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Author: Dennis D. McCarthy
Publisher: Wiley-VCH
ISBN: 3527627952
Category : Science
Languages : en
Pages : 368
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Book Description
Filling the need for a book that conveys the current technology as well as the underlying history and physical background, this book tells physicists and engineers how to measure time to the precision required for modern-day use. The authors draw on their longstanding research experience with timekeeping and high-precision measurement to cover the use of satellites in measuring earth movement variation and the influence of the moon, while also dwelling on such topics as timekeeping aboard satellites and time transfer. Indispensable for high-precision measurements of processes in astrophysics, and relevant for measurement, navigation and communication, this monograph can be equally used as a course book or as accompanying work at advanced undergraduate or graduate level.
Author: Dennis D. McCarthy
Publisher: Wiley-VCH
ISBN: 3527627952
Category : Science
Languages : en
Pages : 368
Get Book Here
Book Description
Filling the need for a book that conveys the current technology as well as the underlying history and physical background, this book tells physicists and engineers how to measure time to the precision required for modern-day use. The authors draw on their longstanding research experience with timekeeping and high-precision measurement to cover the use of satellites in measuring earth movement variation and the influence of the moon, while also dwelling on such topics as timekeeping aboard satellites and time transfer. Indispensable for high-precision measurements of processes in astrophysics, and relevant for measurement, navigation and communication, this monograph can be equally used as a course book or as accompanying work at advanced undergraduate or graduate level.
Author: Dennis D. McCarthy
Publisher: Cambridge University Press
ISBN: 1107197287
Category : Science
Languages : en
Pages : 403
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Book Description
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 to describe twentieth- and twenty-first-century advances, progress in devices, time and cosmology, the redefinition of SI units, and the future of UTC.
Author: Claude Audoin
Publisher: Cambridge University Press
ISBN: 9780521003971
Category : Reference
Languages : en
Pages : 356
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Book Description
A unique insight into the measurement of time and its applications, at an introductory level.
Author: James Jespersen
Publisher: Courier Corporation
ISBN: 0486409139
Category : Science
Languages : en
Pages : 322
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Book Description
Clear and accessible introduction to the concept of time examines measurement, historic timekeeping methods, uses of time information, role of time in science and technology, and much more. Over 300 illustrations.
Author: D.D. McCarthy
Publisher: Springer Science & Business Media
ISBN: 9400993684
Category : Science
Languages : en
Pages : 329
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Book Description
IAU Symposium No. 82, "Time and the Earth's Rotation", met to discuss modern research in the field of the rotation of the Earth with particu lar emphasis on the role of new observational techniques in this work. The use of these techniques has prompted a new look at the definitions of the traditional reference systems and the concepts of the rotation of the Earth around its center of mass. Specific topics discussed were time, polar motion, reference systems, conventional radio interferometry, very'long baseline interferometry (VLBI), Doppler satellite methods, satellite laser ranging, lunar laser ranging, and geophysical research concerning the Earth's rotation. Improvement in the accuracy of the observations is a key to possible solutions of the many unsolved problems remaining in this field. It appears that such improvement, using both classical and new techniques, is forthcoming in the near future. This will surely contribute to a better understanding of some of the long-standing questions concerning the rotation of the Earth around its center of mass and lead to an improved knowledge of the rotating, deformable Earth. This volume contains the papers presented at IAU Symposium No. 82 as well as the discussions provoked by these papers. It is hoped that it captures the principal points of the meeting and that it will contribute not only to a better understanding of existing problems, but also to future research in time and the Earth's rotation.
Author: A Jones
Publisher: CRC Press
ISBN: 1420033492
Category : Science
Languages : en
Pages : 203
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Book Description
Until the 1950s timekeeping was based on the apparent motion of the Sun that in turn reflected the rotation of the Earth on its axis. But the Earth does not turn smoothly. By the 1940s it was clear that the length of the day fluctuated unpredictably and with it the length of the second. Astronomers wanted to redefine the second in terms of the moti
Author: F. Richard Stephenson
Publisher: Cambridge University Press
ISBN: 9780521056335
Category : Science
Languages : en
Pages : 576
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Book Description
The culmination of many years of research, this book discusses ancient and medieval eclipse observations and their importance in studying Earth's past rotation. This is the first major book on this subject in twenty years. The author has specialized for many years in the interpretation of early astronomical records and their application to problems in modern astronomy. The book contains an in-depth discussion of numerous eclipse records from Babylon, China, Europe and the Arab lands. The author provides translations of almost every record studied. He shows that although tides play a dominant long-term role in producing variations in Earth's rate of rotation--causing a gradual increase in the length of the day--there are significant and variable nontidal changes in opposition to the main trend. This book is intended for geophysicists, astronomers (especially those with an interest in history), historians and orientalists.
Author: Kurt Lambeck
Publisher: Cambridge University Press
ISBN: 9780521673303
Category : Mathematics
Languages : en
Pages : 468
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Book Description
An analysis of the irregular rotation of the Earth and the geophysical mechanisms responsible for it.
Author: Luciano Colombo
Publisher:
ISBN: 9780750322607
Category : Nuclear physics
Languages : en
Pages : 0
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Book Description
"This book introduces the fundamental quantum physics of atoms and molecules. Divided into three parts, the first provides a historical perspective leading to the contemporary view of atomic and molecular physics, outlining the principles of non-relativistic quantum mechanics. The second part covers the physical description of atoms and their interaction with radiation, whilst the third part deals with molecular physics." -- Prové de l'editor.
Author: Masatoshi Kajita
Publisher: Programme: Iop Expanding Physi
ISBN: 9780750321228
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
In this fascinating book Masatoshi Kajita recounts the importance of precise measurements and their inherent uncertainty, before telling the story of humankind's efforts to define and measure time with increasing accuracy, culminating in the development of atomic clocks. These improvements in the accurate measurement of time and frequency have played a pivotal role in the development of modern science; including the confirmation of Einstein's Theory of Relativity, and the recent detection of gravity waves. Furthermore, such measurements afforded by atomic clocks and other mechanisms are being used to examine key questions about the very fundamentals of our universe, the possibility of symmetry violation and even testing the idea that there may be variation of the fundamental constants themselves over time.
