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Flux Pinning in sample of LK-99?

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Re: Flux Pinning in sample of LK-99?

#131

Post by marcosdumay »

stavros wrote: post #32
semajian wrote: post #31

It's hard to imagine how this could be faked short of digital manipulation, and it seems implausible that it would be a known high TC superconductor because it would warm up too fast. Absent the former explantation, I'm starting to believe this is real. Also, it's not like all the author's are unknown hacks. Hyun Tak Kim has about 10k citations (Google scholar, which sometimes combines people who have the same name t…

> It's hard to imagine how this could be faked short of digital manipulation So, it's easy to imagine how this could be faked.

I guess the point is, it can be a fabrication, it can be something very important, and it can't really be anything in between.

Re: Flux Pinning in sample of LK-99?

#132

Post by joquarky »

jacquesm wrote: post #14
satvikpendem wrote: post #6

Earlier quoted context omitted.

I've seen people saying this on Twitter and elsewhere, where are we back from?

I wished they would keep it on Twitter and elsewhere and not bring that crap to HN.

While I agree with your sentiment, the phrase "we're back" is at least as old as the film (1988) Coming to America, probably older.

Re: Flux Pinning in sample of LK-99?

#133

Post by ncr100 »

stavros wrote: post #32
semajian wrote: post #31

It's hard to imagine how this could be faked short of digital manipulation, and it seems implausible that it would be a known high TC superconductor because it would warm up too fast. Absent the former explantation, I'm starting to believe this is real. Also, it's not like all the author's are unknown hacks. Hyun Tak Kim has about 10k citations (Google scholar, which sometimes combines people who have the same name t…

> It's hard to imagine how this could be faked short of digital manipulation So, it's easy to imagine how this could be faked.

Alternatively, https://en.wikipedia.org/wiki/Pyrolytic_carbon is discussed in the Twitter thread by the OP as a possible explanation of "not superconductivity" . . .

Re: Flux Pinning in sample of LK-99?

#134

Post by Facemelters »

Qem wrote: post #114
light_hue_1 wrote: post #75

Earlier quoted context omitted.

Let's be less cynical. Nothing to do with borrowing reputation. The original authors have something. They don't have the expertise in condensed matter physics to really know what. They don't know how to report results and what results would be conclusive. Their work is simply not convincing, and if they were experts they would also not be convinced. That's why they brought in another collaborator who is an expert. Bu…

It's not cynism. The disagreement about authorship apparently was motivated by someone in the original team being pushed aside to open a slot for the well connected "10k citations" guy. It's a old problem academia still fails to address. See: https://journals.plos.org/plosbiology/article?id=10.1371/jou... https://en.m.wikipedia.org/wiki/Neo-colonial_science

No one knows if this version of events is true

Re: Flux Pinning in sample of LK-99?

#136

Post by gabesullice »

pera wrote: post #83
mcpackieh wrote: post #80

Earlier quoted context omitted.

How can it look like something that is ostensibly invisible? It's not swinging around like a pendulum, so what exactly are you seeing that makes you think it looks like an invisible string?

The thread is horizontally positioned, left to right, not vertically.

Finding a thread that small would be a feat of its own. I wonder if your eyes might be getting tricked by the watermark?

Re: Flux Pinning in sample of LK-99?

#137

Post by wredue »

rvnx wrote: post #79
Jevon23 wrote: post #70

Earlier quoted context omitted.

>Do yourself a favor and look up how far away other stars are, consider how many times astronomers have looked into space and not seen aliens Exoplanets weren’t confirmed to exist until 1992. Just sayin’.

And our goggles to see far away aren't that great. We barely know anything about the surface of these planets. The main argument in favour of the non-existence of aliens are religious books.

We don’t need to actually see the surface of a planet to know whether or not that planet harbours life capable of space travel depending how far away the planet is.

Unless they took a completely different, or radically faster pathway to interstellar travel.

Re: Flux Pinning in sample of LK-99?

#138

Post by Qem »

Facemelters wrote: post #134
Qem wrote: post #114

Earlier quoted context omitted.

It's not cynism. The disagreement about authorship apparently was motivated by someone in the original team being pushed aside to open a slot for the well connected "10k citations" guy. It's a old problem academia still fails to address. See: https://journals.plos.org/plosbiology/article?id=10.1371/jou... https://en.m.wikipedia.org/wiki/Neo-colonial_science

No one knows if this version of events is true

Indeed. But if further investigation reveals the situation to be what it appears to be, this would follow a long list of similar occurrences, the likes of César Lattes and Jocelyn Bell.

Re: Flux Pinning in sample of LK-99?

#139

Post by jacquesm »

thecopy wrote: post #86
semajian wrote: post #31

It's hard to imagine how this could be faked short of digital manipulation, and it seems implausible that it would be a known high TC superconductor because it would warm up too fast. Absent the former explantation, I'm starting to believe this is real. Also, it's not like all the author's are unknown hacks. Hyun Tak Kim has about 10k citations (Google scholar, which sometimes combines people who have the same name t…

According to this video: https://twitter.com/xmal/status/1300754522218913799 it is possible to have stable levitation using a copper plate below the magnet. OP's video has two stacked metal objects – could the lower one possibly contain copper?

They're stacked to increase the field density.

Re: Flux Pinning in sample of LK-99?

#140

Post by jacquesm »

malermeister wrote: post #128
keepamovin wrote: post #119

What I like most about this development is that, suddenly, folks with "CEO " or "Founder " in their Twitter bio look uncool, while folks with " " in their twitter bio are uber cool. Note to pedants: yes yes, the Venn diagram has an intersection.

Folks with CEO or "Founder" in their bio have always looked uncool imo.

I meet on average a hundred of those every year and while some of them are seriously uncool the majority is actually very impressive.
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