By Adam Rutherford
By Brenda Maddox
By Michael Friedman
By Frank Close (Professor of Theoretical Physics and Fellow of Exeter College, University of Oxford)
By Nick Mann, Theodore Gray
By Dawkins, Richard, Richard Dawkins
By Carl B. Boyer, Uta C. Merzbach, U. Merzbach
By Frank J. Swetz
By Keith Tutt
By Wilbert Reimer, Luetta Reimer
By Richard Gillings
By Peter Marren
By Adam Hart-Davis, Paul Bader
By david-bodanis
By Kristin Johnson (Assistant Professor, University of Puget Sound)
By Ian Mortimer
By J.E.D. Williams
By Chris Gosden
By Alan W. Hirshfeld
By Sir David Attenborough
By Raymond Lamont-Brown
By Lliffe, Robert
By Professor Brian Cox, Andrew Cohen, Cox, Professor Brian, Cohen, Andrew
By Lorraine Daston, Fernando Vidal
By Keith J. Laidler
By Alison Bashford
By Samantha Weinberg
By Anthony Grafton
By Roma Agrawal
By Adam Frank, Marcelo Gleiser