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Time : from Earth rotation to atomic physics

Author: Dennis D McCarthy; P Kenneth Seidelmann
Publisher: Cambridge : Cambridge University Press, 2018.
Edition/Format:   eBook : Document : English : Second editionView all editions and formats
Summary:
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  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Dennis D McCarthy; P Kenneth Seidelmann
ISBN: 9781108178365 1108178367
OCLC Number: 1066117421
Notes: Title from publisher's bibliographic system (viewed on 09 Oct 2018).
Description: 1 online resource (xvi, 386 pages) : PDF file(s).
Contents: Time-pre 20th century --
Solar time --
Ephemerides --
Variable earth rotation --
Earth orientation --
Ephemeris time --
Relativity and time --
Time and cosmology --
Dynamical and coordinate time scales --
Clock developments --
Microwave atomic clocks --
Optical atomic standards --
Definition and role of a second --
International atomic time (TAI) --
Coordinated universal time (UTC) --
Time in the solar system --
Time and frequency transfer --
Modern earth orientation --
International activities --
Time applications --
Future of time keeping.
Responsibility: Dennis D. McCarthy, P. Kenneth Seidelmann.

Abstract:

This accessible reference presents the evolution of concepts of time and methods of time keeping, for historians, scientists, engineers, and educators. The second edition has been updated throughout  Read more...

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'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 Read more...

 
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