Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 28. Chapters: Iraqi mathematicians, Alhazen, Al-Kindi, Taqi al-Din Muhammad ibn Ma'ruf, Brethren of Purity, Al-Khazini, Ab K mil Shuj ibn Aslam, Hunayn ibn Ishaq, Th bit ibn Qurra, Mu ammad ibn J bir al- arr n al-Batt n, Ban M s, Ab al-Waf ' B zj n, Ibn Yahy al-Maghrib al-Samaw'al, 'Abd al-Ham d ibn Turk, Mu ammad ibn Ibr h m al-Faz r, Ibn Sahl, Ahmad ibn Yusuf, Abu Nasr Mansur, Ab Ja'far al-Kh zin, Ab Sahl al-Q h, Abdul Jerri, Al-Saghani, Al-Abb s ibn Said al-Jawhar, Abu'l-Hasan al-Uqlidisi, Ibrahim ibn Sinan, Ibn Tahir al-Baghdadi, Na'im ibn Musa, Al- ajj j ibn Y suf ibn Ma ar, Sinan ibn Thabit, Yusuf al-Mu'taman ibn Hud. Excerpt: (Arabic:, Persian:, Latinized: Alhacen or (deprecated) Alhazen) (965 in Basra - c. 1040 in Cairo) was a Persian scientist and polymath. Some sources state that he was an Arab. He is frequently referred to as Ibn al-Haytham, and sometimes as al-Basri (Arabic: ), after his birthplace in the city of Basra. Alhazen made significant contributions to the principles of optics, as well as to physics, astronomy, mathematics, ophthalmology, philosophy, visual perception, and to the scientific method. He was also nicknamed Ptolemaeus Secundus ("Ptolemy the Second") or simply "The Physicist" in medieval Europe. Alhazen wrote insightful commentaries on works by Aristotle, Ptolemy, and the Greek mathematician Euclid. Born circa 965, in Basra, Iraq, he lived mainly in Cairo, Egypt, dying there at age 76. Over-confident about practical application of his mathematical knowledge, he assumed that he could regulate the floods of the Nile. After being ordered by Al-Hakim bi-Amr Allah, the sixth ruler of the Fatimid caliphate, to carry out this operation, he quickly perceived the impossibility of what he was attempting to do, and retired from engineering. Fe...