The Quantum Beat

The Quantum Beat PDF Author: Fouad G. Major
Publisher: Springer Science & Business Media
ISBN: 1475729235
Category : Science
Languages : en
Pages : 480

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Book Description
This work reviews the principles underlying quantum-based atomic clocks, with introductory chapters placing them in context with the development of mechanical clocks and electronic quartz-controlled clocks. The book details design principles of the rubidium, cesium, hydrogen maser, and mercury ion standards; changes enabled by the advent of the laser; and the time-based global navigation systems, Loran-C and the Global Positioning System. The new edition includes such recent developments as clocks based on quantum resonance at optical frequency in individual ions confined in miniature electromagnetic traps. The Quantum Beat explores the subject with a minimum of mathematical formalism.

The Quantum Beat

The Quantum Beat PDF Author: Fouad G. Major
Publisher: Springer Science & Business Media
ISBN: 1475729235
Category : Science
Languages : en
Pages : 480

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Book Description
This work reviews the principles underlying quantum-based atomic clocks, with introductory chapters placing them in context with the development of mechanical clocks and electronic quartz-controlled clocks. The book details design principles of the rubidium, cesium, hydrogen maser, and mercury ion standards; changes enabled by the advent of the laser; and the time-based global navigation systems, Loran-C and the Global Positioning System. The new edition includes such recent developments as clocks based on quantum resonance at optical frequency in individual ions confined in miniature electromagnetic traps. The Quantum Beat explores the subject with a minimum of mathematical formalism.

From Sundials to Atomic Clocks

From Sundials to Atomic Clocks PDF 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.

The Time Book

The Time Book PDF Author: Martin Jenkins
Publisher:
ISBN: 9781406323733
Category : Clocks and watches
Languages : en
Pages : 0

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Book Description
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.

Rubidium Atomic Clock: The Workhorse Of Satellite Navigation

Rubidium Atomic Clock: The Workhorse Of Satellite Navigation PDF Author: G M Saxena
Publisher: World Scientific
ISBN: 9813279508
Category : Science
Languages : en
Pages : 317

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Book Description
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.

Measuring Time

Measuring Time PDF 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.

The Measurement of Time

The Measurement of Time PDF 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.

Time: From Earth Rotation to Atomic Physics

Time: From Earth Rotation to Atomic Physics PDF 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.

A Brief History of Timekeeping

A Brief History of Timekeeping PDF Author: Chad Orzel
Publisher: BenBella Books
ISBN: 1953295940
Category : Science
Languages : en
Pages : 305

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Book Description
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.

Laser Physics at the Limits

Laser Physics at the Limits PDF Author: Hartmut Figger
Publisher: Springer Science & Business Media
ISBN: 3662048973
Category : Science
Languages : en
Pages : 525

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Book Description
Published on the occasion of Theodor Hänsch's 60th Birthday emphasis is placed on precision related to results in a variety of fields, such as atomic clocks, frequency standards, and the measurement of physical constants in atomic physics. Furthermore, illustrations and engineering applications of the fundamentals of quantum mechanics are widely covered. It has contributions by Nobel prize winners Norman F. Ramsey, Steven Chu, and Carl E. Wieman.

The Doomsday Clock At 75

The Doomsday Clock At 75 PDF Author: Robert K. Elder
Publisher:
ISBN: 9781955125154
Category :
Languages : en
Pages : 184

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Book Description
The Doomsday Clock is many things all at once: It's a metaphor, it's a logo, it's a brand, and it's one of the most recognizable symbols of the past 100 years. Chicago landscape artist Martyl Langsdorf, who went by her first name professionally, created the Doomsday Clock design for the June 1947 cover of the Bulletin of the Atomic Scientists, published by the news organization and nonprofit behind the iconic Doomsday Clock. It sits at the crossroads of science and art, and therefore communicates an immediacy that few other forms can. As designer Michael Bierut says, the Clock is "the most powerful piece of information design of the 20th century." The Doomsday Clock has permeated not only the media landscape but also culture itself. As you'll see in the pages of this book, more than a dozen musicians, including The Who, The Clash, and Smashing Pumpkins, have written songs about it. It's referenced in countless novels (Stephen King, Piers Anthony), comic books (Watchmen, Stormwatch), movies (Dr. Strangelove, The Simpsons Movie, Justice League), and TV shows (Doctor Who, Madame Secretary). Even the shorthand, the way we announce time on the Doomsday Clock--"It is Two Minutes to Midnight" (or whatever the current time might be)--has been adopted into the global vernacular. Throughout the Doomsday Clock's 75 years, the Bulletin has worked to preserve its integrity and its scientific mission to educate and inform the public. This is why, in part, we wanted to explore this powerful symbol and how it has impacted culture, politics, and global policy--and how it's helped shape discussions and strategies around nuclear risk, climate change, and disruptive technologies. It's a symbol of danger, of hope, of caution, and of our responsibility to one another.