Quantum Levitation: The Coolest Science You'll See Today

brunothepig

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May 18, 2009
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This video made the rounds on Facebook among my more sciency friends just a few hours ago. My mind is still totally fucking blown. Amazing the things they're doing lately.
 

octafish

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Apr 23, 2010
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I distinctly remember seeing demonstrations like this ten years ago. What is new here? Can a friendly boffin please explain how this is any different from a maglev train?
 

TJ rock 101

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May 20, 2008
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It makes me wonder if you could make the disk a bit bigger and have a small bit under it to put the thing that makes it float, could it then just fly off on its own? Leading to amazing flying transport? I think so.
 

Formica Archonis

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Nov 13, 2009
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Twilight_guy said:
My question: If the thing is negative 185 Celsius how does he avoid burning his fingers when he touches it?
He doesn't touch it for long enough for the cold to penetrate. I've seen scientists do something similar (handling it without gloves) with molten lead, as well.
 

Pinkamena

Stuck in a vortex of sexy horses
Jun 27, 2011
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So... How is this different from all the other super-conductivity materials hovering over magnets? Is it that it gets locked?
 

dmase

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Mar 12, 2009
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Wow I'm learning a simplified concept of this in physics. right hand rule anybody.
 

Agayek

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Oct 23, 2008
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Jibblejab said:
Sorry I had to

OT: That is brilliant, +10 internets to them. Could it have a use?
Awesome picture.

Also, this most certainly will have a use. We just need to figure out room temperature superconductors first (which to my understanding would be the "splitting the atom" of the modern era), then we'd have repulsorlift tech and all sorts of fun things like that.
 

Agayek

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Oct 23, 2008
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octafish said:
I distinctly remember seeing demonstrations like this ten years ago. What is new here? Can a friendly boffin please explain how this is any different from a maglev train?
It's different in the fundamental mechanics it uses. Maglev trains use magnetic repulsion to keep things separate. Essentially what they do is take two really powerful magnets, strap one to the bottom of the train and one to the rail, and make sure that the poles towards each other are the same. This generates lift because magnets of like polarity repel.

This video is different because there is no repulsion. The frozen sapphire thing is literally locked in place. It has to do with a property of superconductors, where magnetic flux is rejected within them. The simplest way to explain it is that the magnetic field within a superconductor cannot be changed, it's just not physically possible. Introducing a magnetic field to the thing creates potential flux, so what happens is that the superconductor is locked in place. It literally cannot move against the magnetic field. That's why it's different.

It's hard to explain without diagrams, so let me know if there's questions, but that's the gist of it.
 

Formica Archonis

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Nov 13, 2009
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Earnest Cavalli said:
"Ad majorem orbis gloriam," the chants will say, and then we'll hear a reading from the Book Of Disk, specifically, Disk's First Letter to the Corinthians.
Very good! Just out of curiosity: Did you have to look it up or can you actually do declensions? (My Latin is horrific, but my Catholicism is better; that's how I managed to figure out what it said but I can't tell if it's declined right.)
 

Tiger Sora

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Aug 23, 2008
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Wizards messing with science. They're going to get one angry letter.

Damn superconductors are cool. I want them, but I'd get bored rather fast I believe.
 

Thumper17

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May 29, 2009
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Racecarlock said:
So, to recap, we've got:

Quark-gluon plasma: http://www.escapistmagazine.com/forums/read/7.286881-Large-Hadron-Collider-Creates-Incredibly-Dense-Primordial-Matter

Commercial Space Travel: http://www.escapistmagazine.com/forums/read/18.318341-Did-you-know-space-travel-is-happening

Holding anti-matter for 16 minutes: http://www.escapistmagazine.com/forums/read/7.289614-CERN-Scientists-Capture-Antimatter-For-Record-16-Minutes

And now quantum floaty magic. Not to mention computers in our pockets that are voice controlled like in star trek. It's the future, it's coming, be ready. Otherwise you'll miss it. Come on, you guys can't be jaded enough to look at this without any emotion. It's friggin floating! For fucks sake, this is UFO technology.
And they still cant cure cancer or aids.
 

Torrasque

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Aug 6, 2010
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I love superconductors. If scientists can find a way to mass produce superconductors, and keep them cooled efficiently and effectively, then all science and technology would make a jump that makes the last 20 years look like a night of heavy drinking and sociables.
 

erto101

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Aug 18, 2009
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Jibblejab said:
Sorry I had to

OT: That is brilliant, +10 internets to them. Could it have a use?
Yes. If we either learn to do this at room temp. or find a cost efficent way to keep the temp. low we would have a conductor with almost zero resistance.
 

TriGGeR_HaPPy

Another Regular. ^_^
May 22, 2008
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Cpu46 said:
It's at times like these where I want to disregard the inaccuracy of the statement and just scream at the top of my lungs

I LIVE IN THE F***ING FUTURE!!!!

I really never expected to see something like that unless it was in a movie or a hoax. The fact that this is legit and has science to back it up makes me giggle like a small child.
This was me exactly. I just... Guh.
I basically nerd-gasm'd. This is seriously cool stuff (pun not intended).
Seriously.
Just...
...
I LIVE IN THE F***ING FUTURE!!!!
 

ShindoL Shill

Truely we are the Our Avatars XI
Jul 11, 2011
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see, this is what happens when you get nerds who can use magic.
i'm lookin at you,

she is obviously to blame.
 

jprf

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May 18, 2011
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Thumper17 said:
Racecarlock said:
So, to recap, we've got:

Quark-gluon plasma: http://www.escapistmagazine.com/forums/read/7.286881-Large-Hadron-Collider-Creates-Incredibly-Dense-Primordial-Matter

Commercial Space Travel: http://www.escapistmagazine.com/forums/read/18.318341-Did-you-know-space-travel-is-happening

Holding anti-matter for 16 minutes: http://www.escapistmagazine.com/forums/read/7.289614-CERN-Scientists-Capture-Antimatter-For-Record-16-Minutes

And now quantum floaty magic. Not to mention computers in our pockets that are voice controlled like in star trek. It's the future, it's coming, be ready. Otherwise you'll miss it. Come on, you guys can't be jaded enough to look at this without any emotion. It's friggin floating! For fucks sake, this is UFO technology.
And they still cant cure cancer or aids.
They can cure a significant number of cancers and the death rate for most has been drastically lessened. As for AIDS, antiretroviral therapy has turned a certain death sentence into a relatively manageable condition. I know it was just a throwaway comment, but please don't dismiss the incredible work that's been done by scientists in medical research.

On topic: cool.
 

Unesh52

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May 27, 2010
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Agayek said:
It's hard to explain without diagrams, so let me know if there's questions, but that's the gist of it.
I have a question. If it "can't" be moved, then why can he just grab it and move it all around? How is the external force from his hand different from, say the force of gravity acting on the disc?