Harry Cliff is a particle physicist at the University of Cambridge working on the Large Hadron Collider beauty (LHCb) experiment. He is a member of an international team of around 1,400 physicists, engineers, and computer scientists who are using LHCb to study the basic building blocks of our universe, in search of answers to some of the biggest questions in modern physics. From 2012 to 2018 he held a joint post between Cambridge and the Science Museum in London. His popular science books are How to Make an Apple Pie from Scratch and Space Oddities.