Introduction to Relativity

John Benjamin Kogut, PhD, is an American theoretical physicist, specializing in high energy physics. He has contributed to the quark-parton model, light-cone quantization, quark confinement, lattice gauge theory, Quantum Chromodynamics (the field theory of quarks and gluons) in extreme environments (high temperatures and densities), and supercomputer simulations as a tool for theoretical physics. For 27 years Dr. Kogut was on the physics faculty of the Loomis Laboratory at the University of Illinois, Urbana-Champaign, retiring in 2005 as professor emeritus.

"When you are courting a nice girl, an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity." Albert Einstein

• Physics According to Newton - A World with No Speed LimitPhysics According to EinsteinVisualizing Relativity - Minowski DiagramsAssorted ApplicationsIllustrations and Problems in Space-Time MeasurementsRelativistic DynamicsA Gentle Introduction to General RelativityIllustrations, Problems, and Discussions in General Relativity