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Levitation techniques are useful tools in physics research. For example, levitation methods are useful for high-temperature melt property studies because they eliminate the problem of reaction with containers and allow deep undercooling of melts.
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. [2]
Spin-stabilized magnetic levitation is a phenomenon of magnetic levitation whereby a spinning magnet or array of magnets (typically as a top) is levitated via magnetic forces above another magnet or array of magnets, and stabilised by gyroscopic effect due to a spin rate that is neither too fast, nor too slow to allow for a necessary precession.
Levitation (illusion), an illusion where a magician appears to levitate a person or object; Levitation (paranormal), the claimed paranormal phenomenon of levitation, occurring without any scientific explanation; Levitation (physics), the process by which an object is suspended against gravity, in a stable position without solid physical contact
Levitation is the process by which an object is held aloft, without mechanical support, in a stable position. This category is for articles directly related to the physics and science of physical (non- illusionary ) levitation (i.e.: magnetic levitation ).
Earnshaw's theorem forbids magnetic levitation in many common situations. If the materials are not hard, Werner Braunbeck 's extension shows that materials with relative magnetic permeability greater than one ( paramagnetism ) are further destabilising, but materials with a permeability less than one ( diamagnetic materials) permit stable ...
Acoustic levitation is a method for suspending matter in air against gravity using acoustic radiation pressure from high intensity sound waves. [ 1 ] [ 2 ] It works on the same principles as acoustic tweezers by harnessing acoustic radiation forces.
Electromagnetic suspension (EMS) is the magnetic levitation of an object achieved by constantly altering the strength of a magnetic field produced by electromagnets using a feedback loop. In most cases the levitation effect is mostly due to permanent magnets as they have no power dissipation, with electromagnets only used to stabilise the effect.