The Proper Motions of 1418 Stars in and Near the Clusters [italic H] and [Greek Letter Chi] Persei PDF Download

Author: Adriaan Van Maanen
Publisher:
ISBN:
Category : Stars
Languages : en
Pages : 120

View

Book Description

Author: Carl W. Correns
Publisher: Springer Science & Business Media
ISBN: 3642871348
Category : Science
Languages : en
Pages : 490

View

Book Description
The first edition of this book has been out of print for seven years. The ques tion as to whether a new edition should be produced was answered affirmatively on many counts. I think that the considerations which led me to write this book in 1949 are still valid (see Preface to the First Edition). Moreover, a description of those areas of interest which together comprise the field of Mineralogy seems to be more necessary than ever, because of the rapid advances which have been made. Due to the rapid extension of our knowledge, I did not dare again to treat the whole field by myself. Accordingly, Professor ZEMANN kindly agreed to revise the first part of the book dealing with Crystallography. He made many important corrections. In Part II the basic question arose as to whether the physical-chemical approach to rock forming processes, becoming more and more important, required inclusive treatment of the fundamentals of physical chemistry in the book. I see certain dangers in trying to produce a petrology text which is physical chemically self-sufficient. Thus, I retain the same opinion which prevailed when I wrote the previous edition; namely that the necessary basic knowledge should be acquired in lectures and laboratory classes in physics, chemistry, and physical chemistry, and with the help of standard literature dealing with these subjects. This back ground is, therefore, presumed and fundamentals are only referred to occasionally.

Author: Virendra Nath Sharma
Publisher: Motilal Banarsidass Publ.
ISBN: 9788120812567
Category : Science
Languages : en
Pages : 378

View

Book Description
Sawai Jai Singh the statesman astronomer of 18th century India designed astronomical instruments of masonry and stone, built observatories prepared a Zij or a text for astronomical calculations and sent a fact-finding scientific mission to Europe. His high precision instruments were designed to measure time and angles to the very limit of naked eye observing.

Author: C. A. Cotton
Publisher:
ISBN: 9780028432106
Category : Volcanoes
Languages : en
Pages : 0

View

Book Description

Author: Clive L.N. Ruggles
Publisher: Springer
ISBN: 9781461461401
Category : Science
Languages : en
Pages : 0

View

Book Description
How human communities interpret what they perceive in the sky is vital in fulfilling humankind’s most basic need to comprehend the universe it inhabits, both from a modern scientific perspective and from countless other cultural standpoints, extending right back to early prehistory. Archaeoastronomy, which is concerned with cultural perceptions and understandings of astronomical phenomena, is a rich cross-disciplinary field. The central aim of “Handbook of Archaeoastronomy” is to provide a reliable source for theory, method, interpretation and best practices that will give a definitive picture of the state of the art research in this field for serious scholars regardless of the discipline(s) in which they are qualified. It will be equally suitable for those already contributing to the field and those interested in entering it. Also included are studies in ethnoastronomy, which is concerned with contemporary practices related to astronomy, particularly among modern indigenous societies. A major part of this MRW is comprised of a set of wide-ranging archaeoastronomical case studies both geographically and through time, stretching right back to Palaeolithic days, and also in terms of the types of human society and nature of their astronomical ideas and practices. However, these are chosen in order to best illuminate broader issues and themes, rather than to attempt, for example, to provide systematic coverage of recent ‘discoveries.’ Thematic articles cover general themes such as cosmologies, calendars, navigation, orientations and alignments, and ancient perceptions of space and time. They also highlight various aspects of the social context of astronomy (its relationship to social power, warfare, etc) and how we interpret astronomical practices within the framework of conceptual approaches. There are also discussions of broad issues such as ethnocentrism, nationalism, and astronomical dating. The “methods and practices” articles cover topics from field methodology and survey procedures to social theory, as well as providing broad definitions and explanations of key concepts. We are also including a number of “disciplinary perspectives” on approaches to archaeoastronomy written by leading figures in the constituent fields. These articles cover material that, generally speaking, would be familiar to graduates in the relevant discipline but, critically, not so to those with different backgrounds.

Author: Tsuko Nakamura
Publisher: Springer
ISBN: 9783319872292
Category : Science
Languages : en
Pages : 0

View

Book Description
This book examines the ways in which attitudes toward astronomy in Australia, China, India, Indonesia, Japan, South Korea, New Zealand, Taiwan, Thailand and Uzbekistan have changed with the times. The emergence of astrophysics was a worldwide phenomenon during the late nineteenth and early twentieth centuries, and it gradually replaced the older-style positional astronomy, which focused on locating and measuring the movements of the planets, stars, etc.. Here you will find national overviews that are at times followed by case studies of individual notable achievements. Although the emphasis is on the developments that occurred around 1900, later pioneering efforts in Australian, Chinese, Indian and Japanese radio astronomy are also included. As the first book ever published on the early development of astrophysics in Asia, the authors fill a chronological and technological void. Though others have already written about earlier astronomical developments in Asia, and about the recent history of astronomy in various Asian nations, no one has examined the emergence of astrophysics, the so-called ‘new astronomy’ in Asia during the late nineteenth and early twentieth centuries.

Author: Edward John Routh
Publisher: Sagwan Press
ISBN: 9781376479768
Category : Biography & Autobiography
Languages : en
Pages : 512

View

Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author: Mauri Valtonen
Publisher: Springer
ISBN: 3319227262
Category : Science
Languages : en
Pages : 183

View

Book Description
This book, written for a general readership, reviews and explains the three-body problem in historical context reaching to latest developments in computational physics and gravitation theory. The three-body problem is one of the oldest problems in science and it is most relevant even in today’s physics and astronomy. The long history of the problem from Pythagoras to Hawking parallels the evolution of ideas about our physical universe, with a particular emphasis on understanding gravity and how it operates between astronomical bodies. The oldest astronomical three-body problem is the question how and when the moon and the sun line up with the earth to produce eclipses. Once the universal gravitation was discovered by Newton, it became immediately a problem to understand why these three-bodies form a stable system, in spite of the pull exerted from one to the other. In fact, it was a big question whether this system is stable at all in the long run. Leading mathematicians attacked this problem over more than two centuries without arriving at a definite answer. The introduction of computers in the last half-a-century has revolutionized the study; now many answers have been found while new questions about the three-body problem have sprung up. One of the most recent developments has been in the treatment of the problem in Einstein’s General Relativity, the new theory of gravitation which is an improvement on Newton’s theory. Now it is possible to solve the problem for three black holes and to test one of the most fundamental theorems of black hole physics, the no-hair theorem, due to Hawking and his co-workers.

Author: Dr. S.Balachandra Rao & Dr Padmaja Venugopal
Publisher:
ISBN: 9788189220259
Category : Eclipses
Languages : en
Pages : 160

View

Book Description

Author: Carmen Pérez González
Publisher: Nuncius
ISBN: 9789004298866
Category : History
Languages : en
Pages : 310

View

Book Description
A history of images of the moon and of selenography, or lunar geography.--