20:32DiscoveryRememberance of Smells PastBBC World Service Duration: 26 minutes Wed 20th May 2009, 20:32 on BBC World Service OnlineAvailable for over a yearHow do smells impact on memories and emotions? Science is unraveling how a whiff of perfume or a newly mown lawn can offer us a free ticket back to our childhood.GenresFactualScience & NatureFormatsDocumentariesBrandDiscovery Source: BBC Online