Sonic Tractor Beams are reality outside the lab!
Yes! Sonic Tractor Beams are reality outside the lab! More and more we are seeing the awesome harnessing of sound in science which allows us to control particles and combine items without any physical interaction. The device uses 64 miniature speakers to generate high-amplitude, ultrasonic sound waves. These waves create an "acoustic hologram"
Here is a video on the art and science of levitation with sound: