Question

What is levitation ?

Answer 1

Levitation (from Latin levitas "lightness")[1] is the process by which an object is suspended by a physical force against gravity, in a stable position without solid physical contact. A number of different techniques have been developed to levitate matter, including the aerodynamic, magnetic, acoustic, electromagnetic, electrostatic, gas film, and optical levitation methods.
Source: http://en.wikipedia.org/wiki/Levitation