241–250 of 361 posts
Earlier quoted context omitted.
The initial claim was speculated to be room temp and ambient pressure superconduction. 110K is a far cry from that.
That could still be possible. We haven't found the ideal form of LK-99 yet, so another lab might have a form which is only stable to 110K, but that doesn't mean all will see the same thing.
Why are all these materials confirmations coming from Chinese speaking scientists? Do scientists in the US not do materials science so much?
Why are all these materials confirmations coming from Chinese speaking scientists? Do scientists in the US not do materials science so much?
To me this is encouraging. 110K is really high! It's higher than YBCO which is what they make commercial "high temperature" superconducting tape out of. IMO if this is legit (I have no way of judging the source) then this is the first good third party evidence that the original researchers are not just doing some kind of fraud. A total fraud wouldn't have actually discovered a novel high-temperature, but not room tem…
> I'm surprised the prediction markets don't seem to be reacting. Where can we look at prediction markets on this? For those of us who aren't familiar. I'm very curious -- because unlike sports scores or political elections, this seems like such a hard thing to define a prediction market around, because what is the exact threshold you're defining and what is the threshold of proof of that thing and on what date is th…
https://manifold.markets/QuantumObserver/will-the-lk99-room-...
Certainly no expert here but if you take the original video and replications at face value it does exhibit strong diamagnetism at room temperature. Superconductors are diamagnetic due to the Meissner effect at their superconducting temperature. This would mean LK99 is a superconductor at low temperature and separately be strongly diamagnetic at room temperature (no Meissner effect if it's not super conducting). Would…
The strength of the diamagnetism would be extremely anomalous if it were not a superconductor, and would need new physics/names - super-diamagnetism or something (which itself would still be very useful). The chances of it being new physical phenomena is vanishingly small - we're almost definitely seeing superconductivity at STP with this degree of diamagnetism.
To me this is encouraging. 110K is really high! It's higher than YBCO which is what they make commercial "high temperature" superconducting tape out of. IMO if this is legit (I have no way of judging the source) then this is the first good third party evidence that the original researchers are not just doing some kind of fraud. A total fraud wouldn't have actually discovered a novel high-temperature, but not room tem…
>At worst it seems to me like they discovered a cool new superconductor that may have commercial applications. At best, they may have a variant of this material that really is a room temperature superconductor. Either way, there is an important scientific discovery here. I feel like this whole thing is going to be graphene all over again. A massive initial hype around "world changing tech" that ends up being very dif…
That's kinda how science goes. The first free-electron laser was built in 1971. It took decades to develop and commercialize free-electron lasers and we still in the early days.
It is rare for a single discovery to revolutionize everything especially in the 21st century. Typically it is a series of discoveries in a row that taken together allow new processes and technologies. Each discovery on that road is important.
The short term impacts of discoveries are overestimated, the long term impacts are underestimated.
On a 50-100 year time scale, the perception of graphene may be very different from what it is now. We are looking at a tadpole and saying, I thought these eggs were suppose to hatch into frogs, not tadpoles.
Can someone with field expertise explain the implications if this material were real / replicable / cheaply manufacturable? I see a lot of breathless excitement in these comments, as if free energy and perpetual motion machines are right around the corner, but from the few details I've delved into it's more like the electric grid might get 10% more efficient, MRIs might get a little cheaper, etc. What are the excitin…
This is my first comment on this material, because I've been skeptical, but this result shouldn't be understated. It basically confirms the existence of a new family of high-temperature superconductors, the first of its kind since the cuprates in 1986. And for context, in the initial paper on the cuprates the critical temperature was measured to be 36 K. By synthesising other members of the cuprate family and optimis…
Specifically, it seems, a family based on a novel superconductivity mechanism. If this a real effect, there's not only significant scope to improve LK-99 synthesis, but also scope to find new materials that could use the same mechanism that operate at even higher temperatures, are easier or cheaper to produce, or that can move more current.
Earlier quoted context omitted.
Yes, that's what one team now says: that they have observed super conductivity and that this happens at a much lower temperature than the one claimed by the other team. But it is at ambient pressure and more importantly there are already multiple confirmations of the Meissner effect at room temperature. Besides that this experiment shows some really weird stuff happening at higher temperatures that needs to be explai…
What confirmations?