Is a perpetual motion machine now possible with a room temp superconductor like this?
Don't think so. Friction, at least, is still unavoidable
Successful room temperature ambient-pressure magnetic levitation of LK-99
801–810 of 1001 posts
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#802Earlier quoted context omitted.
> Why are't more labs outside China making LK-99 and publish videos? some possibilities: - they have not been able to conclusively replicate anything and don't want to publish a negative result for fear of someone else publishing a conclusive positive result later. - they are more careful to publish something that they are not (yet?) 100% sure about - they don't care so much about the whole 'science in the spotlight'…
To add to your list of possible reasons: - There are way more STEM graduates in China by a wide margin - 18/20 of top universities in the world for chemistry research is in China according to Nature, including one of the attempts by USTC (#2 ranking): https://www.nature.com/nature-index/institution-outputs/gene... - Supply chain is faster in China for chemicals and materials - China has more money/equipment for this…
Yes, good points though the money angle is debatable.
The USA and Europe are 'on average' also more pro-science than the rest of the world, but I think the East has the edge in education and comes across as more focused on progress. Probably this is underpinned in part because they have a ton of very hard problems that need solving and in the 'rich West' people are much less driven because their lives and the lives of their families are on average already quite plushy.
It makes you wonder what could happen in Africa and Latin America once they embrace education and science.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#803This 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!
10^-2 is 0.01
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#804Earlier quoted context omitted.
I would rather argue that energy consumption is the fundamental metric of the advancement of a civilization - increasing consumption is not of itself bad; whether we know how to clean up after ourselves (or if we're too busy trying not to die out) is a different problem. Limiting our energy consumption is a recipe for civilizational collapse. We have the wolf by the ears, and we can't let go. Best we can do is move f…
Yeah, that's why I said this is an unpopular opinion. Historical records tell us that energy consumption is a great indicator of civilization advancement, but so is territory. Now, the problem is that there is no further territory to acquire for us as we have pretty much exploited our planet to its bones. Free cheap energy will just make the planet crumble under our weight.
>Free cheap energy will just make the planet crumble under our weight.
You've said or implied this twice, but haven't put forward even a plausible mechanism why this would be a crumbling downfall.
The fuel is abundant and safe. The byproducts are safe. There are no carbon byproducts to contribute to global warming. I don't see any logic to your statements besides: previous bad, therefore next bad. I believe this is the definition of a non-sequiteur.
Please correct me if I am wrong or have missed something.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#805I'm not too familiar with this space. Could someone explain how big of an impact to the world this discovery is? What does the future of this technology look like over the next 5 years?
I think with a solid verification of superconductivity at room temperature, we probably don't see anything in 5 years, just because the production is so hit or miss. But I do think we see massive investment and research on this line of materials and different production techniques. Going from Science to Engineering and making this a thing you have plant making. I think its a 10+ year thing but its big.
Well... maybe. Or it could become like graphene.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#806Earlier quoted context omitted.
Not quite related to 2) but if the superconductors research pans out, portable high field desktop sized MRIs would be in the bag. Current portable MRIs are all low field (and to a certain extent, somewhat useless).
So far this material (and pretty much all liquid nitrogen ones) can't be used to create MRI sort of fields. There's a reason they all stick with liquid helium.
It's quite likely that if you cool this thing at liquid nitrogen temperature, its performance will improve a lot.
Not the revolution people are claiming, but it's a huge gain nonetheless.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#807Earlier quoted context omitted.
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…
It's not biased, it's a fact. I see it all the time as PC/AC/reviwer/etc.
There is deluge of terrible papers from China that are just a mess, below any imaginable standard. Ones that labs in the EU/US/Russia/Japan/etc. don't put out. Yes, everyone has to publish, and there are bad papers out there, but the volume and low quality from China is unmatched.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#808Earlier 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…
Thank you. I think I finally grasp what's going on now.
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#809Earlier quoted context omitted.
Hoverboards.
Is this a joke or are you serious?
Re: Successful room temperature ambient-pressure magnetic levitation of LK-99
#810EDIT: This is probably fake. The account was just created and can't find any info online. Also the pellet returns to its starting position for some reason. Just saw another unconfirmed replication here: https://twitter.com/instsondaw/status/1687433935012139008?s=... Found their process really fascinating, apparently they create L-99 powder, sort it by meissner effect, then press the "high meissner effect" powder toge…
People called the Soviet anime lesbian kitchen chemist a LARP but this is either Nobel or a fraud, personally very heavily leaning towards fraud.
Do we have russian anime lesbians doing superconductor chemistry in 2023? I'm here for it.