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Usain Bolt powered through the 100m sprint final at the Olympic stadium setting a new record for the Games. We hear from the Jamaican journalist who recognised Bolt's talent as a boy and get more reaction from around the world.

Screenwriter and film director, Walter Bernstein worked with Marilyn Monroe on her last film; "Something Got To Give". The film was never finished. 50 years after her death we talked to Walter about what working with Marilyn was like as her career and life came to a sudden end.

Louis Armstrong is the focus of tonight's visit to the Pacifica Archive and we get to hear rare archive recordings of 'Satchmo'.

NASA's Curiosity mission is one of the topics in tonight's edition of the Naked Scientists and we hear from the Jet Propulsion Lab in Pasadena as the landing of the rover becomes imminent.

And we plug in our new Technology phone-in to see if the "blinkenlights" are working properly.