From the infinitesimal scale of particle physics to the cosmic scale of the universe, research is concerned with the nature of mass. While there have been spect

This is the first book in which Einstein's equation is explicitly compared with its popular though not correct counterpart E = mc2, according to which mass incr

Best-selling, accessible physics-first introduction to GR uses minimal new mathematics and begins with the essential physical applications.

An accessible introductory textbook on general relativity, covering the theory's foundations, mathematical formalism and major applications.

Hermann Minkowski recast special relativity as essentially a new geometric structure for spacetime. This book looks at the ideas of both Einstein and Minkowski,