Design and Construction of three kinds of astronomical quadrant in one instrument by Iraj Safaei, head of University of Kashan Observatory

Design and Construction of three kinds of astronomical quadrant in one instrument by Iraj Safaei, head of University of Kashan Observatory

20 November 2010 | 00:00 Code : 7924 Old astronomical instruments

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He has designed three kinds of quadrant in one instrument. Horary quadrant, sine quadrant & astrolabe quadrant. And he has made it from brass.