Cassandra Kay Silva716 reviews337 followersFollowFollowMarch 28, 2011This book was short, informative and to the point. It is just a brief overview of the transition from Newtonian thinking to Einsteins new concepts. It was written in 1920 so that must be kept in mind. science
Bryan781 reviews9 followersFollowFollowSeptember 14, 2012A classic that is still worth reading. Especially well done descriptions of Einstein's theories of relativity.