JOEL N SHURKIN is Science Writer Emeritus at Stanford University, USA, where he has written and taught for many years He covered the moon landings for Reuters, served ten years as Science Writer at the Philadelphia Inquirer and was on the team that won a Pulitzer Prize for covering Three Mile Island, among many other awards He has written nine books including Terman s Kids Little, Brown about the study of gifted students, Invisible Fire , on the eradication of smallpox, a science fiction novel called The Helix Norton and most recently A Consumer s Guide to Psychotherapy OUP His definitive history of the computer, Engines of the Mind Norton , is in multiple editions in several languages