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Quantum Levitation Video for Kids

 

                                             Quantum Levitation

Quantum Levitation can be defined as a process where properties of quantum physics are used to levitate an object over a magnetic source. The magnetic field lines are trapped inside the superconductor in this process. Quantum Locking is another term for Quantum Levitation. This theory works on a concept called Meissner Effect.

What is Meissner Effect?

A superconductor in a magnetic field will always expel the magnetic field from its interior and bend the magnetic field around it.

Concept of Quantum Levitation:

When a superconductor is placed on a magnetic track, it remains above the track. It is being pushed away by the strong magnetic field of the track. It remains levitated because it tries to avoid the contact with the magnetic field. The superconductor will not stay in place. Quantum locking is something that works at this point. It happens when an external magnetic field is applied and an equally opposing magnetic field is created.

When a material is cold enough to be in the superconducting state, it becomes strongly diamagnetic. They would start repelling the magnetic force and to float in a wobbling motion. There are small magnetic channels called flux tubes. The flux tubes lock the magnetic field in all the three dimensions so that the superconductor disk remains in the position it started.

Try It Yourself:

You can coat a sapphire disk with a few microns of a superconducting ceramic. Then place it on a magnet and you can see it floating. This is the simplest way to understand the quantum levitation with a practical example.

 

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Tobin, Declan. (2019). Fun Facts for Kids about Quantum Levitation. Easy Science for Kids. Retrieved from https://easyscienceforkids.com/quantum-levitation-video-for-kids/

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