Sand dunes are a spectacular feature of some of the world’s driest landscapes, but did you know that these mountains of sand can also be heard as well as seen?
So called singing or booming sand dunes emit a low-pitched droning or rumbling sound that can be heard for miles around. This phenomenon baffled scientists for decades, but it seems to be sand avalanches that are responsible. Find out how and hear the dunes in acton by watching the video below.
Discover more of the world’s weirdest weather in Issue 69 of How It Works magazine, on sale 5 February.
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