Ultrasonic sounds very high-tech ... Northwest Enterprises sells a liquid cleaning solution on Amazon that is specifically designed for carburetors, fuel injectors, and other auto parts.

Ultrasonic cleaners have been around since the 50s and are used to clean all sorts of oddly-shaped or specialty objects by creating cavitation within a liquid that allows the surface of the object ...

Ultrasonic levitation — the practice of creating a standing wave between two ultrasonic sources and positioning lightweight objects such that they can float in the pressure minimums between them ...

THE solid–liquid transition, a co-operative phenomenon ... Experimental evidence for this is desirable. Ultrasonic waves, although much lower in frequency, have the same nature as lattice ...