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9 Money-saving Opportunities
ISBN13: 9781074081676
This over 400 page document is lavishly illustrated in full color to take advantage of the increased learning potential in the use of color
ISBN13: 9780156007535
Another considera
Making Your Own Telescope Michael Hacker 9 Money-saving OpportunitiesComplete, detailed instructions and numerous diagrams for constructing a do it yourself telescope. No complicated mathematics are involved, and no prior knowledge of optics or astronomy is needed to follow the text's step by step directions. Contents cover, among other topics, materials and equipment; tube parts and alignment; eyepieces, and related problems; setting circles; and optical principles. 6 plates. 100 figures. Author: Allyn J. Thompson,
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