Biografia de alhazen biography e

Ibn al-Haytham was the first to correctly explain the theory of vision, [ 14 ] and to argue that vision occurs in the brain, pointing to observations that it is subjective and affected by personal experience.

Ibn al-haytham religion

Born in Basra , he spent most of his productive period in the Fatimid capital of Cairo and earned his living authoring various treatises and tutoring members of the nobilities. Ibn al-Haytham Alhazen was born c. His initial influences were in the study of religion and service to the community. At the time, society had a number of conflicting views of religion that he ultimately sought to step aside from religion.

This led to him delving into the study of mathematics and science. Upon his return to Cairo, he was given an administrative post. After he proved unable to fulfill this task as well, he contracted the ire of the caliph Al-Hakim , [ 42 ] and is said to have been forced into hiding until the caliph's death in , after which his confiscated possessions were returned to him.

Alhazen continued to live in Cairo, in the neighborhood of the famous University of al-Azhar , and lived from the proceeds of his literary production [ 45 ] until his death in c. Alhazen's most famous work is his seven-volume treatise on optics Kitab al-Manazir Book of Optics , written from to Optics was translated into Latin by an unknown scholar at the end of the 12th century or the beginning of the 13th century.

This work enjoyed a great reputation during the Middle Ages.