"When medieval alchemists staged spectacular stunts in front of royalty they never revealed the secrets of their mystical potions and fire-breathing creations. Today's chemists can perform equally impressive feats, but they do so to explain and explore the extreme frontiers of our material world.
Dr Peter Wothers is the Modern Alchemist. In this year's Christmas Lectures he will unpick the chemistry of the world around us - looking at Air, Water and Earth - three of the original ancient Greek 'elements' that tantalised alchemists for centuries."
