Professor jim Al-Khalili of Surrey University is the man the BBC turns to when it wants someone sensible to talk about physical science. On radio and TV, with a minimum of histrionics, he discusses, enthuses and explains. This week, though, he met his match.The Secrets of Quantum Physics (9 December) began with the professor standing on a bridge, with water flowing below, and talking about the old, predictable science of the Newtonian universe. His task in this programme was to explain the new – or ­relatively new – world of subatomic physics for a lay audience; and, frankly, he was not in with a chance. It was relatively easy to talk us through the history. So we heard about Max Planck doing research in a light-bulb factory, and Niels Bohr in Copenhagen, and John Bell, wh