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Look Inside Time: From Earth Rotation to Atomic Physics

Time: From Earth Rotation to Atomic Physics

2nd Edition

$84.99 (P)

  • Date Published: November 2018
  • availability: In stock
  • format: Hardback
  • isbn: 9781107197282

$ 84.99 (P)
Hardback

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About the Authors
  • In the twenty-first century, we take the means to measure time for granted, without contemplating the sophisticated concepts on which our time scales are based. This volume presents the evolution of concepts of time and methods of time keeping up to the present day. It outlines the progression of time based on sundials, water clocks, and the Earth's rotation, to time measurement using pendulum clocks, quartz crystal clocks, and atomic frequency standards. Time scales created as a result of these improvements in technology and the development of general and special relativity are explained. This second edition has been updated throughout to describe twentieth- and twenty-first-century advances and discusses the redefinition of SI units and the future of UTC. A new chapter on time and cosmology has been added. This broad-ranging reference benefits a diverse readership, including historians, scientists, engineers, educators, and it is accessible to general readers.

    • Explains the history of the developments from Earth rotation to atomic physics for time measurement and the wide spread applications of time
    • Details, theory, and equations are provided of Earth orientation sciences and the use of relativity in time scales
    • Gives the latest progress in accurate time-keeping and explains the techniques used in atomic and optical clocks
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    Reviews & endorsements

    '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

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    Product details

    • Edition: 2nd Edition
    • Date Published: November 2018
    • format: Hardback
    • isbn: 9781107197282
    • length: 400 pages
    • dimensions: 253 x 178 x 23 mm
    • weight: 0.95kg
    • availability: In stock
  • Table of Contents

    Preface
    1. Time: pre-twentieth century
    2. Solar time
    3. Ephemerides
    4. Variable Earth rotation
    5. Earth orientation
    6. Ephemeris time
    7. Relativity and time
    8. Time and cosmology
    9. Dynamical and coordinate time scales
    10. Clock developments
    11. Microwave atomic clocks
    12. Optical atomic standards
    13. Definition and role of a second
    14. International Atomic Time (TAI)
    15. Coordinated Universal Time (UTC)
    16. Time in the solar system
    17. Time and frequency transfer
    18. Modern Earth orientation
    19. International activities
    20. Time applications
    21. Future of time keeping
    Acronyms
    Glossary.

  • Authors

    Dennis D. McCarthy, United States Naval Observatory

    P. Kenneth Seidelmann, University of Virginia

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