So lk-99 is supposed to behave like a type-II superconductor? Is this expected for a room temperature superconductor?
Flux Pinning in sample of LK-99?
211–220 of 225 posts
Re: Flux Pinning in sample of LK-99?
#212Earlier quoted context omitted.
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?
The object that is rotating is a magnet. It's not what we're seeing with the flake which appears to be flux pinned. If this is fake, it's a very well-done fake. I'm feeling 60% sure that LK-99 is RT superconductor at this point. It has theoretical support now since last weekend.
Most flux pinning examples on youtube allow rotation (With round superconductors and magnets, though.)
Re: Flux Pinning in sample of LK-99?
#2131. This video is originally from an anonymous Douyin account. There is no verification that it is associated with a real replication attempt, from traditional academia or citizen science. There is a previous video on the channel showing the partial levitation more common to LK-99, but it likewise has no particular evidence it's not just a flake of pyrolitic graphite. It is claimed to be associated with a specific per…
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Re: Flux Pinning in sample of LK-99?
#2141. This video is originally from an anonymous Douyin account. There is no verification that it is associated with a real replication attempt, from traditional academia or citizen science. There is a previous video on the channel showing the partial levitation more common to LK-99, but it likewise has no particular evidence it's not just a flake of pyrolitic graphite. It is claimed to be associated with a specific per…
Yeah, why on earth would you use only a wide angle lense to film something microscopic? You would zoom in close to your amazing discovery. But, this way, the interesting thing is a only a few pixels, and can easily be computer generated. Every video I've seen has some logical flaw like that.
Re: Flux Pinning in sample of LK-99?
#215Earlier quoted context omitted.
Can you explain what uses room temp squids and JJ’s would have for magnetotelluric geophysics?
Better cheaper faster ultrahigh magnetic sensing of magnetic flux and field across a broad dynamic range. Typical setups are networked fields of multiple axis sub nanotesla magnetic sensors with processing to reduce noise and subtract interference in order to extract a differential change across time and space to convert to a deep earth image. You know, the usual stuff. The essential principal is a fixed sensor (netw…
Not to mention no more HUGE and HEAVY field coils to lug around and bury...
Re: Flux Pinning in sample of LK-99?
#216Earlier quoted context omitted.
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?
If there is a magician on the stage, you can safely presume there is no actual magic involved, even though you do not know how exactly the trick works. For actual flux pinning, the first thing you would do is show what happens if you put the thing upside down. It should stick. Even if it does not, you would show that it does not .
The point of the illusions in a good magicians act is that they look like magic. If the illusions look like invisible strings/etc, then they were poorly done. Even if you know there must be a string, it shouldn't look that way.
So what I'm saying is that even if it's reasonable to deduce that this supposed magnet is being suspended from a string, it doesn't look like it is. If it is fake, it's a well-done illusion not a shoddy illusion.
Re: Flux Pinning in sample of LK-99?
#217Earlier quoted context omitted.
Better cheaper faster ultrahigh magnetic sensing of magnetic flux and field across a broad dynamic range. Typical setups are networked fields of multiple axis sub nanotesla magnetic sensors with processing to reduce noise and subtract interference in order to extract a differential change across time and space to convert to a deep earth image. You know, the usual stuff. The essential principal is a fixed sensor (netw…
Not to mention no more HUGE and HEAVY field coils to lug around and bury...
You carry stuff ?!!?
Get a plane: https://www.magspec.com.au/about-magspec
STOL crop dusters are fun: https://www.youtube.com/watch?v=1_MO5Wfomks
Re: Flux Pinning in sample of LK-99?
#218Earlier quoted context omitted.
Not to mention no more HUGE and HEAVY field coils to lug around and bury...
You carry stuff ?!!? Get a plane: https://www.magspec.com.au/about-magspec STOL crop dusters are fun: https://www.youtube.com/watch?v=1_MO5Wfomks
Planes are great for high frequency signals, granted.
Deep stuff requires much longer frequencies.
Re: Flux Pinning in sample of LK-99?
#219Earlier quoted context omitted.
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.
Assuming they have technological advancement similar to ours, we know that they don’t harbour intelligent life as of their light year distance away.
Re: Flux Pinning in sample of LK-99?
#220Earlier quoted context omitted.
If there is a magician on the stage, you can safely presume there is no actual magic involved, even though you do not know how exactly the trick works. For actual flux pinning, the first thing you would do is show what happens if you put the thing upside down. It should stick. Even if it does not, you would show that it does not .
The point of the illusions in a good magicians act is that they look like magic. If the illusions look like invisible strings/etc, then they were poorly done. Even if you know there must be a string, it shouldn't look that way. So what I'm saying is that even if it's reasonable to deduce that this supposed magnet is being suspended from a string, it doesn't look like it is. If it is fake, it's a well-done illusion no…
Whether it "looks like it's on a string" is highly subjective. Suppose I primed you by saying: Look at this speck of dirt on a string, does it look like a speck of dirt on a string to you?
In all likelyhood, your answer would be: Yes, it does.
It's clear however that a lot of us (myself included) don't want to see a speck of dirt on a string. They want to see history in the making.