By Unknown
By Nelkon, Michael, Parker, Philip
By Anon
By The Open University
By Kirk, Tim, Hodgson, Neil
By Lucas, David J.
By Kane, Joseph W., Sternheim, Morton M.
By Duffy, John Alistair
By McQuillin, F. J.
By Hart, Harold, Schuetz, Robert D.
By Fifield, F. W., Kealey, D.
By John Murray
By Paul Heiney
By Ramsden, Eileen
By ILEA Chemistry Project Team, Chemistry Project Team, ILEA
By Brown, George Ingham
By Harari, Yuval Noah
By Eric M. Rogers
By Hawking, S, Stephen W., Miller, Ron, Sagan, Carl
By Duncan, Tom
By Gribbin, John
By Zukav, Gary
By Harald Fritzsch
By Paul Davies, John Gribbin
By Hawking, Stephen, Mlodinow, Leonard
By Heard, Terry, Martin, David, Murphy, Bernard
By Marcus Du Sautoy
By Peter Atkins, Atkins, Peter
By Atkins, Peter
By Al-Khalili, Jim