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 ?
4) "Ibn al-Haytham", "The Columbia Encyclopedia", 6th ed, 2012, at http://www.encyclopedia.com/doc/1E1-IbnalHay.html.
Ibn al-Haytham (965- ca.1039) pioneered in optics, the use of the scientific method, and developed a theory of light.and sight (Steffens 2006).
"My colleague has now done just that," says Ibn al-Haytham. "Between the covers of Ibn Sina's canon is a bazaar of medical insights.
Also, an ambulance arrived at the scene of a collision between two vehicles in the Tela' al Ali neighbourhood and evacuated 5 injured people to the Ibn al-Haytham hospital, where they were listed in fair condition, the statement added Four people were also wounded following a two-vehicle crash, but they were in moderate condition at the Al Bashir government Hospital, where they were evacuated.
The UNESCO-led initiative celebrated the work of the 10th century Arabic scientist Ibn Al-Haytham. The 2015 World Arabic Language Day is dedicated to science and scientific communication as an opportunity to highlight the historical role of the Arabic language in research and the dissemination of knowledge, and the importance of multilingualism for the research community today.
The activities and attractions include an interactive book expo, an exhibition of inventions and the camera obscura of Ibn al-Haytham. The festivities will continue until July 22.
These include "Garden of Traffic Safety" to teach children about the importance of safe driving and traffic systems, the Ibn Al-Haytham exhibition, which is an interactive gallery portraying the inventions of Ibn Al-Haytham and presenting 100 inventions that changed our lives, and the Oasis Energy exhibition that speaks about the importance of preserving energy.
Alhacen on refraction; a critical edition, with English translation and commentary, of book 7 of Alhacen's De Aspectibus, the medieval Latin version of Ibn Al-Haytham's Kitab al-Manazir; v.1.
(11.) This record of Ibn Ridwan's colophon to his copy of Ibn al-Haytham's work is to be contrasted with the note by Ibn Butlan, recorded also by al-Qifti (pp.
Of particular interest to the history of Islamic scientific tradition is Article VIII, "Ibn al-Haytham's Homocentric Epicycles in Latin Astronomical Texts of the XIVth and Vth Centuries".