Valleytronics — exploiting a system’s pseudospin degree of freedom — is being increasingly explored in sonic crystals. Now, valley transport of sound is reported for a macroscopic triangular ...

The “Helmholtz resonator” concept explains the frequencies of sound produced by clapping the hands together in different configurations.

Students learn how sound waves are produced and transmitted. Students learn how sound waves are produced and transmitted and how frequency is related to pitch. The speeds of sound in different ...

Physicists propose a new maximum rate that sound waves can travel under conditions normally found on Earth — 36 kilometers per second.