Ultrasonic levitation is by now a familiar trick: one or more ultrasonic transducers create a standing wave, and small objects can be held in the nodes of this standing wave. With a sufficiently large ...
Ultrasonic levitation is by now a familiar trick: one or more ultrasonic transducers create a standing wave, and small ...
The idea of levitating off the ground has been a staple of science fiction dreams and human imagination since time immemorial. While we don't have our hoverboards just yet, we do have the very real ...