Download or read book On Sunspots written by Galileo Galilei and published by University of Chicago Press. This book was released on 2010-10-30 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galileo’s telescopic discoveries, and especially his observation of sunspots, caused great debate in an age when the heavens were thought to be perfect and unchanging. Christoph Scheiner, a Jesuit mathematician, argued that sunspots were planets or moons crossing in front of the Sun. Galileo, on the other hand, countered that the spots were on or near the surface of the Sun itself, and he supported his position with a series of meticulous observations and mathematical demonstrations that eventually convinced even his rival. On Sunspots collects the correspondence that constituted the public debate, including the first English translation of Scheiner’s two tracts as well as Galileo’s three letters, which have previously appeared only in abridged form. In addition, Albert Van Helden and Eileen Reeves have supplemented the correspondence with lengthy introductions, extensive notes, and a bibliography. The result will become the standard work on the subject, essential for students and historians of astronomy, the telescope, and early modern Catholicism.
Download or read book Nature s Third Cycle written by Arnab Rai Choudhuri and published by Oxford University Press, USA. This book was released on 2015 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cycle of day and night and the cycle of seasons are two familiar natural cycles around which many human activities are organized. But is there a third natural cycle of importance for us humans? On 13 March 1989, six million people in Canada went without electricity for many hours: a large explosion on the sun was discovered as the cause of this blackout. Such explosions occur above sunspots, dark features on the surface of the Sun that have been observed through telescopes since the time of Galileo. The number of sunspots has been found to wax and wane over a period of 11 years. Although this cycle was discovered less than two centuries ago, it is becoming increasingly important for us as human society becomes more dependent on technology. For nearly a century after its discovery, the cause of the sunspot cycle remained completely shrouded in mystery. The 1908 discovery of strong magnetic fields in sunspots made it clear that the 11-year cycle is the magnetic cycle of the sun. It is only during the last few decades that major developments in plasma physics have at last given us the clue to the origins of the cycle and how the large explosions affecting the earth arise. Nature's Third Cycle discusses the fascinating science behind the sunspot cycle, and gives an insider's perspective of this cutting-edge scientific research from one of the leaders of the field.
Download or read book Sunspots and Their Effects written by Harlan True Stetson and published by Macritchie Press. This book was released on 2008-11 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: AND Their Effects byHARLAN TRUE STETSON Research Associate at the Massachusetts Institute of Technology Author of B STARS AND THE STAJLS Yorfc WHITTLESEY HOUSE London MCGRAW-HILL BOOK COMPANY, INC. of and trireless i t tie cii Sciilt field of solar - t erTes trial FOREWARNING THE near approach of another sunspot maximum with the accompanying interest shown by the press and the general public gives the occasion for a book on sunspot s. So much has been said about the possibilities of sunspots affecting the earth and human affairs that a candid discussion of sunspots and their effects is due the general reader who would keep himself informed of trends in science. Sunspots have been blamed for calamities and misfortunes that run the gamut from Florida hurricanes to financial panics. Is there any basis whatever for such assumptions Since we are all more interested in ourselves than we are in things, the book has been written from the human point of view. While statements have been qualified, various possible hypotheses have been dis cussed which bear upon the question of solar dis turbances and affairs on the earth. Perhaps all too long has the reading public been dependent upon the technical material in textbooks on astronomy for a knowledge of sunspots. Such textbooks which must deal only with well-established facts cannot naturally try to discuss speculative questions. This book therefore departs from the usual type of book on science in that it frankly presents questionable material as well as the results of more completely Forewarning established facts from which the reader may draw his own conclusions with respect to inferences not yet fully established as weU as to those which may beregarded as beyond debate. As the book is intended to be distinctly popular, the more speculative material which intrigues the imagination has been presented in the earlier part, leaving the more well-established effects of sunspots upon the earth to the later chapters. The book undoubtedly raises more questions than it answers, and will, it is hoped, suggest attention to some of the less conventional aspects of the question concerning the influence of the sunspots on world events. So many apparently serious articles have been written concerning sunspots and the business cycle that a chapter is devoted to the more plausible hypoth eses that may be worth investigation If the author appears noncommittal in his interpretation of some of the more startling presentations, it is because a scientist cannot by nature be otherwise. On the other hand, I have refrained from condemning interpretations where evidence is still scanty, for thus to condemn appears to me as unscientific as to make positive statements where complete evidence is wanting. If the book falls into the hands of the overcredulous, perhaps a word of warning is necessary to curb hurried conclusions. One can only hope that none of the more speculative statements will be quoted except with qualifications which go therewith. Forewarning In the closing chapter I have endeavored to differ entiate clearly between the several effects well established and scientifically recognised from those which are more speculative and require much further investi gation before definite conclusions can be drawn. Only by such differentiation can the whole subject be clarified with the door still open for future progress. A scientific reader will misstechnical phraseology and numerous references quoting sources which obvi ously are out of place in so popular a presentation. If the reading of the book stimulates a consciousness of mans cosmic surroundings and opens certain ques tions for serious consideration, the answers to which are yet to come, the purpose of the book will in a meas ure be realized. HARLAN TRUE STETSON. CAMBRIDGE, MASSACHUSETTS, September, 1937...
Download or read book Sunspots and the Sun King written by Ellen McClure and published by University of Illinois Press. This book was released on 2023-09-07 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mediation, monarchy, and Louis XIV's attempts to legitimize his reign In order to assert his divine right, Louis XIV missed no opportunity to identify himself as God’s representative on earth. However, in Sunspots and the Sun King Ellen McClure explores the contradictions inherent in attempting to reconcile the logical and mystical aspects of divine right monarchy. McClure analyzes texts devoted to definitions of sovereignty, presents a meticulous reading of Louis XIV’s memoirs to the crown prince, and offers a novel analysis of diplomats and ambassadors as the mediators who preserved and transmitted the king’s authority. McClure asserts that these discussions, ranging from treatises to theater, expose incommensurable models of authority and representation permeating almost every aspect of seventeenth-century French culture.
Download or read book Earth and Sun written by Ellsworth Huntington and published by . This book was released on 1923 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observing the Sun written by Jamey L. Jenkins and published by Springer Science & Business Media. This book was released on 2013-07-19 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Observing the Sun” is for amateur astronomers at all three levels: beginning, intermediate, and advanced. The beginning observer is often trying to find a niche or define a specific interest in his hobby, and the content of this book will spark that interest in solar observing because of the focus on the dynamics of the Sun. Intermediate and advanced observers will find the book invaluable in identifying features (through photos, charts, diagrams) in a logical, orderly fashion and then guiding the observer to interpret the observations. Because the Sun is a dynamic celestial body in constant flux, astronomers rarely know for certain what awaits them at the eyepiece. All features of the Sun are transient and sometimes rather fleeting. Given the number of features and the complex life cycles of some, it can be a challenging hobby. “Observing the Sun” provides essential illustrations, charts, and diagrams that depict the forms and life cycles of the numerous features visible on the Sun.
Download or read book The Sun Kings written by Stuart Clark and published by Princeton University Press. This book was released on 2009-04-12 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recounts the story behind English astronomer Richard Carrington's observations of a mysterious explosion on the surface of the sun and how his understanding that the sun's magnetism directly influences the Earth helped usher in the modern era of astronomy.
Download or read book The Sun the Earth and Near earth Space written by John A. Eddy and published by Government Printing Office. This book was released on 2009 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... Concise explanations and descriptions - easily read and readily understood - of what we know of the chain of events and processes that connect the Sun to the Earth, with special emphasis on space weather and Sun-Climate."--Dear Reader.
Download or read book Sunspots written by Simon Barraclough and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sun is our local star; the most important object in our lives. But what really powers it? And who are the sun's favourite painters? Simon Barraclough is your guide in this tour-de-force book of poetry. Sunspots condenses fact, fiction, myth, humour and emotion into a luminous meditation on the star that gives us life.
Download or read book Cold Sun written by John Leonard Casey and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change has been a perplexing problem for years. In Cold Sun, author John L. Casey, a former White House national space policy advisor, NASA headquarters consultant, and space shuttle engineer tells the truth about ominous changes taking place in the climate and the Sun. Casey's research into the Sun's activity, which began four years ago, resulted in discovery of a solar cycle that is now reversing from its global warming phase to that of dangerous global cooling for the next thirty years or more. This new cold climate will dramatically impact the world's citizens. In Cold Sun, he provides evidence of the following: / The end of global warming / The beginning of a solar hibernation, a historic reduction in the energy output of the Sun / A long-term drop in the Earth's temperatures / The start of the next climate change to decades of dangerously cold weather / The high probability of record earthquakes and volcanic eruptions A sobering look at the Earth's future, Cold Sun predicts worldwide, crop-destroying cold; food shortages and riots in the United States and abroad; signifi cant global loss of life; and social, political, and economic upheaval.
Download or read book Planets Sunspots and Earthquakes written by Frank Glasby and published by iUniverse. This book was released on 2002 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planets, Sunspots and Earthquakes presents a working hypothesis of how planets trigger sunspots and earthquakes. Two distinct and separate effects are considered: one is an internal effect whereby the core of the sun and the earth become more active. The other is an external effect whereby the combined effect from external bodies stresses the earth's crust at a point where it enters or leaves the gravitational field of the group of external bodies.The causes of the initial internal processes that are necessary for the final seismic trigger effect to operate are examined and the connection with sunspot cycles is explored. The work is the result of observation and investigation during three eleven-year sunspot cycles, and offers material for further research by specialists and students.
Download or read book Magnetohydrodynamics of the Sun written by Eric Priest and published by Cambridge University Press. This book was released on 2014-04-07 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: This advanced textbook reviews the complex interaction between the Sun's plasma atmosphere and its magnetic field.
Download or read book The Sun Recorded Through History written by J.M. Vaquero and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sun is nowadays observed using di?erent techniques that provide an almost instantaneous 3-D map of its structure. Of particular interest is the studyofthevariabilityinthesolaroutputproducedbythedissipationofm- netic energy on di?erent spatial and temporal scales – the so-called magnetic activity. The 11-year cycle is the main feature describing this phenomenon. Apart from its intrinsic scienti?c interest, this topic is worth studying because of the interaction of such processes with the terrestrial environment. A ?eet of space and ground-based observatories are currently monitoring the behaviour of our star on a daily basis. However, solar activity varies not only on this decadal time-scale, as has been attested mainly through two methods: (a) records of the number of sunspots observed on the solar surface from 1610, and (b) the records of 14 10 cosmogenic isotopes, such as Cand Be, measured in tree-rings and i- cores, respectively. The study of the long-term behaviour of solar activity may be comp- mented by the study of historical accounts describing phenomena directly or indirectly related to solar activity. Numerous scienti?c and non-scienti?c d- uments have reported these events and we can make use of them as a proxy of solar activity in past times.
Download or read book Solar Science written by Dennis Schatz and published by . This book was released on 2015-12-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Solar Science offers more than three dozen hands-on, inquiry-based activities on many fascinating aspects of solar astronomy. The activities cover the Sun's motions, the space weather it causes, the measures of time and seasons in our daily lives, and much more."--
Download or read book The Neglected Sun written by Fritz Vahrenholt and published by Stacey International Publishers. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this momentous book, Professor Fritz Vahrenholt and Dr Sebastian Luning demonstrate that the critical cause of global temperature change has been, and continues to be, the sun's activity.
Download or read book The Sun A True Book written by Cody Crane and published by Scholastic Inc.. This book was released on 2021-03-23 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: It's bright and it's hot. It's the center of our solar system. It is our Sun. As readers journey through this book, they will discover how this amazing star came into existence, and they will learn everything about its size and makeup, its solar winds and flares, and how its light and heat affect Earth. The workings of the sun's magnetic field, sun spots, and the latest technology used to study the sun will also captivate our readers.Planets and stars, moons and galaxies! The universe is a vast and mysterious place with much to explore. And there's no better way to make amazing discoveries about space than with this reimagined series. With the latest NASA imagery, the classic structure and features of A True Book, and lively text, the titles in Our Universe bring the awe of the cosmos directly to readers. Students will come away with a wealth of knowledge about the incredible celestial bodies in our universe.This series covers Next Generation Science Standards core ideas including "The Universe and its stars" and "Earth and the solar system."
Download or read book Sunspot written by Rob Leininger and published by . This book was released on 2014-12-14 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sunspot was huge. Nothing like it had ever been seen before---a twenty-billion square mile blot on the surface of the sun, and growing. Dr. Morris Tyler at Northern Arizona University in Flagstaff has a theory that might explain what's happening, and the news isn't good. Which is why he's under surveillance after having been told to keep his theory to himself. Keeping his theory under wraps isn't easy, not when a gorgeous reporter for Parsec magazine, Gail Dionne, has him in her sights, out to get a story. Tyler's well-ordered world spins out of control when all these forces converge on him, and the world begins to grow colder as the sun . . . goes . . . out.
