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 Date: 2010-02-17 11:45:51Optical devices Astronomy Mirrors Amateur astronomy Glass Reflecting telescope Newtonian telescope Amateur telescope making Primary mirror Telescopes Telescope types Optics |
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| First Page | Document Content | |
|---|---|---|
Date: 2010-02-17 11:45:51Optical devices Astronomy Mirrors Amateur astronomy Glass Reflecting telescope Newtonian telescope Amateur telescope making Primary mirror Telescopes Telescope types Optics |
|
telescope techniques Mirror