The Fluid Dynamics Making Sahara Sand Dunes Sing Like Giant Subwoofers
Deep in the hyper-arid regions of the Sahara, the Gobi, and the Mojave, an immense, low-frequency rumble occasionally shatters the silence of the desert. The sound, often compared to the hum of a propeller plane, the drone of a cello, or a heavy bass drop, can reach volumes of up to 105 decibels and ...