It would also be interesting if you could have this work on satellites also.
The hard part would be keeping the thing cool.
Well, yeah; Keeping it cool is basically all there is to this
Statistics: Posted by Jeroen — October 24th, 2011, 2:53 pm
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Statistics: Posted by Znath — October 24th, 2011, 11:59 am
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It is the first time I've seen it on a track, the only think keeping it slow is the air drag.
Statistics: Posted by Dark Paladin — October 22nd, 2011, 2:34 pm
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One use I've heard of for stuff like this is total frictionless bearings.
This would work by basically having the shaft covered in high power magnets at one point.
And then the superconductors on the outside. Something like this would mean that
you could have emergency generators that run even longer without nearly as much friction.
I think the weirder part is that it maintains distance and angle perfectly.
Statistics: Posted by Znath — October 22nd, 2011, 2:11 pm
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but if you were to introduce 2 magnets that were oppositely charged. how would the superconductor react to this?
Go completely out of wack, I'd assume.
Statistics: Posted by Riptide — October 20th, 2011, 5:24 am
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Market Man6 wrote:
the superconductor creates an equally opposing magnetic field....
now what happens if you had a positive magnet on the top and a negative one on the bottom?
now what happens if you had a positive magnet on the top and a negative one on the bottom?
I'd assume the same thing. He basically did that when he flipped the glass table upside-down.
Also, I've been thinking of ways for this to apply in real life, but I can't think of anything that doesn't sound completely ridiculous.
i believe that table to have 2 rows of similarly charged magnets. these two rows create two separate, but parallel, similarly charged fields. and the superconductor is forced to center itself in the middle of the two fields. comparing this 'track' to the previous example of the single magnet where the superconductor was able to rotate on the single axis, this 'track' forces the superconductor to have free range between the two fields. this enables it to glide around the track rather than fixed around one point.
if i understand correctly, the superconductor is creating its own magnetic field around itself that will oppose the magnets field. and make it 'lock'.
but if you were to introduce 2 magnets that were oppositely charged. how would the superconductor react to this?
Statistics: Posted by Market Man6 — October 19th, 2011, 9:03 pm
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the superconductor creates an equally opposing magnetic field....
now what happens if you had a positive magnet on the top and a negative one on the bottom?
I'd assume the same thing. He basically did that when he flipped the glass table upside-down.
Also, I've been thinking of ways for this to apply in real life, but I can't think of anything that doesn't sound completely ridiculous.
Statistics: Posted by Riptide — October 19th, 2011, 8:43 pm
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Statistics: Posted by Market Man6 — October 19th, 2011, 8:29 pm
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Holy hell. o_o
Statistics: Posted by Kikori — October 19th, 2011, 7:50 pm
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Wired.com wrote:
Researchers at the school of physics and astronomy at Tel Aviv University have created a track around which a superconductor can float, thanks to the phenomenon of “quantum levitation“.
This levitation effect is explained by the Meissner effect, which describes how, when a material makes the transition from its normal to its superconducting state, it actively excludes magnetic fields from its interior, leaving only a thin layer on its surface.
When a material is in its superconducting state — which involves very low temperatures — it is strongly diamagnetic. This means that when a magnetic field is externally applied, it will create an equally opposing magnetic field, locking it in place.
A material called yttrium barium copper oxide can be turned into a superconductor by exposure to liquid nitrogen — which makes it one of the highest-temperature superconductors.
In the video it appears that a puck of yttrium barium copper oxide cooled by liquid nitrogen is repelling the magnets embedded on the handheld device. It also shows that the angle of the magnet can be locked in a magnetic field. Later in the video the puck can be seen to zoom round a circular track of magnets, in the same way that Maglev high-speed trains do.
Statistics: Posted by The123king — October 19th, 2011, 2:56 pm
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