Download or read book Clocks in the Sky written by Geoff McNamara and published by Springer Science & Business Media. This book was released on 2009-04-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsars are rapidly spinning neutron stars, the collapsed cores of once massive stars that ended their lives as supernova explosions. In this book, Geoff McNamara explores the history, subsequent discovery and contemporary research into pulsar astronomy. The story of pulsars is brought right up to date with the announcement in 2006 of a new breed of pulsar, Rotating Radio Transients (RRATs), which emit short bursts of radio signals separated by long pauses. These may outnumber conventional radio pulsars by a ratio of four to one. Geoff McNamara ends by pointing out that, despite the enormous success of pulsar research in the second half of the twentieth century, the real discoveries are yet to be made including, perhaps, the detection of the hypothetical pulsar black hole binary system by the proposed Square Kilometre Array - the largest single radio telescope in the world.

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.

Download or read book Losing the Sky written by Andy Lawrence and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the foreword by Brian May: "Professor Lawrence, in this timely book, tackles an issue which is about to become highly contentious around the world... This book will hopefully spark enough discussion to put the brakes on this destruction of our dark skies.".

Download or read book Of Clocks and Time written by Lutz Hüwel and published by Morgan & Claypool Publishers. This book was released on 2018-05-03 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of Clocks and Time takes readers on a five-stop journey through the physics and technology (and occasional bits of applications and history) of timekeeping. On the way, conceptual vistas and qualitative images abound, but since mathematics is spoken everywhere the book visits equations, quantitative relations, and rigorous definitions are offered as well. The expedition begins with a discussion of the rhythms produced by the daily and annual motion of sun, moon, planets, and stars. Centuries worth of observation and thinking culminate in Newton's penetrating theoretical insights since his notion of space and time are still influential today. During the following two legs of the trip, tools are being examined that allow us to measure hours and minutes and then, with ever growing precision, the tiniest fractions of a second. When the pace of travel approaches the ultimate speed limit, the speed of light, time and space exhibit strange and counter-intuitive traits. On this fourth stage of the journey, Einstein is the local tour guide whose special and general theories of relativity explain the behavior of clocks under these circumstances. Finally, the last part of the voyage reverses direction, moving ever deeper into the past to explore how we can tell the age of "things" - including that of the universe itself.

Download or read book The Monthly Evening Sky Map written by and published by . This book was released on 1909 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book People and the Sky written by Anthony Aveni and published by Thames and Hudson. This book was released on 2008-04-29 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Anthony Aveni reveals how !Kung and Mursi hunter-gatherers depended on signals in the sky for their survival and sustenance; how Polynesian sailors navigated a seemingly limitless watery world by star bearings; how social cohesion in cultures as diverse as the Pawnee and the Inca was mirrored in celestial imagery; and how the cosmic connection between the arrangement of Chinese and Aztec cities and the constellations served as an expression of political authority." "For most of human history, people found meaning in the dance of the cosmic denizens. Today, many aspects of this intimate contact between daily life and what happens in the sky have disappeared. Did our ancestors have an understanding of the cosmos that we ourselves lack? How and why did it all happen? These are the questions addressed in this engaging and erudite book."--BOOK JACKET.

Download or read book The End of Time written by Julian Barbour and published by Oxford University Press. This book was released on 2001-11-29 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Richard Feynman once quipped that "Time is what happens when nothing else does." But Julian Barbour disagrees: if nothing happened, if nothing changed, then time would stop. For time is nothing but change. It is change that we perceive occurring all around us, not time. Put simply, time does not exist. In this highly provocative volume, Barbour presents the basic evidence for a timeless universe, and shows why we still experience the world as intensely temporal. It is a book that strikes at the heart of modern physics. It casts doubt on Einstein's greatest contribution, the spacetime continuum, but also points to the solution of one of the great paradoxes of modern science, the chasm between classical and quantum physics. Indeed, Barbour argues that the holy grail of physicists--the unification of Einstein's general relativity with quantum mechanics--may well spell the end of time. Barbour writes with remarkable clarity as he ranges from the ancient philosophers Heraclitus and Parmenides, through the giants of science Galileo, Newton, and Einstein, to the work of the contemporary physicists John Wheeler, Roger Penrose, and Steven Hawking. Along the way he treats us to enticing glimpses of some of the mysteries of the universe, and presents intriguing ideas about multiple worlds, time travel, immortality, and, above all, the illusion of motion. The End of Time is a vibrantly written and revolutionary book. It turns our understanding of reality inside-out.

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.

Download or read book Tangible Things written by Laurel Thatcher Ulrich and published by Oxford University Press. This book was released on 2015-02-06 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a world obsessed with the virtual, tangible things are once again making history. Tangible Things invites readers to look closely at the things around them, ordinary things like the food on their plate and extraordinary things like the transit of planets across the sky. It argues that almost any material thing, when examined closely, can be a link between present and past. The authors of this book pulled an astonishing array of materials out of storage--from a pencil manufactured by Henry David Thoreau to a bracelet made from iridescent beetles--in a wide range of Harvard University collections to mount an innovative exhibition alongside a new general education course. The exhibition challenged the rigid distinctions between history, anthropology, science, and the arts. It showed that object-centered inquiry inevitably leads to a questioning of categories within and beyond history. Tangible Things is both an introduction to the range and scope of Harvard's remarkable collections and an invitation to reassess collections of all sorts, including those that reside in the bottom drawers or attics of people's houses. It interrogates the nineteenth-century categories that still divide art museums from science museums and historical collections from anthropological displays and that assume history is made only from written documents. Although it builds on a larger discussion among specialists, it makes its arguments through case studies, hoping to simultaneously entertain and inspire. The twenty case studies take us from the Galapagos Islands to India and from a third-century Egyptian papyrus fragment to a board game based on the twentieth-century comic strip "Dagwood and Blondie." A companion website catalogs the more than two hundred objects in the original exhibition and suggests ways in which the principles outlined in the book might change the way people understand the tangible things that surround them.

Download or read book The Mother s Magazine and Family Circle written by and published by . This book was released on 1876 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Monograph written by and published by . This book was released on 1959 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Time written by Samuel L. Macey and published by Routledge. This book was released on 2013-04-11 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this encyclopedia, some 200 international scholars in 360 articles explore subjects such as physics, archeostronomy, astronomy, mathematics, time's measurements and divisions, as well as covering other scientific and interdisciplinary areas: biology, economics and political science, horology, history, medicine, geography, geology and telecommunications.

Download or read book Orreries Clocks and London Society written by Tony Buick and published by Springer Nature. This book was released on 2020-12-23 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orreries—mechanical models of the Solar System and its motions—are found everywhere. They appear in paintings, on computers, across natural landscapes, and in museums all over the world. The more you look, the more you find, yet their significance is often overlooked aside other great astronomical inventions. This book reclaims the history of the orrery, offering a fascinating look into its evolution over the centuries. With a particular focus on London society and clockmakers, it weaves together historical narrative with practical know-hows and scientific fact, showing how the orrery changed from a fanciful toy to a high-tech instrument to a vessel for art and education. The first edition, Orrery, explained what an orrery is and how it got its name. This revised edition goes several steps further, tracing the instrument back to the time of Ptolemy and forward to planetariums and star projectors. In addition, it features new sections on how to construct your own orrery at home. This book will appeal to anybody interested in astronomical mechanical devices, scientific instruments, horology, or the history of clocks.

Download or read book Visualizing Physical Geography written by Timothy Foresman and published by John Wiley & Sons. This book was released on 2012-01-11 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its unique approach, Visualizing Physical Geography 2nd Edition captures the reader's attention and demonstrates why physical geography is relevant to them. It relies heavily on the integration of National Geographic and other visuals with narrative to explore key concepts. New emphasis is placed on environmental issues, such as climate change, overpopulation and deforestation, from a geographical perspective. Readers will appreciate this approach because it vividly illustrates the interconnectedness of physical processes that weave together to create our planet's dynamic surface and atmosphere.

Download or read book The New Human Interest Library written by Silas Edgar Farquhar and published by . This book was released on 1928 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by United States. National Aeronautics and Space Administration and published by . This book was released on 1959 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Wealth of Numbers written by Benjamin Wardhaugh and published by Princeton University Press. This book was released on 2012-04-29 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite what we may sometimes imagine, popular mathematics writing didn't begin with Martin Gardner. In fact, it has a rich tradition stretching back hundreds of years. This entertaining and enlightening anthology--the first of its kind--gathers nearly one hundred fascinating selections from the past 500 years of popular math writing, bringing to life a little-known side of math history. Ranging from the late fifteenth to the late twentieth century, and drawing from books, newspapers, magazines, and websites, A Wealth of Numbers includes recreational, classroom, and work mathematics;