Singing Sand Dunes

Singing sand, also called whistling sand or barking sand, is sand that produces sound. The wind blowing across the dunes or stepping on the sand may be the source of the sound emission. Nearly 450 Hz appears to be the frequency that is most frequently transmitted.

There is still disagreement among physicists despite the fact that scientists have just lately started to comprehend how sound is produced. Sand particles roll into each other and collide as they go together down the dune. Every jolt produces a shock. When all of the little shocks are combined, the sound becomes audible. The dune’s face functions as a large loudspeaker. The size of the sand grains influences the various melodies that each sand dune sings. The frequencies in the song are determined by grain size, and the humming sound is created by the coordinated movement of these grains.