Paradox: The nine greatest enigmas in science

Throughout history, science has set out to answer the most puzzling of questions: Can the second law of thermodynamics be broken? Do we have free will? Is time travel possible? Jim Al-Khalili presents his favourite scientific conundrums, all of which have famously been referred to as paradoxes, but which turn out not to be paradoxes at all. Schrödinger’s cat anyone? For more information and to book visit rigb.org.