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.
No, we aren’t suddenly a (poorly-edited) website promising novel ways to listen to Lennon and McCartney, but instead a study into the science of bioacoustics and some of Britain’s quietest pond dwellers.
The bigger a drum’s body, the deeper is its sound – it’s all about the sound box.