Flux Pinning in sample of LK-99? • Hacker News Board

Re: Flux Pinning in sample of LK-99?

#141

Post by mensetmanusman » Sat, Aug 05, 2023, 4:15 PM UTC

Iulioh wrote: post #127

mensetmanusman wrote: post #124

Earlier quoted context omitted.

It is illegal in places that have rule of law. This is to create a risk reduction mechanism for investing in capital to make this at scale, which will cost on the order of $100-500M to scale for world use through trial and error. If IP is ignored, no business will invest in the initial experiments due to first mover disadvantage in game theory.

>If IP is ignored, no business will invest in the initial experiments due to first mover disadvantage in game theory. Not if you belive that

This has been shown to be historically true, because startup costs can be tens to hundreds of million in R&D.

The business that spends will have their workers immediately poached if they don’t have IP protecting their initial startup costs.

Re: Flux Pinning in sample of LK-99?

#142

Post by jacquesm » Sat, Aug 05, 2023, 4:19 PM UTC

BasedAnon wrote: post #25

is it possible in theory that flux-pinning could occur without actually causing superconductivity? because LK-99 seems to be decoupling alot of properties we thought were coupled if I'm understanding correctly?

That would require 'new physics'. I think most of the weirdness stems from either (1) sample impurity, (2) an extreme form of that where the active bits are really tiny in a large chunk of inert stuff or stuff with its own electromagnetic properties or (3) being mistaken about it being a superconductor in the first place.

Re: Flux Pinning in sample of LK-99?

#143

Post by jacquesm » Sat, Aug 05, 2023, 4:21 PM UTC

mcpackieh wrote: post #65

amelius wrote: post #16

Can anyone explain if the specimen was found through rigorous research or just sheer luck? Because it is starting to seem like it's the latter.

Trying lots of stuff for years and years until something works, aka rigorous research and sheer luck.

Guided brute force search.

Re: Flux Pinning in sample of LK-99?

#144

Post by jacquesm » Sat, Aug 05, 2023, 4:22 PM UTC

XorNot wrote: post #90

traverseda wrote: post #46

Earlier quoted context omitted.

What about those Flux pinned maglev "trains" you see on YouTube?

The idea of those (i.e. like this https://www.youtube.com/watch?v=AWojYBhvfjM&vl=en ) is that they're an example of equi-potential behavior. The superconductor can move because it's staying at a consistent height. The video linked is also pretty good at showing similar behaviors to the sample of LK99 we see claimed in the video: the superconductor can wobble, shake and does return to it's original position (or tries…

And when you change the mass of the train the height of levitation changes.

Re: Flux Pinning in sample of LK-99?

#145

Post by ynniv » Sat, Aug 05, 2023, 4:26 PM UTC

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.

It can easily be faked, using a technique that would destroy the poster's career. It's one thing to not do something to the letter, and another to commit blatant fraud. Most career academics would not burn their career for the lulz.

Re: Flux Pinning in sample of LK-99?

#146

Post by stavros » Sat, Aug 05, 2023, 4:28 PM UTC

ynniv wrote: post #145

stavros wrote: post #32

Earlier quoted context omitted.

> 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.

It can easily be faked, using a technique that would destroy the poster's career. It's one thing to not do something to the letter, and another to commit blatant fraud. Most career academics would not burn their career for the lulz.

It's an anonymous video.

Re: Flux Pinning in sample of LK-99?

#147

Post by malermeister » Sat, Aug 05, 2023, 4:34 PM UTC

jacquesm wrote: post #140

malermeister wrote: post #128

Earlier quoted context omitted.

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.

They can be impressive and there's nothing wrong with being a founder or a CEO (I'm one, too!).

Putting it into one's bio is what makes it... cringe, as the kids say.

Re: Flux Pinning in sample of LK-99?

#148

Post by jacquesm » Sat, Aug 05, 2023, 4:37 PM UTC

malermeister wrote: post #147

jacquesm wrote: post #140

Earlier quoted context omitted.

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

They can be impressive and there's nothing wrong with being a founder or a CEO (I'm one, too!). Putting it into one's bio is what makes it... cringe, as the kids say.

It's something pretty standard for funded start-ups because the rest of the ecosystem that they operate in expects it. If it is two guys in an attic it's cringe (see my 'you are not the CEO article') but if you have picked up some funding and employ 20 people I totally get why you would do that.

Re: Flux Pinning in sample of LK-99?

#149

Post by rvnx » Sat, Aug 05, 2023, 4:37 PM UTC

wredue wrote: post #137

rvnx wrote: post #79

Earlier quoted context omitted.

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.

https://www.freethink.com/wp-content/uploads/2022/09/image.p...

These are pictures of exoplanets made in 2022.

I doubt we really know what is going there.

The best we can do is to guess the chemistry of the atmosphere and assume that all forms of lives require the same setup as on Earth.

Re: Flux Pinning in sample of LK-99?

#150

Post by mcpackieh » Sat, Aug 05, 2023, 5:12 PM UTC

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.

But you haven't explained how it looks like that. It could be that, but it looks like it's floating. What is it about the appearance of this thing which has you believing there is a string?