A wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air. A clap of the hands. We recorded the hand clap in different rooms and situations and visualized the power of sound waves under ideal circumstances using the software Processing. The simulation shows how sound waves are reflected on physical walls and thus intersect one another, creating a kaleidoscope effect. Sound waves travel at a speed of 340 m/s in air.