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Time : From Earth Rotation to Atomic Physics - Dennis D. McCarthy


From Earth Rotation to Atomic Physics

Hardcover Published: 18th October 2018
ISBN: 9781107197282
Number Of Pages: 400

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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.

Preface; 1. Time: Pre-20th 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.

ISBN: 9781107197282
ISBN-10: 1107197287
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 400
Published: 18th October 2018
Country of Publication: GB
Dimensions (cm): 25.1 x 17.2  x 2.3
Weight (kg): 0.95
Edition Number: 2
Edition Type: Revised