sort of thing. Always just around the corner and dude trust me it totally works in my lab. It's basical…

So how sure are we that this isn't yet another in a long line of disappointments?

We're not, and don't think there's a physicist in the world who wouldn't advice tempering expectations at this point. Yes it would be exciting if it's the real deal, but it's also far from the first candidate we've seen and so far they've never been replicated.

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

#798
post #771

Earlier quoted context omitted.

What personal benefit does this gain someone to publish it so quickly? Is it just social media attention?

There is intense pressure to publish as many papers as possible at Chinese universities. This has led to a big problem of faked or just bad research papers coming out of China, so people are generally skeptical of them

This is a quite biased view.

As a non-Chinese scientist, I can attest that there is intense pressure to publish as many papers as possible pretty much everywhere, and this leads to a problem of bad research across the world.

China may be among the worst offenders in this respect, but the particular thing the OP is asking about doesn't strike me as a Chinese-specific thing at all. I see non-Chinese scientists rushing half-baked results to arXiv all the time.

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

#799

Earlier quoted context omitted.

There would be some massive deprecation at the CERN and ITER sites.

You've got me wondering how much cheaper ITER actually gets if you don't need the magnets to be cryogenic.

What I wonder if the cooling requirement drops how much easier it is to get to break-even.

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

#800
post #751

Earlier quoted context omitted.

People called the Soviet anime lesbian kitchen chemist a LARP but this is either Nobel or a fraud, personally very heavily leaning towards fraud.

I tried searching this strange string of nouns but was met with some strange results. What are you referencing?

[deleted]
Post reply on HN