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Ibn al-Haytham

965 - 1039

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Ḥasan Ibn al-Haytham, Latinized as Alhazen (; full name Abū ʿAlī al-Ḥasan ibn al-Ḥasan ibn al-Haytham أبو علي، الحسن بن الحسن بن الهيثم; c. 965 – c. 1040), was a medieval mathematician, astronomer, and physicist of the Islamic Golden Age from present-day Iraq. Referred to as "the father of modern optics", he made significant contributions to the principles of optics and visual perception in particular. His most influential work is titled Kitāb al-Manāẓir (Arabic: كتاب المناظر, "Book of Optics"), written during 1011–1021, which survived in a Latin edition.Ibn al-Haytham was an early proponent of the concept that a hypothesis must be supported by experiments based on confirmable procedures or mathematical evidence—an early pioneer in the scientific method five centuries before Renaissance scientists. Read more on Wikipedia

Since 2007, the English Wikipedia page of Ibn al-Haytham has received more than 1,786,349 page views. His biography is available in 82 different languages on Wikipedia. Ibn al-Haytham is the 30th most popular physicist (down from 24th in 2019), the 11th most popular biography from Iraq (down from 8th in 2019) and the most popular Iraqi Physicist.

Ibn al-Haytham is most famous for his contributions to the field of optics. He is credited with discovering the principle of the pinhole camera, which is still used in photography today. He also contributed to the fields of geometry and trigonometry.

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  • 82

    Languages Editions (L)

  • 6.86

    Effective Languages (L*)

  • 5.07

    Coefficient of Variation (CV)

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Among physicists, Ibn al-Haytham ranks 30 out of 717Before him are Heinrich Hertz, Charles-Augustin de Coulomb, Luigi Galvani, Daniel Bernoulli, Richard Feynman, and Hendrik Lorentz. After him are Henry Cavendish, Gustav Kirchhoff, Louis de Broglie, Daniel Gabriel Fahrenheit, William Gilbert, and Paul Dirac.

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Among people born in 965, Ibn al-Haytham ranks 1After him are Hisham II, Henry I, Margrave of Austria, Theodoric I, Duke of Upper Lorraine, Sancho García of Castile, Frederick of Luxembourg, and Godfrey II, Duke of Lower Lorraine. Among people deceased in 1039, Ibn al-Haytham ranks 1After him are Conrad II, Holy Roman Emperor, Cunigunde of Luxembourg, Dirk III, Count of Holland, Adalbero, Duke of Carinthia, Conrad II, Duke of Carinthia, and Unsuri.

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In Iraq

Among people born in Iraq, Ibn al-Haytham ranks 11 out of 338Before him are Nebuchadnezzar II (-630), Abu Hanifa (698), Ashurbanipal (-685), Sargon of Akkad (-2300), Sarah (-1803), and Al-Kindi (801). After him are Mani (216), Ahmad ibn Hanbal (780), Alexander IV of Macedon (-323), Rabia of Basra (710), Zaha Hadid (1950), and Sennacherib (-740).

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Among physicists born in Iraq, Ibn al-Haytham ranks 1After him are Jim Al-Khalili (1962).