Matthew Bannister on

Ray Dolby - the American engineer who invented the Dolby noise reduction systems which revolutionised our listening experience at home and in the cinema.

Wing Commander Kenneth Wallis the RAF bomber pilot who built and flew the autogyro in the James Bond film You Only Live Twice.

Frederick Pohl, the science fiction writer who also promoted the careers of many of his contemporaries. Brian Aldiss pays tribute.

And Lydia Gridneff who travelled the world as part of a circus family. Her son tells of touring Europe in a bus full of chimpanzees. Show less