A book about the past, present and future of submarines, about the main milestones in the evolution of their power plants. In a concise, popular form, in conjunction with the achievements of science and technology of different years, it tells about the most important events in the history of scuba diving, about the achievements and mistakes that generously strewn the path of pioneers in this one of the most difficult areas of technology. For schoolchildren choosing a profession, and a wide range of readers interested in the history of shipbuilding.