Not so, if you use a pair of specialised ultrasonic transducer arrays to move the air instead! (Video, embedded below) Three banks of thrusters provide a 180 degree steerable net force Details are ...

ultrasonic levitation is a process by which two or more ultrasonic transducers are set opposite to each other and excited in such a way as to create a standing wave between them. The sound is ...

The MVUS01 ultrasound transducer interface is the first generation of high-voltage (HV) ultrasound ASICs intended for portable medical imaging probes and other markets. The chip supports pulsing ...