Brian Clegg, consultant editor, read Natural Sciences, focusing on experimental physics, at Cambridge University. After developing hi-tech solutions for British Airways, he formed a creative consultancy advising clients ranging from the BBC to the Met Office. He has written for Nature, The Times and The Wall Street Journal and has lectured at Oxford and Cambridge universities and the Royal Institution. He is editor of the book review site www.popularscience.co.uk, and his publications include A Brief History of Infinity and How to Build a Time Machine.