This book contains interviews with physicists, biologists, and chemists who have been involved in some of the most exciting discoveries in modern scientific thought. The conversations-with Bohm, Pattee, Penrose, Rosen, Rosenfeld, Somorjai, Weizscker, Wheeler, and Nobel prizewinners Heisenberg, Dirac, and Prigogine-explore issues which have shaped modern physics and those which hint at what may form the next scientific revolution. The discussions range over a set of basic problems in physical theory and their possible solutions-the understanding of space and time, quantum and relativity theories and recent attempts to unite them-and deal with related questions in theoretical biology. The approach is non-technical, with an emphasis on the assumptions of modern science and their implications for understanding the world we live in. The book, which originated in a highly successful radio series, provides a vivid first-hand account of some of the astounding and perplexing developments in modern science, a rare overview that will intrigue the informed non-scientist and the scientist alike.