The late twentieth century is undoubtedly the age of technology. Each technological development leads to more sophisticated devices and further scientific advances. Because of the pace of change, it is difficult to obtain a broad overview of the way fundamental science is linked to its everyday applications. Principles of Modern Technology describes the physical principles on which modern technology is based. Four primary areas have been singled out: computers and microelectronics, communications, nuclear energy and space flight. Each topic is treated in a way that gives the reader an insight into the underlying physics which makes the technology possible as well as the orders of magnitude involved. Based on a course taught at the University of Rochester, the book will be useful both as a textbook for courses in applied physics and engineering and as a reference book. It will be of interest to undergraduates taking introductory physics courses and anyone interested in modern technology.