21st Century Relativity: A Primer

A modern approach to the subject of special relativity through hyperbolic trigonometry. Contains never before published proofs of Einstein's 2nd Postulate and the mathematics that are responsible for the myth of relativistic mass. Also offers a new perspective of special relativity as a type of lambda 6-group. Takes a fresh look at the protocol for measurements and the associated properties of time dilation and length contraction. Gives a detailed description of the fundamental differential equation at the heart of relativity, along with its history, which is centuries older than relativity, older even than Newton and Galileo. Remarkably, its first application is still in use today, 5 centuries later. The book is based on math courses that any college prep high school student can understand. No tensors, some differential equations, just simple linear, first-order DE's. View Less