By Roald K. Wangsness
By Danny Kodicek
By M. W. Thompson
By R. I. Damper
By D. P. Woodruff (University of Warwick), T. A. Delchar (University of Warwick)
By M. Prutton (Professor of Physics, Professor of Physics, University of York)
By R. K. Rajput
By John Moore, Christopher Davis
By Paul Taunton Matthews
By Bryan Milner, Jean Martin, Peter Evans
By Mary Gribbin, John Gribbin
By R.L. Weber
By Llewellyn, Claire
By Chris Sunley, Sue Kearsey, Andrew Briggs
By Arthur E. Baillie, Andrew K. McCormick
By Adrian Watt
By BBC
By Andrew K. McCormick, Arthur E. Baillie
By Alexander Altland (Universitat zu Koeln), Jan von Delft (Ludwig-Maximilians-Universitat Munchen)
By Mike O'Neill
By Malcolm Bradley, Susan Gardner
By Jones, Mary, Tingle, Mike, Petheram, Louise, Gadd, Ken
By Emeritus Arthur Beiser
By Chris J Isham (Imperial College, UK)
By Matt Ridley
By Collins GCSE
By CGP Books
By Laurence Bergreen