Watch live as the winners of the 2005 Aventis Prizes for Science Books are announced at the glittering award ceremony at the Royal Society. There are two Prizes: The Junior Prize, which is given to the best book written for under-14s, and the General Prize, for the best book written for a more general readership. Each prize is worth £10,000 to the winning author and £1,000 to the author of each of the shortlisted book, The webcast commences at 7pm GMT on 12 May 2005