David Edgerton is the Hans Rausing Professor at Imperial College London. He is the author of a sequence of groundbreaking books on twentieth-century Britain: England and the Aeroplane: An Essay on a Militant and Technological Nation (1991), Science, Technology and the British Industrial 'Decline', 1870-1970 (1996) and Warfare State: Britain, 1920-1970 (2005). He is also the author of the iconoclastic and brilliant The Shock of the Old: Technology and Global History Since 1900 (2006). His most recent book is Britain's War Machine: Weapons, Resources and Experts in the Second World War (2011).