Live on location at the Cambridge Science Centre, Chris Smith, Dave Ansell, Ginny Smith and guests Rod Jones, an atmospheric chemist, Margaret Stanley, an HPV cancer researcher, and Caroline Goddard, jet engine metallurgist, pit their wits against the assembled public. Plus Dave and Ginny make crisp packet fireworks, prove you can't be heard screaming in space and make an elastic-band-powered fridge... Like this podcast? Please help us by supporting the Naked Scientists