In 2004 a rock star, a TV astronomer and a young research astronomer sat down to write the story of the Universe in the order in which it happened, from its birth at the Big Bang 13.7 billion years ago, through to its ultimate demise in the infinitely far future. The aim of this book is to explain the Big Bang and everything that followed in a way that made sense, in the strict order in which events occurred, and without using maths, so it would be understandable to everyone, regardless of educational background. The original edition of Bang! was a bestseller, and a go-to for anyone wanting to understand the story of the origins and evolution of our Universe that did not duck the science. Since the first edition, thousands of planets have been discovered, the 'habitable zone' has expanded and a flotilla of new satellites has explored our own solar system, bringing back fresh images and new science. In this book all the latest findings about the evolution of stars and galaxies are included, and the current thinking about our ultimate origins. The latest ideas about Dark Matter and Dark Energy are explained, all illustrated with new images from the world's largest telescopes and space missions. This is the new, updated, popular guide to 'Life, the Universe, and Everything' - The Complete History of the Universe.

The idea of time travel has tantalized humans for millennia. We can send humans into space, but roaming through time has eluded us. Do the laws of physics demand that we stay trapped in the present? This book examines the past, present and future states of time-travel research, but, also, looks at the bizarre anomalies of time itself.

This ground-breaking book addresses transformations in the understanding of time and the generation and degeneration of value at the cutting edge of modernity and postmodernity. The book is a multi-disciplinary contribution to current work in the social sciences, in cultural theory and in more pragmatic areas such as advertising and global communication. It brings together the work of distinguished international scholars and new young thinkers.

"Time and Value" contains an exploration of such themes as the timescapes of nature and the impact of disease, ecological catastrophe, and many other issues. In theoretical terms, the collection draws in particular upon writers such as Jacques Derrida, Michel Serres, Paul Virilio and Martin Heidegger, whose work is particularly relevant in considering how technology has had a powerful impact upon the construal of time and the explanation of how time constructs human lives in late modernity.

The compression of time and its fragmentation correspond with a collapse in and reconstruction of value systems. This deconstruction of time is juxtaposed with a range of possibilities that emerge when the specific times of the media, literature, art, virtuality, nature, performance, fashion, semiotic codings, spirituality, the self and the body are understood as creative opportunity.

Our engagement with time is a ubiquitous feature of our lives. We are aware of time on many scales, from the briefest flicker of change to the way our lives unfold over many years. But to what extent does this encounter reveal the true nature of temporal reality? To the extent that temporal reality is as it seems, how do we come to be aware of it? And to the extent that temporal reality is not as it seems, why does it seem that way? These are the central questions addressed by Simon Prosser in Experiencing Time. These questions take on a particular importance in philosophy for two reasons. Firstly, there is a view concerning the metaphysics of time, known as the B-theory of time, according to which the apparently dynamic quality of change, the special status of the present, and even the passage of time are all illusions. Instead, the world is a four-dimensional space-time block, lacking any of the apparent dynamic features of time. If the B-theory is correct, as the book argues, then it must be explained why our experiences seem to tell us otherwise. Secondly, experiences of temporal features such as changes, rates and durations are of independent interest because of certain puzzles that they raise, the solutions to which may shed light on broader issues in the philosophy of mind.

This book is about how big is the universe and how small are quarks, and what are the sizes of dozens of things between these two extremes. It describes the sizes of atoms and planets, quarks and galaxies, cells and sequoias. It is a romp through forty-five orders of magnitude from the smallest sub-nuclear particles we have measured, to the edge of the observed universe. It also looks at time, from the epic age of the cosmos to the fleeting lifetimes of ethereal particles. It is a narrative that trips its way from stellar magnitudes to the clocks on GPS satellites, from the nearly logarithmic scales of a piano keyboard through a system of numbers invented by Archimedes and on to the measurement of the size of an atom. Why do some things happen at certain scales? Why are cells a hundred thousandths of a meter across? Why are stars never smaller than about 100 million meters in diameter? Why are trees limited to about 120 meters in height? Why are planets spherical, but asteroids not? Often the size of an object is determined by something simple but quite unexpected. The size of a cell and a star depend in part on the ratio of surface area to volume. The divide between the size of a spherical planet and an irregular asteroid is the balance point between the gravitational forces and the chemical forces in nature. Most importantly, with a very few basic principles, it all makes sense. The world really is a most reasonable place.

The theory of relativity convinced many philosophers that space and time are fundamentally alike, and that they are mere aspects of a more fundamental space-time. In The Nature of Time, Ulrich Meyer argues against this consensus view. Instead of a 'spatial' account of time that treats instants like positions in space, he presents the first comprehensive defense of a 'modal' account that emphasizes the similarities between times and the possible worlds in modal logic. Modal accounts of time are naturally cast in terms of a tense logic that accounts for temporal distinctions in terms of primitive tense operators. Tense logic was originally developed to provide a linguistic theory of verb tense in natural languages, but here Meyer proposes that it can be treated as a metaphysical theory of the nature of time. Contrary to popular belief, such modal accounts of time do not commit us to the view that there is something metaphysically special about the present moment, and they are easily reconciled with the theory of relativity.

"A discussion of the historical development of our ideas of time as they relate to nature, human nature and society. . . . The excellence of "The Discovery of Time" is unquestionable."--Martin Lebowitz, "The Kenyon Review"

A revolution in clock technology in England during the 1660s allowed people to measure time more accurately, attend to it more minutely, and possess it more privately than previously imaginable. In "Telling Time," Stuart Sherman argues that innovations in prose emerged simultaneously with this technological breakthrough, enabling authors to recount the new kind of time by which England was learning to live and work.
Through brilliant readings of Samuel Pepys's diary, Joseph Addison and Richard Steele's daily "Spectator," the travel writings of Samuel Johnson and James Boswell, and the novels of Daniel Defoe and Frances Burney, Sherman traces the development of a new way of counting time in prose--the diurnal structure of consecutively dated installments--within the cultural context of the daily institutions which gave it form and motion. "Telling Time" is not only a major accomplishment for seventeenth- and eighteenth-century literary studies, but it also makes important contributions to current discourse in cultural studies.

AN OBSERVER BOOK OF THE YEAR From the acclaimed author of The Information and Chaos, a mind-bending exploration of time travel: its subversive origins, its evolution in literature and science, and its influence on our understanding of time itself. Gleick's story begins at the turn of the twentieth century with the young H. G. Wells writing and rewriting the fantastic tale that became his first book, an international sensation, The Time Machine. A host of forces were converging to transmute the human understanding of time, some philosophical and some technological - the electric telegraph, the steam railroad, the discovery of buried civilisations, and the perfection of clocks. Gleick tracks the evolution of time travel as an idea in the culture - from Marcel Proust to Doctor Who, from Woody Allen to Jorge Luis Borges. He explores the inevitable looping paradoxes and examines the porous boundary between pulp fiction and modern physics. Finally, he delves into a temporal shift that is unsettling our own moment: the instantaneous wired world, with its all-consuming present and vanishing future.

Two systems of timekeeping were in concurrent use in Venice between 1582 and 1797. Government documents conformed to the Venetian year (beginning 1 March), church documents to the papal year (from 1 January). "Song and Season" defines the many ways in which time was discussed, resolving a long-standing fuzziness imposed on studies of personnel, institutions, and cultural dynamics by dating conflicts. It is in this context that the standardization of timekeeping coincided with the collapse of the "dramma per musica" and the rise of scripted comedy and the "opera buffa," Selfridge-Field discloses fascinating relationships between the musical stage and the cultures it served, such as the residues of medieval liturgical feasts embedded in the theatrical year. Such associations were transmuted into lingering seasonal associations with specific dramatic genres. Interactions between culture and chronology thus operated on both general and specific levels. Both are fundamental to understanding theatrical dynamics of the sixteenth to eighteenth centuries.

One Time Fits All provides the first full framework for understanding attributes of civil time, which is used throughout the world today. It focuses on three components of uniform time all linked to the prime meridian at Greenwich-the International Date Line, the worldwide system of Standard Time zones, and Daylight Saving Time (Summer Time)-tracing the story of their beginnings and eventual acceptance from original sources in Europe, Great Britain, Canada, and the United States. The book concludes with an examination of the recent changes in America's Daylight Saving Time that are scheduled to take effect in 2007.

The arrow of time refers to the curious asymmetry that distinguishes the future from the past. Reversing the Arrow of Time argues that there is an intimate link between the symmetries of 'time itself' and time reversal symmetry in physical theories, which has wide-ranging implications for both physics and its philosophy. This link helps to clarify how we can learn about the symmetries of our world; how to understand the relationship between symmetries and what is real, and how to overcome pervasive illusions about the direction of time. Roberts explains the significance of time reversal in a way that intertwines physics and philosophy, to establish what the arrow of time means and how we can come to know it. This book is both mathematically and philosophically rigorous yet remains accessible to advanced undergraduates in physics and philosophy of physics. This title is also available as Open Access on Cambridge Core.

During the fifteenth and sixteenth centuries technical chronology, the study of calendars and of dates in ancient and medieval history, was both a fashionable and a controversial discipline. Theologians debated the dates of the Creation, the Flood, and the Crucifixion. Astronomers and historians argued about the identity of the eclipses that could supply absolute dates for events long past. Classical scholars reconstructed the religious beliefs and political practices that had governed the Greek and Roman calendars. Clerics and consultant experts, finally, debated what was to be done to mend the obviously faulty calendar of the western Church. Poliziano and Pico, Luther and Melanchthon, Copernicus and Kepler all studied and wrote about chronology. Late in the 1570s Joseph Scaliger (1540-1609) turned his attention to this field. He had already established himself as an innovative and ingenious editor of Latin texts, as the first volume of this study showed. But he now became one of the most celebrated scholars in Europe. He synthesized the work of dozens of other scholars, many of them now forgotten. He started or took part in many technical debates. And on such central problems as the date and nature of the Last Supper, the reliability of the various Old Testament texts, and the worth of the fragmentary historians of the ancient Near East, he showed remarkable erudition and insight. This book tells the stories of chronology and of Scaliger himself. It describes the scholarly circles in which he moved - above all the University of Leiden, the most innovative in Europe, where he spent the last decade and a half of his life. And it reconstructs his relations with contemporary scholars and scientists - notably Tycho Brahe and Johannes Kepler - and his remarkable, if wholly unofficial, career as a teacher. It is a sequel to volume I: Textual Criticism and Exegesis, published in 1983.

A readable and entertaining look at how Einstein's special theory of relativity gives us a new understanding of the nature of time Relativity ought to be an important part of everyone's education. Its subject is time, with which we all think we are familiar. Einstein's special theory of relativity reveals that some of our most intuitive notions about time are shockingly wrong. This clear, lively, and informal exposition of special relativity takes a highly original approach to introduce readers to the true nature of time. It is accessible to anyone who remembers a little high school algebra and elementary geometry. It's About Time offers deep insights to curious readers who have no technical scientific background.

In "It's About Time," N. David Mermin asserts that relativity ought to be an important part of everyone's education--after all, it is largely about time, a subject with which all are familiar. The book reveals that some of our most intuitive notions about time are shockingly wrong, and that the real nature of time discovered by Einstein can be rigorously explained without advanced mathematics. This readable exposition of the nature of time as addressed in Einstein's theory of relativity is accessible to anyone who remembers a little high school algebra and elementary plane geometry.

The book evolved as Mermin taught the subject to diverse groups of undergraduates at Cornell University, none of them science majors, over three and a half decades. Mermin's approach is imaginative, yet accurate and complete. Clear, lively, and informal, the book will appeal to intellectually curious readers of all kinds, including even professional physicists, who will be intrigued by its highly original approach.

Days, months, and years were given to us by nature, but we invented the week for ourselves. There is nothing inevitable about a seven-day cycle, or about any other kind of week; it represents an arbitrary rhythm imposed on our activities, unrelated to anything in the natural order. But where the week exists--and there have been many cultures where it doesn't--it is so deeply embedded in our experience that we hardly ever question its rightness, or think of it as an artificial convention; for most of us it is a matter of 'second nature.'

How old is Earth? Can we look back in time? How long is a light year? How short is a femtosecond? What is Greenwich Mean Time? How did astronauts tell the time on the Moon? When did time begin? It's high time you knew the answers to these and many more intriguing questions, so why not pass the time reading this lighthearted, illustrated miscellany, packed with hundreds of amazing facts from the time experts at the Royal Observatory. In less than no time, you'll have discovered the myriad of influences that time has on our daily lives.

What is time? What does it mean for time to pass? Is it possible to travel in time? What is the difference between the past and future? Until the work of Newton, these questions were purely topics of philosophical speculation. Since then we've learned a great deal about time, and its study has moved from a subject of philosophical reflection to instead became part of the subject matter of physics. This Very Short Introduction introduces readers to the current physical understanding of the direction of time, from the Second Law of Thermodynamics to the emergence of complexity and life. Jenann Ismael charts the line of development in physical theory from Newton, via Einstein's Theory of Relativity, to the current day. Einstein's innovations led to a vision of time very different from the familiar time of everyday sense. In this new vision, time is one of the dimensions in which the universe is extended alongside the spatial dimensions. The universe appears as a static block of events, in which there is no more a difference between past and future than there is between east and west. Discussing the controversy and philosophical confusion which surrounded the reception of this new vision, Ismael also covers the contemporary mixture of statistical mechanics, cognitive science, and phenomenology that point the way to reconciling the familiar time of everyday sense with the vision of time presented in Einstein's theories. Very Short Introductions: Brilliant, Sharp, Inspiring ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

The Gregorian calendar reform of 1582, which provided the basis for the civil and Western ecclesiastical calendars still in use today, has often been seen as a triumph of early modern scientific culture or an expression of papal ambition in the wake of the Counter-Reformation. Much less attention has been paid to reform's intellectual roots in the European Middle Ages, when the reckoning of time by means of calendrical cycles was a topic of central importance to learned culture, as impressively documented by the survival of relevant texts and tables in thousands of manuscripts copied before 1500. For centuries prior to the Gregorian reform, astronomers, mathematicians, theologians, and even Church councils had been debating the necessity of improving or emending the existing ecclesiastical calendar, which throughout the Middle Ages kept losing touch with the astronomical phenomena at an alarming pace. Scandalous Error is the first comprehensive study of the medieval literature devoted to the calendar problem and its cultural and scientific contexts. It examines how the importance of ordering liturgical time by means of a calendar that comprised both solar and lunar components posed a technical-astronomical problem to medieval society and details the often sophisticated ways in which computists and churchmen reacted to this challenge. By drawing attention to the numerous connecting paths that existed between calendars and mathematical astronomy between the Fall of Rome and the end of the fifteenth century, the volume offers substantial new insights on the place of exact science in medieval culture.

The prophet Muhammad and the early Islamic community radically redefined the concept of time that they had inherited from earlier religions' beliefs and practices. This new temporal system, based on a lunar calendar and era, was complex and required sophistication and accuracy. From the ninth to the sixteenth centuries, it was the Muslim astronomers of the Ottoman, Safavid and Mughal empires who were responsible for the major advances in mathematics, astronomy and astrology. This fascinating study compares the Islamic concept of time, and its historical and cultural significance, across these three great empires. Each empire, while mindful of earlier models, created a new temporal system, fashioning a new solar calendar and era and a new round of rituals and ceremonies from the cultural resources at hand. This book contributes to our understanding of the Muslim temporal system and our appreciation of the influence of Islamic science on the Western world.

The Letter and Prologue on Easter of Theophilus of Alexandria (385-412), the 95-year list of Paschal data compiled by Cyril (412-444), and the Prologue or Praefatio to that list written in Latin about 482 in the persona of Cyril are among the foundational documents for our knowledge of the Alexandrian Easter cycle. That cycle, through the Latin versions of Dionysius Exiguus, Bede, and others was the standard method for determining the date of Easter in the western churches until the end of the sixteenth century. There has been no modern critical edition of either Prologue since those of Bruno Krusch in 1880. This new edition of the texts is based on Alden A. Mosshammer's discovery or rediscovery of manuscript witnesses unknown to Krusch and overlooked by more recent scholars who have engaged these texts. The historical introduction summarizes current knowledge about the history of Easter calculations in early Christian communities, including a new hypothesis attributing the Alexandrian cycle in its final form to the mathematician and astronomer Theon of Alexandria working in the 370's. Although both texts have already been translated into English, Mosshammer's new translations are based on his new reconstruction of the texts. The commentaries address many issues currently under debate in historical scholarship, such as the origin of 21 March as the conventional date of the vernal equinox. The newly reconstructed text of the Prologue attributed to Cyril and Mosshammer's extensive commentary make that difficult text intelligible for the first time.

Our engagement with time is a ubiquitous feature of our lives. We are aware of time on many scales, from the briefest flicker of change to the way our lives unfold over many years. But to what extent does this encounter reveal the true nature of temporal reality? To the extent that temporal reality is as it seems, how do we come to be aware of it? And to the extent that temporal reality is not as it seems, why does it seem that way? These are the central questions addressed by Simon Prosser in Experiencing Time. These questions take on a particular importance in philosophy for two reasons. Firstly, there is a view concerning the metaphysics of time, known as the B-theory of time, according to which the apparently dynamic quality of change, the special status of the present, and even the passage of time are all illusions. Instead, the world is a four-dimensional space-time block, lacking any of the apparent dynamic features of time. If the B-theory is correct, as the book argues, then it must be explained why our experiences seem to tell us otherwise. Secondly, experiences of temporal features such as changes, rates and durations are of independent interest because of certain puzzles that they raise, the solutions to which may shed light on broader issues in the philosophy of mind.

Originally published in 1926, this book contains a general history of the measurement of time now known as the week. Colson begins with the seven-day cycle devised by the Jews and examines how different theologies gave rise to different names and systems of measurement for each day of the week and how the week eventually became standardised. This book will be of value to anyone with an interest in ancient astronomy and the history of time keeping.

Time is an illusion. Although the laws of physics create a powerful impression that time is flowing, in fact there are only timeless 'nows'. In THE END OF TIME, the British theoretical physicist Julian Barbour describes the coming revolution in our understanding of the world: a quantum theory of the universe that brings together Einstein's general theory of relativity, which denies the existence of a unique time, and quantum mechanics, which demands one. Barbour believes that only the most radical of ideas can resolve the conflict between these two theories: that there is, quite literally, no time at all. This is the first full-length account of the crisis in our understanding that has enveloped quantum cosmology. Unifying thinking that has never been brought together before in a book for the general reader, Barbour reveals the true architecture of the universe and demonstrates how physics is coming up sharp against the extraordinary possibility that the sense of time passing emerges from a universe that is timeless. The heart of the book is the author's lucid description of how a world of stillness can appear to be teeming with motion: in this timeless world where all possible instants coexist, complex mathematical rules of quantum mechanics bind together a special selection of these instants in a coherent order that consciousness perceives as the flow of time. Finally, in a lucid and eloquent epilogue, the author speculates on the philosophical implications of his theory: Does free will exist? Is time travel possible? How did the universe begin? Where is heaven? Does the denial of time make life meaningless? Written with exceptional clarity and elegance, this profound and original work presents a dazzlingly powerful argument that all will be able to follow, but no-one with an interest in the workings of the universe will be able to ignore.