anyway, the prof was an important person for grandpapa because grandpapa could bat ideas back and forth with him on science, and it wasn't the house of commons. he could try to work out his own ideas and what he felt and understood. so, the prof was a very important person, and it is one of the things i have been interested in in this book. so now, i give you the wonderful kevin ruane, who will tell us some things about his book. [applause] kevin: thank you, edwina. is this mic ok? thank you, a very generous introduction. it is great to be back again, so thank you to the whole family for giving me this platform two years in a row. it is a great honor. i thought i would begin by saying a little bit about how i came to write this book. how i came to churchill and the bomb. big man, big subject. it really began about five years ago, when i was asked to do work by the churchill archives. that is to say the online digital repository of all of churchill's papers, which you have heard about from lawrence amongst others already in the conference. close to one million individual images, so from