Relativity: The Essentials

The theory of relativity comprises two interconnected theories, namely, special relativity and general relativity. Special relativity is applicable to all physical phenomena in the absence of gravity. On the other hand, general relativity describes the law of gravitation and its relationship to other forces of nature. It finds application in the cosmological and astrophysical spheres, such as in astronomy. The theory of relativity delves into concepts like space-time as a unified entity of space and time, kinematic and gravitational time dilation, length contraction, and the relativity of simultaneity. Relativistic effects have significant implications for practical engineering concerns. Satellite-based measurements utilize relativistic effects to study the motion of Earth-bound users, among other applications. This book provides comprehensive insights into the field of relativity as a concept in physical sciences. The topics covered in this extensive book deal with the core aspects of this field. Coherent flow of topics, student-friendly language and extensive use of examples make this textbook an invaluable source of knowledge.