Why do we clap? Becky Milligan uncovers how the highly contagious nature of applause has been exploited by everyone from Roman emperors to today's politicians. Show more
Discover 11,128,835 listings and 280,062 playable programmes from the BBC
Why do we clap? Becky Milligan uncovers how the highly contagious nature of applause has been exploited by everyone from Roman emperors to today's politicians. Show more