thomas cook sons (8 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Condición: Fair. No Edition Remarks. 67 pages. Paperback book with pictorial cover. Black and white photographs throughout. French and English text. Binding remains firm. Pages and photographs are lightly tanned throughout. Paper cover has mild edgewear with curling to corners and reading creases. Tear to spin edge.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: Very Good. assumed first edition. For the 1927 season. 80pp. Tan wrappers with black lettering and green string tied binding. Light wear to edges. No internal marking. Nicely preserved. 80pp 4x6 inches -Quality Counts! All books shipped in Cardboard and all books with dust jackets have mylar jacket protectors.,

Paperback. Condición: New. Print on Demand. This book offers a thorough guide to optimizing the performance and quality of astronomical telescopes, providing valuable insights for both amateur and experienced astronomers seeking to enhance their observations. By exploring the complexities of telescope optics and mechanics, the author delves into essential topics such as squaring on, achromatism, false centering, and astigmatism, which are critical factors in achieving the sharpest and most accurate images. Beyond technical considerations, the book also emphasizes the significance of understanding the relationship between the telescope's form and optical effects, enabling readers to make informed decisions about their equipment. The authorâs comprehensive approach and detailed explanations empower readers to troubleshoot common issues, adjust their telescopes with precision, and fully appreciate the limitations and capabilities of their instruments. Through practical guidance and theoretical foundations, this book serves as a valuable resource for astronomers of all levels, offering a deeper understanding of telescope optics and the means to unlock the full potential of their observations, ultimately enriching their exploration of the wonders of the night sky. 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.

Narrow 8vo.; illustrated wraps with stapled binding, softcover; 16 pages; black and white photographic illustrations; top corner bent else very good.