Acknowledgements
The authors and publishers acknowledge the following sources of copyright material and are grateful
for the permissions granted. While every effort has been made, it has not always been possible to
identify the sources of all the material used, or to trace all copyright holders. If any omissions are
brought to our notice, we will be happy to include the appropriate acknowledgements on reprinting.
Artwork illustrations throughout © Cambridge University Press
The chapter on Nature of Science was prepared by Dr. Peter Hoeben.
The publisher would like to thank Leigh Byrne of Cambridge House Grammar School, Ballymena, Northern Ireland
for reviewing the content of this second edition.
The publisher would like to thank Caroline Ahmed, Chris Martin and Roger Woodward to their contribution to this
material.
Cover, Leigh Prather/Shutterstock; pp. 3, 454 Martyn F. Chillmaid/SPL; p. 60 Andrew Brookes, National Physical
Laboratory/SPL; p. 103 Tony Craddock/SPL; p. 161 Photoshot Holdings Ltd/Alamy; p. 241t Doug Steley – C/Alamy;
p. 241b Tom Wood/Alamy; p. 302 Emilio Segre Visual Archives/American Institute of Physics/SPL; p. 308 Geoff Jones;
p. 321t Maximilian Stock Ltd/SPL; p. 321b Michael McCoy/SPL; p. 393l Simon Fraser/SPL; p. 321b Mark Leach/
Alamy; p. 393l catnap/Alamy; p. 393r David Nunuk/SPL; p. 411 Jorgen Udvang/Alamy; p. 438 Stephen Giardin/
Alamy; pp. 447, 453b Cordelia Molloy/SPL; 453t Roger Job/Reporters/SPL
Key
l = left, r = right, t = top, b = bottom, c = centre
SPL = Science Photo Library
ACKNOWLEDGEMENTS 593