How come we can't hear people talking next to us when we're in the sea? A puzzling question lands you in the wondrous world of sound. Have hands-on fun by making a basic phone, and get to know Guglielmo Marconi, a physicist and inventor - 'the father of radio'. The place to go to answer all your science-related questions - it's the One Stop Science Shop. Do-it-yourself experiments, a hologram entry phone, and fun stories about great scientists help visiting kids to understand some of the trickiest principles of science.