Ibn al-Haytham


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Related to Ibn al-Haytham: ibn Zuhr, Ibn Sina

Ibn al-Haytham

(ĭb`ən äl-hīth-äm`) or

Alhazen

(ălhəzĕn`), 965–c.1040, Arab mathematician. Ibn al-Haytham was born in Basra, but made his career in Cairo, where he supported himself copying scientific manuscripts. Among his original works, only those on optics, astronomy, and mathematics survive. His Optics, which relied on experiment rather than on past authority, introduced the idea that light rays emanate in straight lines in all directions from every point on a luminous surface. Latin editions of the Optics, available from the 13th cent. on, influenced Kepler and Descartes. As a cosmologist, al-Haytham tried to find mechanisms by which the heavenly bodies might be shown to follow the paths determined by Ptolemaic mathematics. In mathematics, al-Haytham elucidated and extended Euclid's Elements and suggested a proof of the parallel postulate.
References in periodicals archive ?
My colleague has now done just that," says Ibn al-Haytham.
When were the first efforts made to diffuse those narrow shafts or beams of light about which Ibn al-Haytham theorized 1000 years ago?
Ibn Al-Haytham laid the foundations of Optics including the explanation of the scientific phenomenon 'Camera Obscura' -- which is still the basic principle used in modern cameras.
the tradition preserved in al-Tabari and al-Azdi), and another, substantially changed by Bakr ibn al-Haytham (i.
Exactly 1,000 years after Ibn al-Haytham, the man described as the world's first true scientist, began his magnum opus Kitab-al-Manazir, Qatar Foundation for Education, Science and Community Development (QF) is this week celebrating human achievement and the unlocking of human potential.
One could think of the diverse variants from the theory of parallels, particularly from the time of Thabit ibn Qurra, to the sort of analysis situs conceived by Ibn al-Haytham, for the doctrines of the invisibles in the seventeenth century.
Tiba International Company, Ibn Al-Haytham Medical Foundation, Qatar Pharmacy, Doha Drug Store and Massar Medical, are the firms that have received approval to import drugs.
Ibn Ridwan's copy of Ibn al-Haytham's work, lacking as it does any record of teaching and licensing, is no more than the work of a scribe (we should note also that Ibn al-Haytham was an older contemporary of Ibn Ridwan and like him in Cairo; the biographers would find it odd that there is no such license in such fortuitous circumstances).
This tradition in astronomy, from Ibn al-Haytham to the so-called "Maragha School" and beyond, has been well studied.
Saud, Muhammad, The Scientific Method of Ibn al-Haytham (Islamabad: Islamic Research Institute, 1990); Omar, Saleh B.
At any rate, one cannot and should not avoid studying how great figures of Islamic science such as Ibn al-Haytham, al-Biruni, Ibn Sina and Fakhr al-Din al-Razi reflected on the philosophical and empirical sciences in which they excelled.
runs through all the seven books that make up the Optics of Ibn al-Haytham: Having totally rejected, on the basis of empirical evidence, the visual-ray hypothesis as the foundation of previous mathematical theories of vision, and aligning himself (again on the basis of experience) with the peripatetic view of vision as the reception of forms of light and color, Ibn al-Haytham was led to accord psychology a new, inevitable and fundamental role never realized earlier in the works of the Greek mathematicians and their Arabic successors.