01:32DiscoveryDiscoveryCERN: Physics RocksBBC World Service Duration: 26 minutes Thu 11th Sep 2008, 01:32 on BBC World Service OnlineAvailable for over a yearPhysicists Brian Cox and Brian Greene and actor Alan Alda discuss why physics is such an exciting subject.GenresFactualScience & NatureFormatsDocumentariesBrandDiscoverySeriesDiscovery: Discovery Source: BBC Online