Episode 12 of In Search of Giants: Dr Brian Cox takes us on a journey through the history of particle physics. In this episode we find out about Quantum Electrodynamics, one of the most succesful theories in the history of science, and how it led to the idea of "force-carrying" particles. This film is part of a series originally broadcast on Teachers' TV (www.teachers.tv The series was made with the support of The Science and Technology Facilities Council (www.scitech.ac.uk). www.lhc.ac.uk ...