1999 - Time's Pendulum From Sundials to Atomic Clocks the Fascinating History of Timekeeping and How Our Discoveries Changed the World (Paperback) ISBN-13: 9780156006491 ISBN-10: 0156006499 Genres: Science & Math, Engineering & Transportation 2 1998 - Time's Pendulum the Quest to Capture Timefrom Sundials to Atomic Clocks (Hardcover) ISBN-13: 9780306457876 ISBN-10: 0306457873 Genres: History, Science & Math, Engineering & Transportation ? El Pendulo Del Tiempo [Spanish Edition] (Paperback) ISBN-13: 9788483072493 ISBN-10: 8483072491 Genres: Nonfiction, Science & Math ? |