By Martin Ford
By Rick Archbold, Ken Marschall
By Jonas Ljungberg
By Matthew Ball
By Keith Kirby (Oxford University, UK), Charles Watkins (School of Geography, University of Nottingham
By Colin Emmins
By William L. Bernstein
By Walter Isaacson
By Lisa Jardine
By Tim James
By Dan Cruickshank, Steven Brindle
By Sue Colledge, James Conolly
By Erik C. Banks (Wright State University, Ohio)
By J. Garth Watson
By Allan J. McDonald, James R. Hansen
By L T C Rolt, Neil Cossons
By Anton Gill
By R. M. Clarke, Anders Clausager
By Paul Kennedy
By Katsuhiko Tokunaga
By David Watkins, John Wilson
By Jeffrey Quill
By Malcolm Gladwell
By David C. Cassidy
By I. Bernard Cohen (Harvard University)
By Richard Morris
By Cecil Lewis
By Basil Mahon