Description
This accessible reference presents the evolution of concepts of time and methods of time keeping, for historians, scientists, engineers, and educators.
About the Author
Dennis D. McCarthy is a former Director of Time at the United States Naval Observatory, the leading authority in the US for astronomical and timing data. He has led and been a member of various Commissions and Working Groups within the International Astronomical Union and has authored and edited numerous publications dealing with fundamental astronomy, time, and Earth orientation. P. Kenneth Seidelmann is a research professor of astronomy at the University of Virginia and is a former Director of Astrometry at the US Naval Observatory. He has led and been a member of a Division, various Commissions, and Working Groups of the International Astronomical Union, has co-authored two other books: Fundamentals of Astrometry (Cambridge, 2004) and Celestial Mechanics and Astrodynamics (2016), and is co-editor of the Explanatory Supplement to the Astronomical Almanac (2012).
Reviews
'Why do we add 1 second to our clocks at midnight at the end of some years, or at the end of June in others? Why don't we subtract 1 second sometimes instead? ... You will find the answers to these and many more questions in this excellent book, written by two experts who worked on the practical aspects of these topics at the US Naval Observatory ... The second edition brings these subjects right up to date, and investigates the possible future developments in timekeeping.' L. V. Morrison, The Observatory
Book Information
ISBN 9781107197282
Author Dennis D. McCarthy
Format Hardback
Page Count 400
Imprint Cambridge University Press
Publisher Cambridge University Press
Weight(grams) 950g
Dimensions(mm) 253mm * 178mm * 23mm