Product Principle:

Sound waves emitted from the speaker propagate within the acrylic tube, forming standing waves. This device utilizes the interaction between the standing waves and the object to generate an upward levitation force, overcoming the object’s weight and suspending it in mid-air. When the frequency of the music changes, the nodes of the standing waves also change accordingly, causing the object to bounce up and down.

Gameplay Points:

Rotate the generator crank at a steady pace while adjusting the height of the acrylic tube to make the object inside bounce up and down in a suspended state within the tube.