Using sound to get objects to float works well if a single particle is levitated, but it causes multiple particles to collapse into a clump in mid-air. Physicists at the Institute of Science and ...

A simple stream of water somehow holds a styrofoam ball perfectly in place, creating a strange and stable levitation effect.

Levitation as a technique generally refers to engineered methods for stably suspending an object against gravity without mechanical contact, using physical forces such as electromagnetic, ...