Theoretical Physics is a veritable toolbox for everyday use in problem solving, homework, examinations, and practical applications of physics, it provides quick and easy access to a wealth of information Including not only the fundamental formulas of physics but also a wide variety of experimental methods used in practice.The book is compiled by professional scientists, engineers, and lecturers who are experts in the day-to-day use of physics. It covers topics from classical mechanics to elementary particles, electric circuits to error analysis. It contains six parts and 49 chapters. Each chapter of the book contains al the important concepts, formulas, rules and theorems - numerous examples and practical applications - suggestions for problem solving, hints, and cross references - measurement techniques and important sources of errors - numerous tables of standard values and material properties. This book is an invaluable tool for college and graduate students and researchers and practitioners In all fields of engineering and natural science.