When this book first appeared in 1793, there had been no significant work on comets published in English since Edmond Halley's death some fifty years before. In Europe the field was dominated by French astronomers such as Pingre and Laplace, but their ornate styles were often difficult to translate. In this concise monograph, Sir Henry Englefield (c.1752 1822) draws both on this continental work and on his own correspondence with William Herschel to produce one of the few accessible manuals in English for the computation of cometary orbits. He includes mathematical examples as new formulae are introduced, along with detailed tables and appendices. Englefield's particular interest was in the development of scientific instruments suitable for travellers - he devised a portable telescope and lent his name to the Englefield mountain barometer - and his passion for efficiency shines through in this work, still valuable to researchers in the history of astronomy and comet science.

Describing how to investigate all kinds of galaxies through a multifrequency analysis, this text is divided into three different sections. The first describes the data currently available at different frequencies, from X-rays to UV, optical, infrared and radio millimetric and centimetric, while explaining their physical meaning. In the second section, the author explains how these data can be used to determine physical parameters and quantities, such as mass and temperature. The final section is devoted to describing how the derived quantities can be used in a multifrequency analysis to study such physical processes as the star formation cycle and constrain models of galaxy evolution.
As a result, observers will be able to interpret galaxies and their structure.

The Anunnaki is a legendary race that appears in the oldest documents preserved by mankind. They are said to inhabit an outermost planet that orbits our sun in an extremely elliptical orbit. Each time this planet gets near to the earth it creates planetary cataclysms. Many researchers claim it will be returning soon. The work of Zecharia Sitchin, author of the Earth Chronicles series of books, focuses on the Anunnaki and their previous visits. Many have asked Sitchin, "When will this planet return?" He never gave an exact date, but said it was more than halfway back. Jason Breshears gives an exact year, and does so confidently, due to his extensive research. He delves not only into historical records, as Sitchin had done, but also uses scientific cycles and mathematical formulas that relate to our concepts of planetary time and orbits. The historical records, chronologically presented by Breshears, help in identifying cyclical patterns. He also employs advanced geometry, interprets complex crop circle patterns, and uses biblical prophecy in support of some of the astronomical events he has predicted. He does not cover much on the mythical aspects of the Anunnaki gods themselves, but focuses more on the actual sciences that can predict their return. Ancient stories and carefully documented proof are two different things. For these reasons, this book is highly recommended.

Shrouded in poetry, the earliest accounts of Hindu astronomy can strike modern readers as obscure. They involve the marriage of the moon to twenty-seven princesses, a war between gods and giants, and shadows that give birth to planets. In this fascinating study, first published in Calcutta in 1823 and reissued here in the 1825 edition, John Bentley (c.1750 1824) strives to strip back the mythical aspects of the stories to reveal their foundations. He points out that early Hindu astronomers divided the night sky into twenty-seven sections; that a solar eclipse could have been described as an epic war between light and dark; and that Saturn is often observed in the Earth's shadow. Using data from modern astronomical tables, he dates events, texts and people, whether mythical or factual, as well as charting the history of Indian astronomy from its earliest records to its modern developments.

"Exceptionally absorbing and thrilling. ... Masterful." -Nature A "magnificent" (Scientific American), genre-defying narrative of the most ambitious science project ever conceived: NASA's deep space mission to Europa, the Jovian moon where might swim the first known alien life in our solar system In the spirit of Tom Wolfe and John McPhee, The Mission is an exuberant master class of creative nonfiction that reveals how a motley, determined few expanded the horizon of human achievement. When scientists discovered the first ocean beyond Earth, they had two big questions: "Is it habitable?" and "How do we get there?" To answer the first, they had to solve the second, and so began a vivacious team's twenty-year odyssey to mount a mission to Europa, the ocean moon of Jupiter. Standing in their way: NASA, fanatically consumed with landing robots on Mars; the White House, which never saw a science budget it couldn't cut; Congress, fixated on going to the moon or Mars-anywhere, really, to give astronauts something to do; rivals in academia, who wanted instead to go to Saturn; and even Jupiter itself, which guards Europa in a pulsing, rippling radi ation belt-a halo of death whose conditions are like those that follow a detonated thermonuclear bomb. The Mission is the Homeric, never-before-told story of modern space exploration, and a magnificent portrait of the inner lives of scientists who study the solar system's mysterious outer planets. David W. Brown chronicles the remarkable saga of how Europa was won, and what it takes to get things done-both down here, and up there.

This book treats the classical problem of gravitational physics within Einstein's theory of general relativity. It presents basic principles and equations needed to describe rotating fluid bodies, as well as black holes in equilibrium. It then goes on to deal with a number of analytically tractable limiting cases, placing particular emphasis on the rigidly rotating disc of dust. The book concludes by considering the general case using powerful numerical methods that are applied to various models, including the classical example of equilibrium figures of constant density. Researchers in general relativity, mathematical physics, and astrophysics will find this a valuable reference book on the topic. A related website containing codes for calculating various figures of equilibrium is available at www.cambridge.org/9781107407350.

General relativity is a cornerstone of modern physics, and is of major importance in its applications to cosmology. Plebanski and Krasinski are experts in the field and in this book they provide a thorough introduction to general relativity, guiding the reader through complete derivations of the most important results. Providing coverage from a unique viewpoint, geometrical, physical and astrophysical properties of inhomogeneous cosmological models are all systematically and clearly presented, allowing the reader to follow and verify all derivations. For advanced undergraduates and graduates in physics and astronomy, this textbook will enable students to develop expertise in the mathematical techniques necessary to study general relativity.

The Sun continually ejects matter into space, blowing a huge bubble of supersonic plasma. This solar wind bathes the whole solar system and shapes all planetary environments. The growth of space technology has considerably increased our knowledge of this medium. This 2007 book presents an introduction to the subject, starting with basic principles and including all the latest advances from space exploration and theory. It contains a short introduction to plasma physics and discusses the structure of the solar interior and atmosphere, the production of solar wind and its perturbations. It explains the objects of the Solar System, from dust to comets and planets, and their interaction with the solar wind. The final sections explore the astrophysical point of view. The topics are treated at various levels of difficulty both qualitatively and quantitatively. This book will appeal to graduate students and researchers in earth and atmospheric sciences, and astrophysics.

This is the ideal resource for beginners and experienced stargazers in the United States and Canada, and has been updated to include new and practical information covering events occurring in North America's night sky throughout 2021. This practical guide is both an easy introduction to astronomy and a useful reference for seasoned stargazers. Now includes a section on comets and a map of the moon. Designed specifically for North America. Written and illustrated by astronomical experts, Storm Dunlop and Wil Tirion, and approved by the astronomers of the Royal Observatory Greenwich. Content includes: * Advice on where to start looking. * Easy-to-use star maps for each month with descriptions of what to see. * Positions of the moon and visible planets. * Details of objects and events in 2021. * Now in three editions: Britain and Ireland; North America; Southern Hemisphere.

The focus of this book is the interplay between ancient astronomy, meteorology, physics and calendrics. It looks at a set of popular instruments and texts (parapegmata) used in antiquity for astronomical weather prediction and the regulation of day-to-day life. Farmers, doctors, sailors and others needed to know when the heavens were conducive to various activities, and they developed a set of fairly sophisticated tools and texts for tracking temporal, astronomical and weather cycles. Sources are presented in full, with an accompanying translation. A comprehensive analysis explores questions such as: What methodologies were used in developing the science of astrometeorology? What kinds of instruments were employed and how did these change over time? How was the material collected and passed on? How did practices and theories differ in the different cultural contexts of Egypt, Mesopotamia, Greece and Rome?

Throughout her lifetime, Margaret Bryan (fl. 1795 1816) ran several schools for girls. Although science and maths were not usually considered suitable subjects for young women, Bryan was convinced that the use of one's reasoning faculties was all but a religious obligation. She taught across a huge range of topics, including optics, trigonometry and the history of astronomy. This book is a collection of ten of her lectures and was first published in 1797. Largely non-technical and written for those without a thorough knowledge of mathematics, the lectures explain contemporary science as simply as possible, using everyday experiments and clear diagrams. From astronomical predictions for the flooding of the Nile in Ancient Egypt to Newton's theory of the aether, the material covered is still readable and fascinating today, and represents a remarkable example of female scholarship long before the acceptance of the first woman into the Royal Society.

A history of the innovation and effects of the French Republican Calendar. The French Republican Calendar was perhaps the boldest of all the reforms undertaken in Revolutionary France. Introduced in 1793 and used until 1806, the Calendar not only reformed the weeks and months of the year, but decimalisedthe hours of the day and dated the year from the beginning of the French Republic. This book not only provides a history of the calendar, but places it in the context of eighteenth-century time-consciousness, arguing that the French were adept at working within several systems of time-keeping, whether that of the Church, civil society, or the rhythms of the seasons. Developments in time-keeping technology and changes in working patterns challenged early-modern temporalities, and the new calendar can also be viewed as a step on the path toward a more modern conception of time. In this context, the creation of the calendar is viewed not just as an aspect of the broader republican programme of social, political and cultural reform, but as a reflection of a broader interest in time and the culmination of several generations' concern with how society should be policed. Matthew Shaw is a curatorat the British Library, London.

James Croll (1821-90) was self-educated, but on gaining a post at the Glagow Andersonian Museum had the time to explore his academic interests. Despite his lack of formal training, he quickly became a leading light of the Scottish Royal Geological Society. Using physics, mathematics, geology and geography he explored the pressing scientific questions of the time. In this, his final book, published in 1889, Croll divides his focus between 'the probable origin of meteorites, comets and nebulae', the age of the sun and the impact of the pre-nebular condition of the universe on star evolution. Using both proven facts and theories, Croll explores the ideas and hypotheses then current, frequently crediting colleagues for their work, and building on it. Croll, who from humble beginnings became a Fellow of The Royal Society and of St Andrew's University, writes in a style which makes his works accessible to a lay readership.

This book, first published by Cambridge University Press in 1955, investigates the origins of The Equatorie of the Planetis, a fourteenth-century manuscript in the library of Peterhouse, Cambridge. Dr Price, a historian of science, examines the idea that it was composed and written by Geoffrey Chaucer. The chapters discuss the problems of ascription, bibliography and palaeography as well as giving an account of the theories and history of medieval astronomy and the Equatorie instrument. This edition reproduces, translates and describes the complete manuscript and uses various photographic techniques to examine erased words and analyse Chaucer's signature on the document. There are facsimiles of pages from the astronomical tables together with an analysis of their contents, and a selection of extracts from other unpublished Middle English astronomical texts are included in the appendices. A glossary is provided by R. M. Wilson.

One day, astrobiologists could make the most fantastic discovery of all time: the detection of complex extraterrestrial life. As space agencies continue to search for life in our Universe, fundamental questions are raised: are we awake to the revolutionary effects on human science, society and culture that alien contact will bring? And how is it possible to imagine the unknown? In this book, Mark Brake tells the compelling story of how the portrayal of extraterrestrial life has developed over the last two and a half thousand years. Taking examples from the history of science, philosophy, film and fiction, he showcases how scholars, scientists, film-makers and writers have devoted their energies to imagining life beyond this Earth. From Newton to Kubrick, and Lucian to H. G. Wells, this is a fascinating account for anyone interested in the extraterrestrial life debate, from general readers to amateur astronomers and undergraduate students studying astrobiology.

Emission lines provide a powerful tool to study the physical properties and chemical compositions of astrophysical objects in the Universe, from the first stars to objects in our galaxy. The analysis of emission lines allows us to estimate the star formation rate and initial mass function of ionizing stellar populations, and the properties of active galactic nuclei. This book presents lectures from the eighteenth Winter School of the Canary Islands Astrophysics Institute (IAC), devoted to emission lines and the astrophysical objects that produce them. Written by prestigious researchers and experienced observers, it covers the formation of emission lines and the different sources that produce them. It shows how emission lines in different wavelengths, from ultraviolet to near infrared, can provide essential information on understanding the formation and evolution of astrophysical objects. It also includes practical tutorials for data reduction, making this a valuable reference for researchers and graduate students.

Cosmic Roots traces the five-thousand-year conflict between science and religion - and how it has shaped our modern secular worldview.Told with rare clarity and striking insight, this fascinating and thought-provoking book focuses on the history of cosmology and its sister science astronomy. For it was discoveries within these great disciplines which first led to the conflict between science and religion. The story begins with the cosmological beliefs of the ancients - from the flat Earth models of the Sumerians and Hebrews to the Greek notion of the orbits of planets as divine circles. Topics progress from Aristotle and Ptolemy's integrated planetary models to the Sun-centered cosmologies of Copernicus, Galileo, Kepler, and the great Isaac Newton. Their combined scientific achievements stand as testimony to the power and imagination of the human mind.This meticulously researched narrative also traces the roots of Western religion, based on historical events and archeological evidence. It takes us on a captivating journey through Western religious history - from ancient paganism to the ethical monotheism of the Hebrews, Christians, and Moslems. Along the way, we follow the rise and fall of civilizations, of empires, cycles of war and peace, unification and division.The book concludes with how Darwin came up with his theory of evolution and the impact of modern physics on religious beliefs. The cumulative effect of the scientific discoveries presented in Cosmic Roots has, for better or for worse, led to the separation of science and religion we see in Western culture today.

In this extraordinarily accessible and enormously witty book, the Nobel Prize-winning physicist Leon Lederman guides us on a fascinating tour of the history of particle physics. The book takes us from the Greeks' earliest scientific observations through Einstein and beyond in an inspiring celebration of human curiosity. It ends with the quest for the Higgs boson, nicknamed the God Particle, which scientists hypothesize will help unlock the last secrets of the subatomic universe. With a new preface by Lederman, The God Particle will leave you marveling at our continuing pursuit of the infinitesimal.

Originally published in 1921, this book provides a concise guide to the Western Calendar. Information is provided on its origin and development, the principles of its construction, the purposes for which it is employed, its deficiencies and the means by which these deficiencies can be amended. The text also contains a list of authorities on the calendar and a table of astronomical data in mean solar time. This book will be of value to anyone with an interest in the Western Calendar and the measurement of time in general.

Astrobiology is an expanding, interdisciplinary field investigating the origin, evolution and future of life in the universe. Tackling many of the foundational debates of the subject, from discussions of cosmological evolution to detailed reviews of common concepts such as the 'Rare Earth' hypothesis, this volume is the first systematic survey of the philosophical aspects and conundrums in the study of cosmic life. The author's exploration of the increasing number of cross-over problems highlights the relationship between astrobiology and cosmology and presents some of the challenges of multidisciplinary study. Modern physical theories dealing with the multiverse add a further dimension to the debate. With a selection of beautifully presented illustrations and a strong emphasis on constructing a unified methodology across disciplines, this book will appeal to graduate students and specialists who seek to rectify the fragmented nature of current astrobiological endeavour, as well as curious astrophysicists, biologists and SETI enthusiasts.

'A gripping exploration of one of the most fundamental, but also perplexing aspects of existence.' PROF. LEWIS DARTNELL, author of Origins 'Such an enjoyable read...full of delightful nuggets that you will want to impress your friends and family with.' PROF. JIM AL-KHALILI, NYT bestselling author of The World According to Physics 'This is a lovely, fascinating book. It blends history, geology, chemistry, philosophy and, of course, physics in a way that's delightful to read.' - ABIGAIL BEALL, author of The Art of Urban Astronomy -------- Discover the secrets of one of the biggest puzzles in our history - Time. As a subject, it has perplexed and fascinated generations of scientists, historians and more, and continues to spark the most intriguing questions being asked in science today. Can time be stopped? Is time travel possible? Does time even exist...? In these ten bite-sized essays, Colin Stuart delves into these big questions and uncovers the most awe-inspiring and revealing things we should all know about time. Perfect for readers of Carlo Rovelli and anyone fascinated by space and the universe, this is a must-read for those short on time, but not curiosity.

William Parsons (1800 67), third Earl of Rosse, was responsible for building in 1845 the largest telescope of his time, nicknamed the 'Leviathan'. It enabled the Earl to make unprecedented astronomical discoveries, including the discovery of the spiral nature of galaxies. Rosse (then Lord Oxmantown) began publishing scientific papers on telescopes in 1828, and for the rest of his life made regular contributions to scientific journals in Ireland, England and Scotland. He served as President of the British Association for the Advancement of Science in 1843, and of the Royal Society from 1848 to 1854, and his addresses to those societies are also included in this collection. Edited by his younger son, the engineer Sir Charles Parsons (1854 1931) and published in 1926, these papers show the wide range of the Earl's interests, from astronomy and telescopes to ancient bronze artefacts and the use of iron in shipbuilding.

J. P. Nichol (1804-59), astronomer and political economist, was Regius Professor of Astronomy at the University of Glasgow. He brought astronomy to a non-scientific audience through his enthusiastic public lectures and astronomy books. His works include the popular Views of the Architecture of the Heavens (1837; also reissued in this series) in which he supported the nebular hypothesis, which in modified form is the model of star formation most widely accepted today. Neptune was (in 1846) the first planet to be discovered by mathematical prediction rather than empirical observation, and in this book, first published in 1855, Nichol describes that discovery to a lay readership. Part 1 is an exposition of the then current view of the solar system and the research and discoveries which led to that view; Part 2 is dedicated to Neptune; while the third part explains the controversies over the planet's discovery.

Used to describe both binary systems and optical doubles, the term 'double star' has been familiar to astronomers since the seventeenth century. This book, first published in 1879, outlines the history of their study, and describes the methods and equipment needed in order to observe the fascinating phenomenon. Written for non-specialists by Fellows of the Royal Society Edward Crossley (1841-1904), Joseph Gledhill (1837-1906) and James M. Wilson (1836-1931), the catalogue of over 1,200 double stars appears beside detailed notes and does not assume mathematical expertise. Also offered are a fully worked example of how to find the orbit of a binary star, and illustrations of telescopes, observatories, and even custom-made observation chairs. This reissue includes the supplement with corrections and notes published in 1880. A standard reference text in the late nineteenth century, the work remains a resources for students and scholars of the history of astronomy.