On a windy day, the air seems to announce its presence everywhere at once: rattling windows, rustling leaves, and howling through treetops. But what we hear on a gusty day isn’t the moving air itself. You may have noticed that wind rushing down a city street sounds very different from wind sweeping across an open plain or a mountaintop. And that’s because the physics behind what we hear is more complicated — and surprising — than it may seem. |
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