The world we live in is made up of fundamental particles interacting through the fundamental forces. One of the greatest aims of theoretical physics is to describe all of these forces and particles in one all-encompassing theory. Something called quantum field theory has been hugely successful in this context, but what exactly is it? And does it answer all the questions?
Based on interviews with some of the main players in theoretical physics, this series of accessible articles traces the history of quantum field theory, from its inception at the beginning of the twentieth century to the tantalising questions that are still open today. It's a story of pain and triumph, hardship and success. Happy reading!