David McMahon works as a researcher at Sandia National Laboratory, a Department of Energy facility. His research involves work on nuclear fusion and the design of nuclear-powered spacecraft. He has a master's degree in physics and a bachelor's in applied mathematics, both from the University of New Mexico at Albuquerque. He is currently pursuing a doctorate in theoretical physics in the areas of quantum field theory and the use of general relativity. Mr. McMahon is a published author. Previous work includes two books on computer programming: Rapid Application Development with Visual Basic 6 and Rapid Application Development with Visual C++. He also wrote Quantum Mechanics Demystified, and was a contributing writer to Ace the Technical Interview. All of his books are published by McGraw-Hill. He lives in Albuquerque, New Mexico.

Part One: The Mathematical Tools of Relativity 1 Vectors 2 One Forms and Tensors 3 More on Tensors, Tensor Algebra 4 The Metric 5 The Connection 6 Covariant Derivatives 7 Tensor Calculus Continued 8 The Riemann Tensor and other important quantities 9 Tensor Identities, Equations and more important Quantities 10 Killing Vectors Part Two: The Physics of Relativity 11 Overview of Special Relativity I 12 Overview of Special Relativity II 13 The Basic Structure of General Relativity 14 Schwarzchild Spacetimes Part One 15 Schwarzchild Spacetimes Part Two 16 Introducting Black Holes 17 Black Holes: Part Two 18 Gravitational Radiation 19 Cosmological Models