Levitating Magnetism: Understanding the Science Behind Magnetic Levitation

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In summary, the conversation discusses the phenomenon of levitation using superconducting material and magnetism. The liquid gas mentioned is most likely a coolant used to maintain the superconductor's low temperature. It is possible to levitate objects using superconductors and magnets, and it has been demonstrated with various objects such as frogs and spiders. The discussion also touches on the concept that all objects have some level of magnetic potential.
  • #1
Selnex
I have seen what I seem to remember a disc made of super conducting material levitating over a substance I seem to remember as some form of liquid gas. Is there anyone who could please clue me into what I was observing and how it operates? Does what I observed somehow relate to opposing forces of magnetic poles or some other aspect of magnetism.

Also concerning levitation and magnetism, I have seen a scientific documentary with the subject matter of magnetism. It showed how with enough energy anything could be magnetized. A spider, magnetized apparently, levitated and was floating around within a small area that was encased in circle of what appeared to be some type of metallic material. Can anyone please explain to me what it means or how it is so that any object, using enough energy can be essentially turned into a magnet and how it occurred that these normally non-magnetic objects could be floating.
 
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  • #2
Hi,
You most likely saw a superconducting disk with a small magnet floating above the disk. A superconductor does not have any magnetic field inside of it (well to a good approximation). The magnetic field from the small magnet can't penatrate into the superconductor. There is a force expelling the magnetic field (Pushing the magnet up) if this force is larger than gravity then the magnet floats above the SC disk.

You can't turn anything into a magnet. I've seen frog and bees levitating, but I can't remember how this was done. Magnetic fields are porduced inside the frogs and other animals. Now if the frog is light enough these fields might be large enough to levitate the frog. Or you might be able to coat the frog with a very thin layer of magnetic material causing it to be levitated. But this method might get you into trouble with animal cruelty people.

JMD
 
  • #3
Was the "liquid gas" that you saw giving off a great deal of steam or fog? That would make it almost certain that what you saw was, as nbo10 stated, a superconductor. More specifically, a superconducting electromagnet. If that is the case, then the liquid itself was not generating the magnetic field. It was merely being used as a coolant. Superconductors only function at very cold temperatures, and typically use liquid helium to stay frosty.

You can get some good information, and a diagram that may be of the device you saw http://cseserv.engr.scu.edu/nquinn/ENGR300Winter2001/researchprojects/DRummler/RUMMLER-SUPERCONDUCTING-FINAL.html [Broken]

I saw the show with the floating frogs, spiders, plastic Mickey Mouse, etc., and I believe the point was not that anything can be made into a magnet, but rather everything has some magnetic potential. All objects that are made of atoms have electrons in them and, given a strong enough magnetic field, anything will levitate.
 
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  • #4
Yeah I saw that one too.

I read that the magnet both floated and spun around because the super cooled metal generated large EMF's
 
  • #5
You have to start the magnet spinning and it will continue to spin for quite some time, because the friction is very low. EMF is produced on the surface of the SC but not in interior, to repel the magetic field from the magnet.

JMD
 

What is magnetic levitation?

Magnetic levitation is a scientific phenomenon in which an object is suspended in mid-air using magnetic force. This is achieved by using the repelling force between two magnets with opposite poles facing each other.

How does magnetic levitation work?

Magnetic levitation works by using magnetic fields to push and pull objects, creating a balance between the force of gravity and the repelling force of the magnets. This allows objects to float or be suspended in mid-air without any physical support.

What are the real-life applications of magnetic levitation?

Magnetic levitation has a wide range of applications, including high-speed trains, magnetic bearings in machinery, and magnetic levitation transportation systems. It is also used in experiments to study the effects of gravity on objects.

What are the benefits of using magnetic levitation?

Magnetic levitation has several benefits, including reduced friction, increased stability, and minimal wear and tear on moving parts. It also allows for efficient and smooth movement, making it a popular choice for transportation systems.

What are the limitations of magnetic levitation?

One of the main limitations of magnetic levitation is the high cost of implementing the technology. It also requires a significant amount of energy to maintain the magnetic field, and it is limited to objects that are magnetic or can be magnetized.

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