Schwebender Supraleiter

High-temperature superconductor (Yttrium barium copper oxide) floating in the magnetic field of Neodymium magnets. This phenomenon is called the Meißner-Ochsenfeld-Effect and was discovered in 1933. The superconductor has to be cooled with liquid nitrogen which has a temperature of 77 K or −196 °C. If it is placed in a strong magnetic field it remains in its position. It also works if you turn the track upside down.
The reason why the superconductor can move along the track is because of the fact that in this direction the magnetic field is homogeneous.

Category:

Science & Technology

Tags:

• supraleiter
• schweben
• magnet
• stickstoff
• superconductor
• liquid
• nitrogen

[sxyash69]

Alot of you are acting like scientists but its clear to see that you are just kids, your spelling is terrible lol, maybe learn English before you get into physics.

This clip is amazing, the Japs broke the speed record using Maglev technology.

[majos]

@sxyash69: which speed limit do you mean? and by the way: this video has nothing to do with magnetic levitation trains like the ones in japan or germany. this is a superconductor which levitates in a magnetic field - it doesn't need complicated control mechanisms like they use in the maglev trains.

[sxyash69]

@majos I've only just started learning about this magnetic levitation technology, im more of a business minded person, this fascinates me though. The record i were referring to were the train max speed, 579 kph, i was unaware that this was a different technology, both use magnets anyhow. Is it that the Maglev trains use more of a electrical engineering/magnetic physics approach rather than a liquid nitrogen/superconductor approach? Iv noticed the subjects are alot higher usin liquid nitrogen.

[majos]

@sxyash69 the thing is, that you can't just put a magnet above another one and it levitates. it needs really complex electronic control mechanisms to keep the magnet in balance. this is the (simplified) approach they use in maglev trains.

what you see here is much more sophisticated from the physicists point of view. the superconductor is trapped in the magnetic field. it can only move in the direction of the track because in this direction the streamlines of the field are homogeneous.

[sxyash69]

@majos i watched the Sherbrooke University demo, really impressive clip. What are the potential faults with the maglev trains as regards to safety and cost (cost as in is it cheaper or more expensive to run than normal bullet train technology?)

[majos]

@sxyash69 for this i recommend the wikipedia entry on the german maglev train transrapid - i think it's the only commercial maglev train by now.

[majos]

the difference becomes apparent when you put the track upside down. the superconductor will remain in the same distance to the track, hanging under the magnets. you can rotate the track in any direction. the superconductor will always follow the track.

i hope my explanation is good enaugh even though my english is not that good..

[tblade9]

Hexerei!!!!!!!!!!!!

Verbrennt den , der das hochgeladen hat!!!

[CHUBBLE117]

lol i know that most of you are probably German, correct me if I'm wrong but if you can understand me you will agree with me that this is simply awesome.

[MrVegster]

Actually this is pinning, not Meissner effect. The Meissner effect pushes out all the magnetic field lines and therefore the superconductor levitation is completely unstable, as if it was another magnet with opposite polarity (north-north or south-south) balancing on top of the bottom magnet. See another video of such a levitating train here: moebius dot youtube dot mosem dot eu ;-)

[Harperlarp]

I tried to invent some sort of hoverboard type thing when I was playing with my lego magnets as a kid but deemed the magnetism too unstable so discontinued my research and built cars and moon bases instead :)

[tseng61]

@sxyash69 Oh man, your comment is loaded with so much irony. It isn't spelled "alot" it is "a lot." Also, "its" is possessive, while "it's" is a contraction of "it is" or "it has."

[moosome]

Magnetic Air hockey anyone?

[ShishaQualmer]

ehm wo haste denn die ganzen magnete her? sind so viele nicht sau teuer?

[Dazuc1]

Please just one question :__

in the video it seen the disk goes clockwise without been touched, if u put the disk upside down or even the track does it change to anticlock wise direction ?

Thats a prediction from someone who doesnt believe in magnetic fields or even in mass.

tks a lot in adventage

[sxyash69]

@majos well we'll never have them because we have no money in England, only the heavyweight countries Germany, Japan, China, Dubai will have these. Fantastic breakthrough tho, deserves a nobel!