Gravity's Arc: The Story of Gravity from Aristotle to Einstein and Beyond

David Darling has a Ph.D. in astronomy and has been a full-time freelance science writer for more than twenty years. He is the author of "Teleportation: The Impossible Leap," as well as three science encyclopedias: "The Universal Book of Mathematics," "The Universal Book of Astronomy," and "The Complete Book of Spaceflight," all available from Wiley. His other narrative science titles include "Deep Time" and "Equations of Eternity," a "New York Times Notable Book." Darling's articles and reviews have appeared in "Astronomy," "Omni," "Penthouse," "New Scientist," the "New York Times," and the "Guardian," among others. He also hosts a major informational Web site, www.daviddarling.info.