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Room temperature, ambient pressure superconductivity – this time for real?

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Re: Room temperature, ambient pressure superconductivity – this time for real?

#191

Post by sibeliuss »

alexb_ wrote: post #184
sibeliuss wrote: post #181

People are quick to dismiss astrology, but the last time Pluto entered Aquarius (which will happen for the next 20 years starting in Dec) we had the Industrial Revolution. The time before that we had the Scientific Revolution. Things are right on track with this discovery.

Correlation is not causation. Why would the position of the planets have anything to do with the discovery of revolutionary technology?

That's a great question that nobody knows the answer to.

Again, the last time this planet was positioned as such radical technological world-changing innovation happened (Industrial Revolution). Rewind a few hundred years, and we see it happen again (Scientific Revolution). Another revolution is incoming.

Re: Room temperature, ambient pressure superconductivity – this time for real?

#192

Post by alexb_ »

sibeliuss wrote: post #191
alexb_ wrote: post #184

Earlier quoted context omitted.

Correlation is not causation. Why would the position of the planets have anything to do with the discovery of revolutionary technology?

That's a great question that nobody knows the answer to. Again, the last time this planet was positioned as such radical technological world-changing innovation happened (Industrial Revolution). Rewind a few hundred years, and we see it happen again (Scientific Revolution). Another revolution is incoming.

I doubt I'm going to convince you of anything. But it is nonsensical to think that the position of the planets have any effect on people. You see a correlation in two data points and are extrapolating it, despite having no explanation as to why that would be the case. If you have an explanation as to why the position of Pluto would affect the development of technology, I would love to hear it.

Re: Room temperature, ambient pressure superconductivity – this time for real?

#193

Post by ncann »

anonymouse008 wrote: post #3
mijoharas wrote: post #2

So, has anyone seen any of the replication studies start coming in yet? From what I've read we seem to be waiting on those. (and I think they're likely coming today or tomorrow?)

I'm following this fellow: https://twitter.com/andrewmccalip Seems to have the right energy [edit thanks folks] https://nitter.net/i/status/1684433849781202944 Here’s a more colorful play by play as well: https://nitter.net/8teapi/status/1684586672917565443

So the authors are disciples of a professor specialized in superconductor, their own Master and PhD were about superconductor, then they created a lab/company specifically for researching superconductor. This is contrary to my earlier belief that they were just normal chemists/physicists that happened to stumble upon an interesting material.

Unless they're lying through their teeth, it's hard to believe they would not recognize an actual SC when they see one.

Re: Room temperature, ambient pressure superconductivity – this time for real?

#194

Post by lamontcg »

phoenixstrike wrote: post #26

I am going to attempt to address the common nitpicks in one fell swoop: 1. Rushed publication, plot quality, grammar, etc. Get over yourselves. This is a pre-print for an instant-Nobel, next-tier-of-civilization level discovery. The proper publication will come in due time. Waiting for a more complete verification is a sheltered view. Being first matters. Things changed after the J/Psi discovery in 1974. For those th…

> 2. "Terrible science." Again, get over yourselves. Just because the preprint doesn't match your taste specifically doesn't mean it's bad science. You can't satisfy everyone- there will ALWAYS be someone who complains about some missing measurement or plot they view as essential. Most of the time, the 'missing' component is directly related to their own work. In other words, people want to see what they understandd as being important to them, also reflected in other publications. That does not mean it's a valid criticism. It's nitpicking.

Not knowing the precise Tc for the material isn't nitpicking that is pretty basic ("above 400C" isn't a very precise measurement). Questioning if their graph showing the Meissner effect isn't really showing the Meissner effect isn't really some obscure criteria.

Bet we get results a whole lot quicker than that as well.

Re: Room temperature, ambient pressure superconductivity – this time for real?

#195

Post by synapsomorphy »

The lead author says (translated):

“In 2020, I submitted my research results to Nature for the first time, but Nature felt burdened about publishing the paper because of Professor Dias’ case, and asked for it to be published in other professional journals first.”

https://n.news.naver.com/article/366/0000920152

Re: Room temperature, ambient pressure superconductivity – this time for real?

#196

Post by EvgeniyZh »

dougmwne wrote: post #137
guerrilla wrote: post #113

Earlier quoted context omitted.

People were arguing about this earlier (some claimimg the opposite) but I didn't see a conclusion. Do you have an external citation handy?

Citation: thermodynamics. https://en.m.wikipedia.org/wiki/Landauer%27s_principle

We are very far from Landauer limit tho

Re: Room temperature, ambient pressure superconductivity – this time for real?

#197

Post by zardo »

bick_nyers wrote: post #170
rcpt wrote: post #166

Earlier quoted context omitted.

Ultra efficient super fast maglev trains between our most important cities? Not in MY backyard!

You want to bury a power cable connecting my city to a solar farm in the Sahara desert? Not in MY backyard!

Oh you say it's made out of lead, well in that case could you run my drinking water through it?

Re: Room temperature, ambient pressure superconductivity – this time for real?

#198

Post by badman2001 »

Recent W&M Condensed Matter Physics Grad. Worked closely with HT Kim, not on this project. He is a trustworthy guy, knows his stuff. I think he is right when he calls the paper very sloppy, I am confused why there is no phase diagram and the sample purity seems suspect. These are things I think would have been addressed in peer review and would give me more confidence overall. Probably not fraud, but doesn't mean it's superconductivity.

Not optimistic about replication in the next week too, Solid State Synthesis seems "easy" but in my experience can be problematic. Not an expert in that part though

Re: Room temperature, ambient pressure superconductivity – this time for real?

#199

Post by iefbr14 »

mrbonner wrote: post #165

I’m a noob when it comes to SC. Sorry to ask this question here and hope someone could explain. I can’t get any answer from Google. What is the excitement around seeing floating magnets? My understanding is that we can have 2 regular magnets float if position them in opposite polarity, right?

I think they use a shard of the end of an ferrite loopstick antenna to fake the so called levitation. With some help, as seen in the video, it will orient itself in the field lines of the magnet.

Re: Room temperature, ambient pressure superconductivity – this time for real?

#200

Post by MobiusHorizons »

Can someone help me understand what it means for a superconductor (which should have zero resistance) to have such a low current capacity? Does this mean it's possible to have a voltage drop across the superconductor? Does that voltage drop somehow not result in power dissipation? Is it something like capacitive or inductive reactance?
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