What makes levitation possible?

Levitation is accomplished by providing an upward force that counteracts the pull of gravity (in relation to gravity on earth), plus a smaller stabilizing force that pushes the object toward a home position whenever it is a small distance away from that home position.



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Whether an object will or will not levitate in a magnetic field B is defined by the balance between the magnetic force F = M?B and gravity mg = ?V g where ? is the material density, V is the volume and g = 9.8m/s2. The magnetic moment M = (?/ µ0)VB so that F = (?/µ0)BV?B = (?/2µ0)V?B2.

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Electrostatic levitation is the process of using an electric field to levitate a charged object and counteract the effects of gravity.

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