Alhazen (or Abu Ali Al-Hassan Ibn Al Haytham )
(c. 965–1038) Arabian scientist
Born in Basra (now in Iraq), Alhazen was one of the most original scientists of his time. About a hundred works are attributed to him; the main one was translated into Latin in the 12th century and finally published in 1572 as Opticae thesaurus(The Treasury of Optics). This was widely studied and extremely influential. It was the first authoritative work to reject the curious Greek view that the eye sends out rays to the object looked at. Alhazen also made detailed measurements of angles of incidence and refraction. He studied spherical and parabolic mirrors, the camera obscura, and the role of the lens in vision. While the Greeks had had a good understanding of the formation of an image in a plane mirror, Alhazen tackled the much more difficult problem of the formation of images in spherical and parabolic mirrors and offered geometrical solutions. It is difficult to think of any other writer who had surpassed the Greeks in any branch of the exact sciences by the 14th let alone the 11th century. He was, however, unfortunate in his relationship with the deranged caliph al-Hakim. Having rashly claimed that he could regulate the flooding of the Nile, he was forced to simulate madness to escape execution until the caliph died in 1021.

Scientists. . 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Alhazen — Saltar a navegación, búsqueda Alhacén Abū ‘Alī al Haṣan ibn al Ha …   Wikipedia Español

  • Alhazen — Abu Ali al Hasan Ibn Al Haitham (también: Ibn al Haythen) (965 1040). Matemático árabe iraquí; a veces también llamado al Basri, por su lugar de nacimiento. Alhazen nació en Basra, parte de la Persia Buwayhid, parte de la actual Iraq, y murió… …   Enciclopedia Universal

  • Alhazen — Alhazen, s. Astronomie …   Meyers Großes Konversations-Lexikon

  • Alhazen — Alhazen,   lateinische Namensform für den arabischen Naturforscher Ibn al Haitham (Haitham) …   Universal-Lexikon

  • Alhazen — For the Moon crater, see Alhazen (crater). For the asteroid, see 59239 Alhazen. Alhazen Alhazen (Ibn al Haytham) …   Wikipedia

  • Alhazen —  Pour l’article homonyme, voir Alhazen (cratère).  Alhazen Abū ʿAlī al Ḥasan ibn al Ḥasan ibn al Haytham (Perse:ابن هیثم ,arabe : ابو علي، الحسن بن الحسن بن ا …   Wikipédia en Français

  • Alhazen — Kupferstich auf dem Titelblatt des Thesaurus opticus. Die Darstellung zeigt, wie Archimedes von Syrakus römische Schiffe mit Hilfe von Parabolspiegeln in Brand gesetzt haben soll. Abu Ali al Hasan ibn al Haitham (arabisch ‏أبو علي الحسن بن… …   Deutsch Wikipedia

  • Alhazen (Cratère) —  Pour l’article homonyme, voir Alhazen.  Alhazen Localisation Astre Lune Coordonnées 15°  …   Wikipédia en Français

  • Alhazen (cratere) — Alhazen (cratère)  Pour l’article homonyme, voir Alhazen.  Alhazen Localisation Astre Lune Coordonnées 15°  …   Wikipédia en Français

  • ALHAZEN Arabs — scripsit de Optica, Crepusculis, etc. circa saeculum 11. Blancanus sec. 11. Voss. de Scient. Mathem. c. 26. §. 7. c. 35. §. 15 …   Hofmann J. Lexicon universale

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”