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Author: Arnab Rai Choudhuri
Publisher: Oxford University Press, USA
ISBN: 0199674752
Category : Nature
Languages : en
Pages : 295
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Book Description
The 11-year cycle of sunspots is one of the most intriguing natural cycles known to mankind. This book explores the fascinating science behind these phenomena and gives an insider's view of the history of the field.
Author: Galileo Galilei
Publisher: University of Chicago Press
ISBN: 0226707164
Category : History
Languages : en
Pages : 431
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Book Description
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.
Author: Ellen McClure
Publisher: University of Illinois Press
ISBN: 0252056930
Category : History
Languages : en
Pages : 223
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Book Description
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.
Author: J.H. Thomas
Publisher: Springer Science & Business Media
ISBN: 9401127697
Category : Science
Languages : en
Pages : 422
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Book Description
This volume contains the invited papers presented at the NATO Advanced Research Workshop on the Theory of Sunspots, held in Cambridge, England, 22-27 September 1991. The idea of holding this Workshop first arose during the Solar Optical Telescope work shop on Theoretical Problems in High-Resolution Solar Physics in Munich in 1985. At that meeting, separate discussion groups were formed to consider specific topics in solar physics. The discussion group on sunspots recommended that there be a meeting devoted to theoretical problems associated with sunspots, the motivation being the consensus that theory seemed to lag behind the observational evidence in our quest for a satisfactory un derstanding of the physics of sunspots. This recommendation was warmly received and the two of us were designated to organize the Workshop. Although the Workshop eventually took place later than originally envisioned, the de lay turned out to be fortunate and the timing of the Workshop was ideal for a number of reasons. There have been remarkable improvements in high-resolution observations of sunspots in the past few years, and many important new observational results were pre sented for the first time at this Workshop (by groups working at the Lockheed Palo Alto Research Laboratories, the Swedish and German telescopes in the Canary Islands, and the V. S. National Solar Observatory). Vector magnetographs and Stokes polarimetry have at last given us reliable measurements of the vector magnetic fields in sunspots.
Author: Patrick S. McIntosh
Publisher:
ISBN:
Category : Sunspots
Languages : en
Pages : 24
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Book Description
Bureau d'Analyse et de Recherche Appliquees (France). ANALOG STUDY OF SOME PROBLEMS RELATIVE TO LIFTING SURFACES IN AN HELICOIDAL MOVEMENT. Final rept. 1962. 28p. incl. illus. (Contract N62558-2997) Unclassified report DESCRIPTORS: *Marine propellers, *Analog sys tems, *Fluid mechanics, Surfaces, Simulation, Water. The first report defined the general principles of utilization and construction of a analog tank for studying the perturbation potential around lifting surfaces submitted to an helicoidal movement. The prese t report, which utilizes the sa e quotations, gives the results obtained with this tank in the resolution of various elementary problems. These determinations were used for the final setup of the analog model which can be considered as correspondingACCURATELY TO ITS ANTICIPATE FUNCTIO . (Author).
Author: J.M. Vaquero
Publisher: Springer Science & Business Media
ISBN: 0387927905
Category : Science
Languages : en
Pages : 395
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Sunspots
Languages : en
Pages : 364
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Book Description
Author: R. K. Jaggi
Publisher:
ISBN:
Category : Sunspots
Languages : en
Pages : 34
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Book Description
Author: P Murdin
Publisher: CRC Press
ISBN: 1000523039
Category : Science
Languages : en
Pages : 5610
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Book Description
In a unique collaboration, Nature Publishing Group and Institute of Physics Publishing have published the most extensive and comprehensive reference work in astronomy and astrophysics. This unique resource covers the entire field of astronomy and astrophysics and this online version includes the full text of over 2,750 articles, plus sophisticated search and retrieval functionality and links to the primary literature. The Encyclopaedia's authority is assured by editorial and advisory boards drawn from the world's foremost astronomers and astrophysicists. This first class resource is an essential source of information for undergraduates, graduate students, researchers and seasoned professionals, as well as for committed amateurs, librarians and lay people wishing to consult the definitive astronomy and astrophysics reference work.
Author: Dennis Schatz
Publisher:
ISBN: 9781941316078
Category : Astronomy
Languages : en
Pages :
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Book Description
"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."--
Author: Roger Freedman
Publisher: Macmillan
ISBN: 1429240164
Category : Science
Languages : en
Pages : 859
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Book Description
Universe. When it comes to staying current with latest discoveries, clearing away common misconceptions, and harnessing the power of media in the service of students and instructors, no other full-length introduction to astronomy can match it. Now the textbook that has evolved discovery by discovery with the science of astronomy and education technology for over two decades returns in spectacular new edition, thoroughly updated and offering unprecedented media options. Available in Split Volumes Universe: Stars and Galaxies, Fourth Edition, 1-4292-4015-6 Universe: The Solar System, Fourth Edition, 1-4292-4016-4
