30/30 Silence has become an ever more desirable state. But when we have it, is it what we want?
29/30 Prof Hendy travels to Accra, a city so loud that visitors describe it as a visceral shock.
28/30 David Hendy considers how music has been used to soothe, cheer, and inspire us.
27/30 Radio seemed like magic to begin with, then the Nazis exploited its darker powers.
26/30 Soldiers in WW1 experienced a sonic onslaught. Prof Hendy considers life under bombardment
25/30 How recording technology made it possible to catch the fugitive moment.
24/30 Professor David Hendy follows the writer Thomas Carlyle's grumpy attempts at soundproofing
23/30 Professor David Hendy explores how the Victorians learned to listen all over again.
22/30 Medicine's listening revolution in the 19th century with the discovery of the stethoscope.
21/30 Prof David Hendy explores how the sounds of nature gave way to the industrial revolution.