There are many people to whom I owe a debt of gratitude for helping to make the production of this book possible. I would firstly like to thank my students for their review of and contributions towards the contents of this book.Their ques- tioning and enthusiasm for the subject have forced me to deepen my understand- ing of physics. I also wish to thank my former and present colleagues and friends, Pat Doyle, Steve Gibbons, Michael Grehan and Dermot Ryder, for all their support and advice over the years.Thanks also to all the staff in Gill and Macmillan, in par- ticular Hubert Mahony and Anthony Murray; and Tess Tattersall. Finally, I owe the biggest debt of gratitude to my family;my parents Paul and Breda,my children Amy and Matthew and especially my wife Deborah, without your tireless support, encouragement and patience, this book would never have reached completion.
Andrew Kenny Institute of Education Leeson Street Dublin 2
