The application of modern technology and instrumentation to astronomy is of central importance to the development of the science. This book responds to a widespread need by providing a detailed, well-written survey of the latest advances in the main areas of astronomical technology--optical and radio high angular resolution, optical techniques, detector design, data handling, and computers in astronomy. The contributions derive from a prestigious scientific gathering at the Royal Greenwich Observatory to celebrate the 70th birthday of Robert Hanbury Brown. With numerous diagrams and photographs, this book will be a valuable source of information for astronomers everywhere.