Excerpt from The Telescope
This book is written for the many observers, who use telescopes for study or pleasure and desire more information about their construction and properties. Not being a handbook in two or more thick quartos, it attempts neither exhaustive technicalities nor popular descriptions of great observatories and their work. It deals primarily with principles and their application to such instruments as are likely to come into the possession, or within reach, of students and others for whom the Heavens have a compelling call.
Much has been written of telescopes, first and last, but it is for the most part scattered through papers in three or four languages, and quite inaccessible to the ordinary reader. For his benefit the references are, so far as is practicable, to English sources, and dimensions are given, regretfully, in English units. Certain branches of the subject are not here discussed for lack of space or because there is recent literature at hand to which reference can be made. Such topics are telescopes notable chiefly for their dimensions, and photographic apparatus on which special treatises are available.
Celestial photography is a branch of astronomy which stands on its own feet, and although many telescopes are successfully used for photography through the help of color screens, the photographic telescope proper and its use belongs to a field somewhat apart, requiring a technique quite its own.
It is many years, however, since any book has dealt with the telescope itself, apart from the often repeated accounts of the marvels it discloses. The present volume contains neither pictures of nebulae nor speculations as to the habitibility of the planets; it merely attempts to bring the facts regarding the astronomer's chief instrument of research somewhere within grasp and up to the present time.
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Louis Bell is a freelance writer based in Dublin.
"About this title" may belong to another edition of this title.
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Paperback. Condition: New. Print on Demand. This book is a journey through the fascinating history of the telescope, tracing its evolution from its humble beginnings as a simple magnifying tool to the powerful instruments that revolutionized our understanding of the universe. The author delves into the lives of the key figures who shaped this remarkable invention - from the Dutch spectacle maker Jan Lippershey to the brilliant minds of Galileo, Kepler, Huygens, and Sir William Herschel. Readers will discover the ingenious methods these early pioneers employed to craft their instruments, the persistent challenges they faced, and the enduring impact their discoveries had on the field of astronomy. The book explores the evolution of telescope design, the development of improved lenses and mirrors, and the fascinating interplay between scientific progress and the relentless drive to see farther into the cosmos. By revisiting this epic saga of invention and discovery, this book offers a unique and captivating glimpse into the origins of our modern understanding of the universe. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781330279120_0
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330279120
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Paperback. Condition: Brand New. 302 pages. 9.00x6.00x0.69 inches. This item is printed on demand. Seller Inventory # zk1330279123
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