How Bizarre Physics

Levitating objects with sound

UP IN THE AIR  Objects can levitate and move up and down, left and right and back and forth when influenced by sound waves that researchers manipulate in an array of speakers, such as the one shown.

Yoichi Ochiai/Univ. of Tokyo 

By Andrew Grant

- More than 2 years ago

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Step into Jun Rekimoto’s lab at the University of Tokyo and you might see a screw floating through the air.