Âé¶¹Éç

Use Âé¶¹Éç.com or the new Âé¶¹Éç App to listen to Âé¶¹Éç podcasts, Radio 4 and the World Service outside the UK.

Episode details

World Service,12 Nov 1998,13 mins

Available for over a year

The vibration of molecules that travel as waves through air or water is known as sound. From super sonic to decibels, a look at how to measure sound.

Programme Website
More episodes