9 Methods of Magnetic Levitation | Magnet Tricks

a spinning magnets its levitated by a magnetic repulsion above another magnet and stabilized by gyroscopic effect spinning top acts as a gyroscope and prevents its toroidal magnetic field from fully aligning itself in the same direction as that of the supporting opposing field of the magnetic base [Music] diamagnetism refers to weak repulsion between a diamagnetic material and magnet regardless of its poles a second magnet can be used at a fixed a distance to offset some of the magnets weight it is then possible for the diamagnetic effects to support the remaining mass of the magnet and so achieve stable and passive levitation [Music] paralytic graphite is the most diamagnetic substance known to man [Music] a thin enough piece of pyrolytic graphite will levitate over a magnetic array the diamagnetic repulsion is greater than the weight of the graphite the amount of lift is proportional to the density of the magnetic flux around the graphite in an array this can be prominent right at the edges where the north and south are making contact this also acts to stabilize the graphite keeping the piece from falling of the array assuming the array and magnets are appropriate sized this effect can also be used to create a track that the graphite can follow [Music] they're magnetic opposition and suspension levitation can be combined this form of diamagnetic levitation can hold more weight than just a diamagnetic suspension or opposition a levitation [Music] the levitation is achieved by cooperative action between large attracting ferrite disk magnets and repelling electromagnets that are controlled by a feedback loop which continuously adjusts the electromagnets in relation to the levitating at magnets position it is possible to levitate a magnet in a proximity of a conductive material like copper or aluminum by manually adjusting another magnet above the levitation is made possible by a B currents those currents produce their own magnetic field that resists movement of the magnets this dampens the system slung the movement of the suspended magnet using a levitation coil a conductive object can be levitated in a magnetic field depending on the metal and power setting you can even boil metals in mid-air aluminum will levitate and melt easily at 1 to 1.5 kilowatts of input power when a magnet is spun a certain rpm rate it is possible to levitate another magnet under it the spinning magnet attached to a power tool Alex at the levitating magnet at a distance of about 5 to 10 millimeters the levitation gap can be adjusted by changing the rotation speed faster rpm means a smaller levitation gap the tractor beam effect is also a much tighter with higher rpm copper isn't necessary for the effect but it helps to stabilize the magnet [Music] when this yttrium barium copper oxide POC is chilled down below its critical temperature with liquid nitrogen it becomes a superconductor and magnetic field lines are expelled from its body magnets is able to levitate over the superconductor but it is held in place only weakly and this superconductor is likely different there are small impurities on its surface which allows magnetic field lines to run through them when cooled down to its superconducting temperature those field lines become trapped this locks the magnet in space above the superconductor the magnets and the superconductor don't want to move relative to each other you

Channel: Magnet Tricks

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Keywords: Magnet Tricks, magnetic levitation, collection of different magnetic levitation, magnetic levitation compilation, spin-stabilized magnetic levitation, diamagnetic opposition levitation, diamagnetic suspension levitation, electromagnetic levitation, levitation coil, electromagnetic induction levitation, magnetic tractor beam, Meissner effect, flux pinning

Id: NateAKNfzrE

Length: 5min 52sec (352 seconds)

Published: Sat Jan 18 2020