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Around The World Atomic Clocks
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Book Synopsis Rubidium Atomic Clock: The Workhorse Of Satellite Navigation by : G M Saxena
Download or read book Rubidium Atomic Clock: The Workhorse Of Satellite Navigation written by G M Saxena and published by World Scientific. This book was released on 2020-03-05 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rubidium atomic clock (Rb) is the workhorse of the satellite navigation systems of which GPS is now a household name. With just the tap of a few keys, drivers and navigators all over the world are able to reach their destination effortlessly with high precision. People are now curious to know what makes this possible. Hence, the need to explain in simplistic terms the Rb atomic clocks that are onboard these satellite navigation systems because no good satellite navigation system is possible without such clocks.But why only Rb atomic clocks when far better and exotic atomic clocks are available? The reasons are as simple as that they are slim, low in weight, easy to build inexpensively. They are also used in numerous military applications such as secure communications, electronic warfare, command and control, telemetry and navigation. Besides, they are used in the measurements of the variation in fine-structure constant, test of relativity, precise spectroscopy and scientific research.This book details the history of time keeping and the chronological development of the Rb atomic clocks, with special focus on the physics Package that accounts for the actual performance of the clock. Researchers and industrialists will find that producing such clocks is relatively simple and inexpensive.
Download or read book The Time Book written by Martin Jenkins and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is time? When did we first use it? Does it always work? How do animals tell time? A fun and fascinating look at time from the first calendars and clocks to the digital watches and precise time-keeping methods of today.
Book Synopsis Time: From Earth Rotation to Atomic Physics by : Dennis D. McCarthy
Download or read book Time: From Earth Rotation to Atomic Physics written by Dennis D. McCarthy and published by Cambridge University Press. This book was released on 2018-10-18 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Splitting The Second by : Tony Jones
Download or read book Splitting The Second written by Tony Jones and published by CRC Press. This book was released on 2000-01-01 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 motions of the Moon and the planets. Physicists wanted to dispense with astronomical time altogether and define the second in terms of the fundamental properties of atoms. The physicists won. The revolution began in June 1955 with the operation of the first successful atomic clock and was complete by October 1967 when the atomic second ousted the astronomical second as the international unit of time. Splitting the Second: The Story of Atomic Time presents the story of this revolution, explaining how atomic clocks work, how more than 200 of them are used to form the world's time, and why we need leap seconds. The book illustrates how accurate time is distributed around the world and what it is used for. It concludes with a look at the future of timekeeping.
Download or read book Splitting The Second written by A Jones and published by CRC Press. This book was released on 2000-01-01 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis From Sundials to Atomic Clocks by : James Jespersen
Download or read book From Sundials to Atomic Clocks written by James Jespersen and published by Courier Corporation. This book was released on 1999-01-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Time and the Metaphysics of Relativity by : W.L. Craig
Download or read book Time and the Metaphysics of Relativity written by W.L. Craig and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The larger project of which this volume forms part is an attempt to craft a coherent doctrine of divine eternity and God's relationship to time. Central to this project is the integration of the concerns of theology with the concept of time in relativity theory. This volume provides an accessible and philosophically informed examination of the concept of time in relativity, the ultimate aim being the achievement of a tenable theological synthesis.
Book Synopsis A Brief History of Timekeeping by : Chad Orzel
Download or read book A Brief History of Timekeeping written by Chad Orzel and published by BenBella Books. This book was released on 2022-01-25 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2022 NATIONAL INDIE EXCELLENCE AWARDS WINNER — HISTORY: GENERAL ". . . inherently interesting, unique, and highly recommended addition to personal, professional, community, college, and academic library Physics of Time & Scientific Measurement history collections, and supplemental curriculum studies lists.” —Midwest Book Review "A wonderful look into understanding and recording time, Orzel’s latest is appropriate for all readers who are curious about those ticks and tocks that mark nearly every aspect of our lives." —Booklist “A thorough, enjoyable exploration of the history and science behind measuring time.” —Foreword Reviews It’s all a matter of time—literally. From the movements of the spheres to the slipperiness of relativity, the story of science unfolds through the fascinating history of humanity’s efforts to keep time. Our modern lives are ruled by clocks and watches, smartphone apps and calendar programs. While our gadgets may be new, however, the drive to measure and master time is anything but—and in A Brief History of Timekeeping, Chad Orzel traces the path from Stonehenge to your smartphone. Predating written language and marching on through human history, the desire for ever-better timekeeping has spurred technological innovation and sparked theories that radically reshaped our understanding of the universe and our place in it. Orzel, a physicist and the bestselling author of Breakfast with Einstein and How to Teach Quantum Physics to Your Dog continues his tradition of demystifying thorny scientific concepts by using the clocks and calendars central to our everyday activities as a jumping-off point to explore the science underlying the ways we keep track of our time. Ancient solstice markers (which still work perfectly 5,000 years later) depend on the basic astrophysics of our solar system; mechanical clocks owe their development to Newtonian physics; and the ultra-precise atomic timekeeping that enables GPS hinges on the predictable oddities of quantum mechanics. Along the way, Orzel visits the delicate negotiations involved in Gregorian calendar reform, the intricate and entirely unique system employed by the Maya, and how the problem of synchronizing clocks at different locations ultimately required us to abandon the idea of time as an absolute and universal quantity. Sharp and engaging, A Brief History of Timekeeping is a story not just about the science of sundials, sandglasses, and mechanical clocks, but also the politics of calendars and time zones, the philosophy of measurement, and the nature of space and time itself. For those interested in science, technology, or history, or anyone who’s ever wondered about the instruments that divide our days into moments: the time you spend reading this book may fly, and it is certain to be well spent.
Book Synopsis Time's Pendulum by : Jo Ellen Barnett
Download or read book Time's Pendulum written by Jo Ellen Barnett and published by Houghton Mifflin Harcourt. This book was released on 1999 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: A look at man's attempts to accurately measure time shows how the concept of time has steadily evolved and broadened our perception of the world.
Book Synopsis Measuring Time by : Masatoshi Kajita
Download or read book Measuring Time written by Masatoshi Kajita and published by Programme: Iop Expanding Physi. This book was released on 2018-09-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Challenging the Unchallengeable by : John D. Frey
Download or read book Challenging the Unchallengeable written by John D. Frey and published by Archway Publishing. This book was released on 2018-02-02 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: John D. Frey leads readers on a fascinating journey in this book that seeks to prove that Albert Einsteins theory of special relativity is all wrong. He begins by sharing an overview of special relativity, including its history, principles, and how these principles bring about time dilation and length contraction. The author examines six experiments that show that the theorys claims and principles can disqualify themselves by producing impossible, opposing results. He also explains how experiments that supposedly have verified special relativity and its claims actually help prove that the theory is flawed. Behind this book was over 10 years of research by the author concerning every aspect of special relativity. In addition, the author consulted with over 30 professors of physics concerning his ideas and experiments and their feedback was extremely important in the creation of this book. Written in everyday, nontechnical language, the book will make sense to those without a background in physics. No matter what you do for a living, you can participate in a vital discussion about our universe and join the author in Challenging the Unchallengeable.
Download or read book Growing Up with Science written by and published by Marshall Cavendish. This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume fifteen of a seventeen-volume, alphabetically-arranged encyclopedia contains approximately five hundred articles introducing key aspects of science and technology.
Book Synopsis Literature 1972, Part 2 by : S. Böhme
Download or read book Literature 1972, Part 2 written by S. Böhme and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is de voted to the recording, summarizing and indexing of astronomical publications throughout the world. It is prepared under the auspices of the International Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a comprehensive documentation of literature in all fields of astronomy and astrophysics. Every effort will be made to ensure that the average time interval between the date of receipt of the original literature and publication of the abstracts will not exceed eight months. This time interval is near to that achieved by monthly abstracting journals, com pared to which our system of accumulating abstracts for about six months offers the advantage of greater convenience for the user. Volume 8 contains literature published in 1972 and received before March 15, 1973; some older liter ature which was received late and which is not recorded in earlier volumes is also included.
Book Synopsis Position, Navigation, and Timing Technologies in the 21st Century by : Y. Jade Morton
Download or read book Position, Navigation, and Timing Technologies in the 21st Century written by Y. Jade Morton and published by John Wiley & Sons. This book was released on 2021-01-13 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the latest developments in PNT technologies, including integrated satellite navigation, sensor systems, and civil applications Featuring sixty-four chapters that are divided into six parts, this two-volume work provides comprehensive coverage of the state-of-the-art in satellite-based position, navigation, and timing (PNT) technologies and civilian applications. It also examines alternative navigation technologies based on other signals-of-opportunity and sensors and offers a comprehensive treatment on integrated PNT systems for consumer and commercial applications. Volume 1 of Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications contains three parts and focuses on the satellite navigation systems, technologies, and engineering and scientific applications. It starts with a historical perspective of GPS development and other related PNT development. Current global and regional navigation satellite systems (GNSS and RNSS), their inter-operability, signal quality monitoring, satellite orbit and time synchronization, and ground- and satellite-based augmentation systems are examined. Recent progresses in satellite navigation receiver technologies and challenges for operations in multipath-rich urban environment, in handling spoofing and interference, and in ensuring PNT integrity are addressed. A section on satellite navigation for engineering and scientific applications finishes off the volume. Volume 2 of Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications consists of three parts and addresses PNT using alternative signals and sensors and integrated PNT technologies for consumer and commercial applications. It looks at PNT using various radio signals-of-opportunity, atomic clock, optical, laser, magnetic field, celestial, MEMS and inertial sensors, as well as the concept of navigation from Low-Earth Orbiting (LEO) satellites. GNSS-INS integration, neuroscience of navigation, and animal navigation are also covered. The volume finishes off with a collection of work on contemporary PNT applications such as survey and mobile mapping, precision agriculture, wearable systems, automated driving, train control, commercial unmanned aircraft systems, aviation, and navigation in the unique Arctic environment. In addition, this text: Serves as a complete reference and handbook for professionals and students interested in the broad range of PNT subjects Includes chapters that focus on the latest developments in GNSS and other navigation sensors, techniques, and applications Illustrates interconnecting relationships between various types of technologies in order to assure more protected, tough, and accurate PNT Position, Navigation, and Timing Technologies in the 21st Century: Integrated Satellite Navigation, Sensor Systems, and Civil Applications will appeal to all industry professionals, researchers, and academics involved with the science, engineering, and applications of position, navigation, and timing technologies. pnt21book.com
Book Synopsis Round About the Earth by : Joyce E. Chaplin
Download or read book Round About the Earth written by Joyce E. Chaplin and published by Simon and Schuster. This book was released on 2013-11-19 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in hardcover in 2012.
Book Synopsis The Quantum Physics of Atomic Frequency Standards by : Jacques Vanier
Download or read book The Quantum Physics of Atomic Frequency Standards written by Jacques Vanier and published by CRC Press. This book was released on 2015-08-05 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-Date Coverage of Stable and Accurate Frequency StandardsThe Quantum Physics of Atomic Frequency Standards: Recent Developments covers advances in atomic frequency standards (atomic clocks) from the last several decades. It explains the use of various techniques, such as laser optical pumping, coherent population trapping, laser cooling, and e
Book Synopsis Rubidium Atomic Clock by : BIKASH. SAXENA GHOSAL (G M.)
Download or read book Rubidium Atomic Clock written by BIKASH. SAXENA GHOSAL (G M.) and published by . This book was released on 2019 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt:
