Why do some buildings hum in high winds?

Skyscrapers have been known to make some interesting sounds. 

26th July 2017
Why do some buildings hum in high winds? (Getty)

Asked by: Natasha Jenkins, London

When the wind blows across a building with recesses, louvres or other architectural features, it can start to ‘hum’, like someone blowing across the top of a bottle or a reed.

For example, the 169m-tall Beetham Tower in Manchester makes a note just below middle C. To cure the noise, engineers have to make alterations to the mass and shape of the features that are causing the problem.

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