Download or read book The Riddle of Gravitation written by Peter Gabriel Bergmann and published by Courier Corporation. This book was released on 1992-01-01 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonmathematical introduction to conceptual foundations of both Newton's and Einstein's theories of gravity features updated material on gravity waves, singularities, and other current topics. 88 illustrations. 1968 edition.