Sound waves put levitation on the move
Technique transports nonmagnetic particles such as cells, water droplets and coffee grounds
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/07/mr_13-01860-large.jpg?fit=860%2C460&ssl=1)
FLOATING OBJECTS Using a platform of aluminum blocks to manipulate sound waves, researchers can move levitating objects (such as this droplet of fluorescent green dye).
Courtesy of Dimos Poulikakos