At last I've got it - thanks to Chown's excellent and concise book. Happily, he realises most readers won't have a thorough grounding in math, and introduces the universe, quantum theory and relativity, with characteristic verve. His highly original metaphors and use of analogy ensure the layperson moves effortlessly through the text, a real page-turner. I've given copies to my nephews who are studying physics at GCSE level, as a counter to the usual dry texts they find a chore. We've all found this book far more accessible than other `popularised' books and superficial whizz bang TV progs on the subject that merely left us bewildered. Given the current level of science illiteracy, especially around these areas, this excellent introduction should improve our grasp of some of the major developments in physics over the last century. There is a useful glossary and some good suggestions for further reading.