An experiment with off-the-shelf components uses a magnet glued to the end of a rotary multitool. Its rotation causes a second magnet to levitate millimeters away from the first one.[1]
Suspension of objects by magnetic force.
This article is about the physical phenomenon. For the form of transportation, see Maglev.
Magnetic levitation can be stabilised using different techniques; here rotation (spin) is used
Magnetic levitation (maglev) or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic force is used to counteract the effects of the gravitational force and any other forces.
The two primary issues involved in magnetic levitation are lifting forces: providing an upward force sufficient to counteract gravity, and stability: ensuring that the system does not spontaneously slide or flip into a configuration where the lift is neutralized.
Magnetic levitation is used for maglev trains, contactless melting, magnetic bearings, and for product display purposes.
^Hermansen, Joachim Marco; Laust Durhuus, Frederik; Frandsen, Cathrine; Beleggia, Marco; R.H. Bahl, Christian; Bjørk, Rasmus (13 October 2023). "Magnetic levitation by rotation". Phys. Rev. Appl. 20 (4): 044036–044051. arXiv:2305.00812. Bibcode:2023PhRvP..20d4036H. doi:10.1103/PhysRevApplied.20.044036. S2CID 258426320. Retrieved 23 October 2023.
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Magneticlevitation (maglev) or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic force...
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