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Dobsonian telescope - Wikipedia
Hubble Optics - large aperture lightweight optics and telescopes
John Dobson, an Inventive Itinerant Guide to Stargazing, Dies at 98 - The New York Times
Dobsonian telescope - Wikipedia
ESA - The unfolding space telescope
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John Lowry Dobson (1915 – 2014) standing in front of one of the giant telescopes that bear his name. (They come in sizes from a few inches up to 70 inches!) He