微尘
发表于 2025-3-26 21:26:13
http://reply.papertrans.cn/16/1543/154291/154291_31.png
无王时期,
发表于 2025-3-27 03:45:37
http://reply.papertrans.cn/16/1543/154291/154291_32.png
BRIDE
发表于 2025-3-27 07:47:26
A Ball-Scope: The Best Portable Telescope!s the best-known example of this type of mounting is the Edmunds Astroscan. Steven Lee has successfully extended this principle to a 12.5 in (315 mm) telescope, showing, on the way, how a typical ATM overcomes the problems that beset him.
Spinous-Process
发表于 2025-3-27 12:41:08
http://reply.papertrans.cn/16/1543/154291/154291_34.png
Bureaucracy
发表于 2025-3-27 16:22:42
http://reply.papertrans.cn/16/1543/154291/154291_35.png
Maximize
发表于 2025-3-27 21:34:04
https://doi.org/10.1007/978-3-642-94502-1This telescope is typical of many shoestring projects in that the inspiration comes from the serendipitous discovery of an important component; in this instance it is the objective lens. This initial discovery inspires creativity in the adaptation of everyday materials, and so the telescope develops.
Cardioplegia
发表于 2025-3-27 22:41:25
An 80 mm RFT RefractorThis telescope is typical of many shoestring projects in that the inspiration comes from the serendipitous discovery of an important component; in this instance it is the objective lens. This initial discovery inspires creativity in the adaptation of everyday materials, and so the telescope develops.
规章
发表于 2025-3-28 02:55:00
1431-9756 The telescopes and mounts range from "shoestring" (very cheap) instruments to specialist devices that are unavailable commercially.978-1-85233-000-2978-1-4471-0567-1Series ISSN 1431-9756 Series E-ISSN 2197-6562
清唱剧
发表于 2025-3-28 08:41:38
http://reply.papertrans.cn/16/1543/154291/154291_39.png
幸福愉悦感
发表于 2025-3-28 10:57:35
“Skinflint”: A 15.5-inch f/4.8 Reflectorscopes or optics. Gil Stacy has found creative uses for commonly available materials and artefacts, much of which many people would class as scrap, to build his “Operation Skinflint”, a 15.5 in f/4.8 Dobsonian reflector for a cost of less than $400.