Sound

Sound (iStock)

Every day we take sound for granted, whether we're listening to music, hearing birdsong or covering our ears to protect them from the noise of a pneumatic drill, but how much do we really know the physics of sound? Sound energy is formed by vibrations that ripple the area around it causing longitudinal waves that form areas of high and low pressure. These travel to your ears and vibrate the eardrum, which your brain transforms in to the beautiful melodies or obnoxious noise we recognise as sound.

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Through the Ears of the Bats

We speak to Antoine Bertin at Bluedot Festival 2016 about an audio installation that enables us to hear the world of bats and experience their incredible powers of echolocation.