#Sound

Engineering Questions – If all the vehicles in the world were to convert to electric, would it be quieter?

How the sound of the Olympics is created – 3,600 microphones and counting

The Punishing Signal – Did Mumbai just solve the its honking problem?

NASA's recordings of 'marsquakes' let us listen to the martian heartbeat

Engineer Asier Marzo has created a sonic tractor beam … which you can build at home