Subject
Reflecting telescopes Books
Best books
Henry Draper
On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography
"On the Construction of a Silvered Glass Telescope" by Henry Draper is a scientific publication written in the mid-19th century. This work provides an in-depth examination of the design and functionality of a silvered glass telescope specifically suited for celestial photography. It presents both the practical aspects of telescope construction and the underlying scientific principles. At the start of the work, Draper outlines the historical context of telescope development and shares his personal journey of creating a larger, improved instrument in America. He details the materials and processes involved in grinding and polishing mirrors, silvering glass, and constructing the telescope's mounting and components. The opening portion sets the stage for an elaborate discussion on the various challenges encountered in this endeavor and how each was systematically addressed through experimentation and innovation.
George Calver
New Edition of Hints on Silver-Glass Reflecting Telescopes Manufactured by Mr. G. Calver, F.R.A.S. with Directions for Silvering, Adjusting, &c.
"New Edition of Hints on Silvered-Glass Reflecting Telescopes Manufactured by Mr. G. Calver, F.R.A.S." is a scientific publication likely written in the late 19th century. The book focuses on providing guidance for the use and construction of silvered-glass reflecting telescopes, emphasizing their advantages over other types. It serves as a resource for both amateur astronomers and practical observers keen on understanding telescope selection, silvering techniques, and operational adjustments. The opening of this work introduces the nature of silvered-glass reflectors and their growing popularity among astronomers. It highlights the benefits of such telescopes, including reduced chromatic aberration and ease of use compared to achromatic telescopes. The text details considerations for suitable atmospheric conditions and offers practical advice on telescope adjustments, mirror polishing, and the intricacies of telescope construction. With references to practical observations and a variety of technical instructions, the opening assumes a guide-like tone, aiming to convey the joy and satisfaction derived from using well-crafted optical instruments.
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