books.google.com.au - Since humans first looked towards the heavens, they have attempted to predict and explain the motions of the sun, moon, and planets. This book describes the theories of planetary motion that have been developed through the ages, from the homocentric spheres of Eudoxus to Einstein's general theory of...http://books.google.com.au/books/about/From_Eudoxus_to_Einstein.html?id=aJuwFLGWKF8C&utm_source=gb-gplus-shareFrom Eudoxus to Einstein
