By Hendrik F. Hameka ( University of Pennsylvania, Berwyn, Pa, USA)
By Leon M. Lederman, Dick Teresi
By R L Goodstein
By Murray Gell-Mann
By Hilary Putnam
By J.L. Smyrl
By Albert Einstein
By I. S. Grant, W. R. Phillips, Grant, I. S., Phillips, W. R.
By Hey, Tony, Walters, Patrick
By Bruce Cairncross
By Barry Cooper
By J. C. P. Schwarz
By Leslie E. Orgel
By Peter Sykes
By Gordon M. Barrow
By W. E. Addison
By H.T. Openshaw
By Anne Goldsworthy, Rod Watson, Valerie Wood-Robinson, John Sams, Chris Smith
By Charles Wheelan
By Hawking, Stephen
By Cox, Brian, Forshaw, Jeff
By Frederick Gravetter (State University of New York, Brockport), Larry Wallnau (State University of New York
By Brysbaert, Marc
By Ramachandran, V. S.
By Rand R. Wilcox (University of Southern California, USA)
By John Beale
By Morton Hunt
By Alexander Hellemans, bryan bunch
By Athel Cornish-Bowden, Christopher W. Wharton
By Cotton, F. Albert, Wilkinson, Geoffrey, Gaus, Paul L.