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.
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Latest
Science Focus Podcast Is gene editing inspiring or terrifying?
