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Astronomy / Reflecting telescope / Amateur telescope making / Telescope / Newtonian telescope / Sir Howard Grubb / Parsons and Co / Secondary mirror / Dominion Astrophysical Observatory / Optical telescope / Observational astronomy / Telescopes / Telescope types


English telescope makers & designers of the twentieth century. By Peter Abrahams.
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Document Date: 2006-08-22 12:03:37

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File Size: 40,00 KB

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