[Julius Kramer] tried his hand at acoustic levitation, and decided to share his build. The build relies on an astounding number of ultrasonic transducers – 72, in fact. The device operates at 40 ...

Don’t blame us for the click-baity titles in the source articles about this handheld “acoustic tractor beam”. You can see why the popular press tarted this one up a bit, even at the risk of ...