The 2nd International Prof. Dr. Fuat Sezgin Symposium on History of Science in Islam Proceedings Book
DOI :10.26650/PB/AA08.2023.002.009 IUP :10.26650/PB/AA08.2023.002.009 Full Text (PDF)
A Little Known Paper by Professor Fuat Sezgin on the Meridian Instrument of Ibn al-HaythamJan P. Hogendijk
When Fuat Sezgin came to Istanbul in 1943, he became a student of mathematics and engineering, only changing to Oriental Studies after meeting Hellmut Ritter. We will analyze a paper which Fuat Sezgin published in 1986 and which is a witness of his mathematical abilities. The paper includes an edition of a mathematically difficult text by Ibn al-Haytham which Sezgin reconstructed from a unique Arabic manuscript written with very few diacritical marks. In this treatise, Ibn al-Haytham discusses the theoretical and practical aspects of an instrument which he produced for determining the meridian with utmost accuracy.
Keywords: Fuat Sezgin, Ibn al-Haytham, meridian, astronomy, astronomical instrument