Download or read book Clocks in the Sky written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Clock in the Sky written by George Washington Cable and published by . This book was released on 1901 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 About Time written by David Rooney and published by National Geographic Books. This book was released on 2022-08-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of Smithsonian Magazine's Ten Best History Books of 2021 A captivating, surprising history of timekeeping and how it has shaped our world. For thousands of years, people of all cultures have made and used clocks, from the city sundials of ancient Rome to the medieval water clocks of imperial China, hourglasses fomenting revolution in the Middle Ages, the Stock Exchange clock of Amsterdam in 1611, Enlightenment observatories in India, and the high-precision clocks circling the Earth on a fleet of GPS satellites that have been launched since 1978. Clocks have helped us navigate the world and build empires, and have even taken us to the brink of destruction. Elites have used them to wield power, make money, govern citizens, and control lives—and sometimes the people have used them to fight back. Through the stories of twelve clocks, About Time brings pivotal moments from the past vividly to life. Historian and lifelong clock enthusiast David Rooney takes us from the unveiling of al-Jazari’s castle clock in 1206, in present-day Turkey; to the Cape of Good Hope observatory at the southern tip of Africa, where nineteenth-century British government astronomers moved the gears of empire with a time ball and a gun; to the burial of a plutonium clock now sealed beneath a public park in Osaka, where it will keep time for 5,000 years. Rooney shows, through these artifacts, how time has been imagined, politicized, and weaponized over the centuries—and how it might bring peace. Ultimately, he writes, the technical history of horology is only the start of the story. A history of clocks is a history of civilization.
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 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 End of Time written by Julian Barbour and published by Oxford University Press. This book was released on 2001-11-29 with total page 384 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 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 The Cartiers written by Francesca Cartier Brickell and published by Ballantine Books. This book was released on 2021-06-08 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: “A dynamic group biography studded with design history and high-society dash . . . [This] elegantly wrought narrative bears the Cartier hallmark.”—The Economist The “astounding” (André Leon Talley) story of the family behind the Cartier empire and the three brothers who turned their grandfather’s humble Parisian jewelry store into a global luxury icon—as told by a great-granddaughter with exclusive access to long-lost family archives “Ms. Cartier Brickell has done her grandfather proud.”—The Wall Street Journal The Cartiers is the revealing tale of a jewelry dynasty—four generations, from revolutionary France to the 1970s. At its heart are the three Cartier brothers whose motto was “Never copy, only create” and who made their family firm internationally famous in the early days of the twentieth century, thanks to their unique and complementary talents: Louis, the visionary designer who created the first men’s wristwatch to help an aviator friend tell the time without taking his hands off the controls of his flying machine; Pierre, the master dealmaker who bought the New York headquarters on Fifth Avenue for a double-stranded natural pearl necklace; and Jacques, the globe-trotting gemstone expert whose travels to India gave Cartier access to the world’s best rubies, emeralds, and sapphires, inspiring the celebrated Tutti Frutti jewelry. Francesca Cartier Brickell, whose great-grandfather was the youngest of the brothers, has traveled the world researching her family’s history, tracking down those connected with her ancestors and discovering long-lost pieces of the puzzle along the way. Now she reveals never-before-told dramas, romances, intrigues, betrayals, and more. The Cartiers also offers a behind-the-scenes look at the firm’s most iconic jewelry—the notoriously cursed Hope Diamond, the Romanov emeralds, the classic panther pieces—and the long line of stars from the worlds of fashion, film, and royalty who wore them, from Indian maharajas and Russian grand duchesses to Wallis Simpson, Coco Chanel, and Elizabeth Taylor. Published in the two-hundredth anniversary year of the birth of the dynasty’s founder, Louis-François Cartier, this book is a magnificent, definitive, epic social history shown through the deeply personal lens of one legendary family.
Download or read book The Sky written by and published by . This book was released on 1937 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 St Nicholas written by and published by . This book was released on 1877 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Story of Clocks and Calendars written by Betsy Maestro and published by Harper Collins. This book was released on 2004-11-02 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Travel through time with the maestros as they explore the amazing history of timekeeping! Did you know that there is more than one calendar? While the most commonly used calendar was on the year 2000, the Jewish calendar said it was the year 5760, while the Muslim calendar said 1420 and the Chinese calendar said 4698. Why do these differences exist? How did ancient civilizations keep track of time? When and how were clocks first invented? Find answers to all these questions and more in this incredible trip through history.
Download or read book Sky and Ocean Joined written by Steven J. Dick and published by Cambridge University Press. This book was released on 2003 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: As one of the oldest scientific institutions in the United States, the US Naval Observatory has a rich and colourful history. This volume is, first and foremost, a story of the relations between space, time and navigation, from the rise of the chronometer in the United States to the Global Positioning System of satellites, for which the Naval Observatory provides the time to a billionth of a second per day. It is a story of the history of technology, in the form of telescopes, lenses, detectors, calculators, clocks and computers over 170 years. It describes how one scientific institution under government and military patronage has contributed, through all the vagaries of history, to almost two centuries of unparalleled progress in astronomy. Sky and Ocean Joined will appeal to historians of science, technology, scientific institutions and American science, as well as astronomers, meteorologists and physicists.
Download or read book The Order of Time written by Carlo Rovelli and published by Penguin. This book was released on 2019-12-10 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of TIME’s Ten Best Nonfiction Books of the Decade "Meet the new Stephen Hawking . . . The Order of Time is a dazzling book." --The Sunday Times From the bestselling author of Seven Brief Lessons on Physics, Reality Is Not What It Seems, Helgoland, and Anaximander comes a concise, elegant exploration of time. Why do we remember the past and not the future? What does it mean for time to "flow"? Do we exist in time or does time exist in us? In lyric, accessible prose, Carlo Rovelli invites us to consider questions about the nature of time that continue to puzzle physicists and philosophers alike. For most readers this is unfamiliar terrain. We all experience time, but the more scientists learn about it, the more mysterious it remains. We think of it as uniform and universal, moving steadily from past to future, measured by clocks. Rovelli tears down these assumptions one by one, revealing a strange universe where at the most fundamental level time disappears. He explains how the theory of quantum gravity attempts to understand and give meaning to the resulting extreme landscape of this timeless world. Weaving together ideas from philosophy, science and literature, he suggests that our perception of the flow of time depends on our perspective, better understood starting from the structure of our brain and emotions than from the physical universe. Already a bestseller in Italy, and written with the poetic vitality that made Seven Brief Lessons on Physics so appealing, The Order of Time offers a profoundly intelligent, culturally rich, novel appreciation of the mysteries of time.
