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[Techspot] Quantum Levitation Demonstration - Page 5

post #41 of 61
I can see this being integrated into vehicles for faster transit systems.
   
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post #42 of 61
Dude. Two words: Pod Racing.
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post #43 of 61
They really need to tape a bottle rocket to it!
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post #44 of 61
Quote:
Originally Posted by SIMPSONATOR View Post
Dude. Two words: Pod Racing.
This. cant wait
post #45 of 61
Let's think outside of 2 dimensions, what happens if we make a sphere of magnets and put one of these in the sphere? It wouldn't just sit in the middle but if we made a superconductor able to move and travel on it's own (ie, on a robot of some sort)....I don't know, I feel like there's something there worth looking into but I can't put my finger on what.
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post #46 of 61
Quote:
Originally Posted by Black Magix View Post
Let's think outside of 2 dimensions, what happens if we make a sphere of magnets and put one of these in the sphere? It wouldn't just sit in the middle but if we made a superconductor able to move and travel on it's own (ie, on a robot of some sort)....I don't know, I feel like there's something there worth looking into but I can't put my finger on what.
So you've got a superconductor levitating inside a sphere of magents... Now what?

It's funny that people are freaking out so much about this video. It's all over the news and internet. This is old stuff. I saw this in high school science class like 11 years ago...

Here is a youtube video from 2006 showing the same phenomenon. Except in this video the magnet is levitating over the superconductor. At the end of the video you can see the effect stop as the superconductor warms up.

You can also achieve something similar with a strong magnet and a copper pipe. The magnet doesn't levitate because the copper isn't a superconductor but it still falls very slowly. It's the same concept.


Quote:
Originally Posted by jdobbs86 View Post
can i get one?
Quote:
Originally Posted by darksuffering View Post
looks very interesting, someone make a diy
Here is a kit for one. You will need your own LN2 though.

http://sciencekit.com/superconductiv...t/p/IG0024304/
Edited by Epitope - 10/19/11 at 7:14am
    
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post #47 of 61
No more roads in the future? Sounds great
    
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post #48 of 61
Quote:
Originally Posted by Epitope View Post
So you've got a superconductor levitating inside a sphere of magents... Now what?

It's funny that people are freaking out so much about this video. It's all over the news and internet. This is old stuff. I saw this in high school science class like 11 years ago...

Here is a youtube video from 2006 showing the same phenomenon. Except in this video the magnet is levitating over the superconductor.

In that first video, the magnet is most definitely not "locked" so no, it's not the same thing.

This is also magnet levitation. Also not locked:
 
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post #49 of 61
Quote:
Originally Posted by u3b3rg33k View Post
In that first video, the magnet is most definitely not "locked" so no, it's not the same thing.

This is also magnet levitation. Also not locked:
http://www.youtube.com/watch?v=xLFaASn37Rg
Not the same thing at all. The video you show is not due to a magnet inducing electric fields in a superconductor. It is just normal magnetic levitation.

The video I showed only has 1 magnet involved. Yes the superconductor in this new video is more fancy than the video I showed. However, the same concepts still apply. It's nothing new. The superconductor is just more fancy.

It's a strong magnet inducing a electric current in a super conductor. That current creates a magnetic field that opposes the magnet's magnetic field.
    
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post #50 of 61
Quote:
Originally Posted by Epitope View Post
So you've got a superconductor levitating inside a sphere of magents... Now what?

It's funny that people are freaking out so much about this video. It's all over the news and internet. This is old stuff. I saw this in high school science class like 11 years ago...

Here is a youtube video from 2006 showing the same phenomenon. Except in this video the magnet is levitating over the superconductor. At the end of the video you can see the effect stop as the superconductor warms up.
http://www.youtube.com/watch?v=nWTSzBWEsms
Not the same thing by any means. It's similar, in that you need a superconductor, and that it's interacting with the magnetic fields of a magnetic object, however beyond that it's totally different. In the "historical" depiction, the magnetic fields in the superconductor induced by the bulk magnet oppose the magnetic fields of the bulk magnet and repel the bulk magnet. The bulk magnet can have only one preferred orientation above the supercooled superconductor--if you move the magnet, it reorients against the superconductor, but is still being repelled--there is a net opposing force between the two bodies, and the magnet only seems to hover because that's the equilibrium point between the forces induced by the magnetic fields, and by the force due to gravity. In the new breakthrough, the superconductor is combined, amongst other things, with a sapphire crystal layer, which allows a small amount of the magnetic fields from the bulk magnet to permeate through the superconductor, allowing what the person in the video described to be "locking." The superconductor is no longer hovering due to an equilibrium between magnetic and gravitational forces--it is held in place entirely by magnetic forces (or rather, the gravitational force becomes a small contribution). It's very very different.

Quote:
Originally Posted by Epitope View Post
You can also achieve something similar with a strong magnet and a copper pipe. The magnet doesn't levitate because the copper isn't a superconductor but it still falls very slowly. It's the same concept.

http://www.youtube.com/watch?v=E97CYWlALEs
Also different--that's just induced eddy currents causing localized magnetic fields that opposed the permanent magnet. Just because copper is not considered ferromagnetic doesn't mean it can't have induced magnetic fields for periods of time when a moving magnetic field is present.
    
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