Gamini, Amir Mohammad (Author)
Fatemeh Keyghobadi (Author)
Al-Safīr fī al-Hayʾa is a short treatises in “Hayʾa” written in 1500 A.D. /906 AH, by Ghīyāth al-Dīn Manṣūr Dashtakī, a great scholar of Safavid period. It is important to study this treatise because in the first place, it is one of the latest “Hayʾa” books written after many other books in this subject. In the second place, it is written in the period usually considered as the period of decline of Islamic science. And finally, unlike other short “Hayʾa” books, it includes a discussion of the difficulties of Ptolemaic planetary models, with some hints to the author’s or the other scholars’ solutions. This paper studies Dashtaki’s scientific character and introduces Al-Safīr fī al-Hayʾa with a descriptive - analytical approach. A study of its contents shows that this treatise is a standard, brief, and instructional textbook based on Ptolemaic planetary models. The distinctive feature of this book is its presentation of the difficulties of Ptolemaic planetary models and the history of their solutions, apparently to persuade the scholars to study Dashtaki’s other advanced works on “Hayʾa” and getting to know his solutions
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