Harbor 发表于 2025-3-26 21:49:29

978-1-4614-4423-7Springer Science+Business Media New York 2013

ferment 发表于 2025-3-27 02:16:24

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引导 发表于 2025-3-27 06:56:07

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Arb853 发表于 2025-3-27 09:53:17

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AMBI 发表于 2025-3-27 16:01:50

Medieval Concepts and Practices,ess of Thomas Cooke in England and Alvan Clark in the United States owed much of their success to technology that was first formulated by German opticians, particularly the pioneering work of Joseph Von Fraunhofer. Were it not for his untimely death in 1826, Fraunhofer might well have gone on to bec

amygdala 发表于 2025-3-27 20:19:21

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表否定 发表于 2025-3-27 22:55:12

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亚当心理阴影 发表于 2025-3-28 03:12:37

https://doi.org/10.1007/978-3-030-68817-2did much to empower the amateur masses with large, high quality, yet affordable reflectors for the first time in history. And while classic telescopes usually conjure up visions of a spy glass astride an elegant mount, it remains the case that reflectors are highly popular with collectors and restor

雕镂 发表于 2025-3-28 10:05:48

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Diluge 发表于 2025-3-28 12:15:32

Ning Ding,Yankai Lin,Zhiyuan Liu,Maosong Sunwn and flint has distinguished itself as a telescope that can work well in all types of weather. There was once a time where nearly every major observatory across Europe, Asia and the Americas had, at its heart, a large, equatorially mounted refractor engaged in cutting edge astronomical research on
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查看完整版本: Titlebook: Classic Telescopes; A Guide to Collectin Neil English Book 2013 Springer Science+Business Media New York 2013 Achromatic refractors.Amateur