Amateur Telescope Making in the Internet Age: Finding Parts, Getting Help, and MorePaperback Patrick Moore's Practical Astronomy (Paperback)
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- Publisher: Springer-Verlag New York Inc.
- Format: Paperback | 208 pages
- Dimensions: 155mm x 231mm x 15mm | 249g
- Publication date: 30 October 2010
- Publication City/Country: New York, NY
- ISBN 10: 1441964142
- ISBN 13: 9781441964144
- Edition statement: Edition.
- Illustrations note: 1, black & white illustrations
- Sales rank: 875,284
Building an astronomical telescope offers the amateur astronomer an exciting challenge, with the possibility of ending up with a far bigger and better telescope than could have been afforded otherwise. In the past, the starting point has always been the grinding and polishing of at least the primary mirror, a difficult and immensely time-consuming process. But now that the Internet has brought us together in a global village, purchasing off-the-shelf goods such as parabolic mirrors, eyepieces, lenses, and telescope tubes, is possible. There are also a vast number of used mirrors and lenses out there, and it is now possible to track them down almost anywhere in the world. Online stores and auction houses have facilitated commerce regarding all sorts of useful optical components at a reasonable price. This is a book about making telescopes from available parts. It provides guidance on where to look and what to look for in selecting items useful for telescope making and explains how to assemble these components to produce an excellent instrument on a tight budget. At one time, many amateurs made their own telescopes from home-made parts. In today's rushed world, that has almost become a lost art. The Internet offers a wonderful alternative to either buying a pricey scope fully assembled or making your own from scratch.
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Although Clark was born in New Hampshire, he spent his early teen years in the New York City area. There he became acquainted with the Theodore Roosevelt Museum of Natural History and at the associated Hayden Planetarium, operated, at that time, by Newton and Margaret Mayhall. Their book Skyshooting provided his first introduction to the idea that someone with only moderate skills can build good scientific instruments. The three volumes of Amateur Telescope Making, edited by Albert G. Ingalls, completed the process of addiction. Clark received a B.S. degree in Mathematics from Stanford University. He then served in the U.S. Air Force at Strategic Air Command headquarters in Nebraska. After his discharge he did graduate work in Mathematics and Computer Science at the University of Maryland. After a few years spent in the Military Operations Research industry, he migrated to a university teaching position that lasted 33 years at the University of the District of Columbia. Throughout all this time he continued to be enamored by the process of building telescopes and actually built a few as time permitted. Since retirement he has allowed the addiction to occupy a large part of his enthusiasm, as is made evident by Figure 2.3. Clark now resides in Westminster, Maryland, where he has built a hilltop observatory and is active with the Westminster Astronomical Society.
From the reviews: "The book is packed with help and advice; given pre-made optics, there's advice on building a simple rich-field refractor through larger refractors and reflectors of various types, along with making all the essential parts and accessories, from tubes to mirror cells, focusers to spiders ... . In summary, the book contains an eclectic mix of projects, from which the amateur telescope maker is likely to glean some perfectly good ideas." (Peter Grego, Popular Astronomy, July-August, 2011) "The book contains everything you need to consider when building a telescope from your own 'scrap'; how to assess optics, design considerations and many wrinkles that assist the amateur telescope maker to meet and even exceed the engineering tolerances of commercial telescope manufacturers. This is a hugely useful book for anyone with a modicum of engineering skill ... . If you have an old photocopier lens in the loft, or any unused lens looking for a noble purpose, this book is for you." (Steve Ringwood, Astronomy Now, September, 2011)
Back cover copy
The Internet Age is changing everything about human invention and the use of technology. The change has been compared to that of the introduction of printing. Making your own telescope isn t what it used to be, either, thanks partly to the Internet. The old days of grinding and polishing are gone unless you want to do it! You can now assemble a great instrument from a wide range of affordable Internet-available components, new or used. The Internet is the new parts junkyard, with stuff from all over the world for you to pick through, day or night. In this book you will find out what s generally available and how to access it. You will learn how to evaluate optical components and combine them from diverse Internet sources. You will get many ideas on how to make the parts that you don t buy or scrounge and how to restore old lenses and mirrors. And you will learn some elementary physics of designing ergonomic comfortable telescopes. Navigating your way around the possibilities is easy using this valuable and timely resource. With Robert Clark s help you can get the best that the Internet has to offer. Get started now!"
Table of contents
Acknowledgements.- Chapter 1: Introduction.- Chapter 2: To Buy or Build a Telescope.- Chapter 3: Telescope Types and Designs.- Chapter 4: Build a Good Copyscope.- Chapter 5: The 80mm Refractor.- Chapter 6: Newtonian Telescopes.- Chapter 7: The F17 4-Inch Refractor.- Chapter 8: Focusers, Eyepieces, Barlows, and Finders.- Chapter 9: Tubes.- Chapter 10: Building a 12.5-inch Newtonian with Rotating Cage.- Chapter 11: Ergonomic Mounts.- Chapter 12: Evaluation, Quality Testing, and Optical Aberrations.- Chapter 13: Junk Collecting and Working with Modern Materials.- Appendix I: Web Suppliers of Telescope Building Parts and Materials.- Appendix II: Telescope-Building Books and Websites.- Appendix III: Polishing Log.- Appenidx IV: Units and Conversions.- Index.