Easy Lessons in Einstein
by Edwin Emery Slosson
Publisher: Brace and Howe 1920
Number of pages: 152
What is this theory of relativity and why is it so important? The mathematics of it are too much for most of us, but we can get some notion of it by a familiar illustration. A discussion of the more intelligible features of the theory of relativity, this book was originally published in 1921.
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by David Waite - modernrelativitysite.com
This is a textbook on theories of special and general relativity. It is assumed that the reader has an understanding of mathematics through calculus and partial differential equations. The relevant tensor calculus is presented throughout as needed.
by L. Bolton - E.P. Dutton & Co.
This little book gives a remarkably readable and intelligible account of the theory of relativity. The author is presenting his material without presupposing more than elementary algebra and the elements of plane geometry.
by G. Y. Rainich - Edwards Brothers
We may consider Geometry as a first attempt at a study of the outside world. It may be considered as a system which reflects our experiences with features of the outside world, namely features connected with the displacements of rigid bodies.
by Frederic P. Schuller - arXiv
Which geometries on a smooth manifold can serve as a spacetime structure? This question is comprehensively addressed from first principles, exploring the kinematics and gravitational dynamics of all tensorial geometries on a smooth manifold.