20:32Science In Action13/08/2010BBC World Service Duration: 28 minutes Fri 13th Aug 2010, 20:32 on BBC World Service OnlineAvailable for over a yearListen nowEvidence of very early tool use in human ancestors; Birth of the WWW; Volunteer computers find rare pulsar; Arctic ice melt; Nanowires inserted into individual cellsGenresFactualScience & NatureBrandScience In Action Source: BBC Online