41. Www.nrl.navy.mil/cgi-bin/clementine/clib/features/lunar_fea.pl?which=crater_a_c PDF MATHEMATICAL ORIGAMI ANOTHER VIEW OF alhazen’S OPTICAL PROBLEM http://www.nrl.navy.mil/cgi-bin/clementine/clib/features/lunar_fea.pl?which=crat

42. Imago Mundi - Alhazen Translate this page Chronologies. alhazen, Abu Ali Al-Hasan Ibn al-Haitham (987-1038ou 965-1039?) - Mathématicien, physicien et philosophe irakien. http://www.cosmovisions.com/Alhazen.htm

Dictionnaire biographique Les gens Alhazen , Abu Ali Al-Hasan Ibn al-Haitham A B C D ... Z

43. Alhazen Wynalazcy. alhazen. Ibn alHaitham. arabski matematyk, fizyk i astronom dzialajacyw Egipcie (ok. 965-1039). Pionier optyki, wg. tradycji wynalazca soczewki. http://www.wynalazki.mt.com.pl/twor/alhazen.html

Wynalazcy Alhazen Ibn al-Haitham. arabski matematyk, fizyk i astronom dzia³aj±cy w Egipcie (ok. 965-1039). Pionier optyki, wg. tradycji wynalazca soczewki By³ pierwszym, który opisywa³ " ciemniê optyczn± " - pierwowzór aparatu fotograficznego i proponowa³ jej u¿ycie do obserwacji zaæmieñ s³oñca. Interesowa³ siê zjawiskami optycznymi - za³amanie ¶wiat³a. Do strony g³ównej

44. Adventures In CyberSound: Alhazen alhazen (Abu Ali Hasan Ibn alHaitham) 965 - 1039. One of the most famousof these Arab scholars was alhazen (Abu Ali Hasan Ibn al-Haitham). http://www.acmi.net.au/AIC/ALHAZEN_BIO.html

A D V E N T U R E S in C Y B E R S O U N D Alhazen (Abu Ali Hasan Ibn al-Haitham) : 965 - 1039 Alhazen , Arabic (Abu Ali Hasan Ibn al-Haitham) (b. c.965, Basra, Iraq d. 1039, Cairo), mathematician and physicist who made the first significant contributions to optical theory since the time of Ptolemy (flourished 2nd century). In his treatise on optics, translated into Latin in 1270 as Opticae thesaurus Alhazeni libri vii , Alhazen published theories on refraction, reflection, binocular vision, focussing with lenses, the rainbow, parabolic and spherical mirrors, spherical aberration, atmospheric refraction, and the apparent increase in size of planetary bodies near the Earth's horizon. He was first to give an accurate account of vision, correctly stating that light comes from the object seen to the eye. Source: Britannica Online The ancient Greek studies of mathematics, philosophy, the arts and science would have been lost to us forever if the Arabs had not preserved and collected this legacy for all. In addition, through their annotations and studies they added to our knowledge. One of the most famous of these Arab scholars was Alhazen (Abu Ali Hasan Ibn al-Haitham). His studies included contributions to physics, especially optics and mathematics.

45. Learn More About Alhazen In The Online Encyclopedia. Visit the Online Encyclopedia and learn more and get your questions answeredabout alhazen. You are here Online Encyclopedia alhazen. alhazen. http://www.onlineencyclopedia.org/a/al/alhazen.html

You are here: Online Encyclopedia Enter a phrase or search word in the box below. You can enter multiple phrases at a time by putting a comma between each word.(e.g. cat ,dog ,lion ) Press the search button to start your search. Hint: Play with putting spaces before and after your words to see the different results you get. see previous page Alhazen Alhazen (Abu Ali al-Hasan Ibn Alhasan) ) was an Arabian mathematician He was born at Basra and died at Cairo . He is to be distinguished from another Alhazen who translated Ptolemy 's Almagest in the 10th century. Having boasted that he could construct a machine for regulating the inundations of the Nile , he was summoned to Egypt by the caliph Hakim; but, aware of the impracticability of his scheme, and fearing the caliph's anger, he feigned madness until Hakim's death in 1021. Alhazen was nevertheless a diligent and successful student, being the first great discoverer in optics after the time of Ptolemy . According to Giovanni Battista della Porta, he first explained the apparent increase of heavenly bodies near the horizon, although Bacon gives the credit of this discovery to Ptolemy. He taught, previous to the Polish physicist Witelo, that vision does not result from the emission of rays from the eye, and wrote also on the refraction of light, especially on atmospheric refraction, showing, e.g. the cause of morning and evening twilight. He solved the problem of finding the point in a convex mirror at which a ray coming from one given point shall be reflected to another given point.

46. Biography: Al Hassan Ibn Al Haitham (Alhazen) | Baheyeldin.com Biography Al Hassan Ibn Al Haitham (alhazen). Al Hassan Ibn Al Haitham, known inLatin as alhazen, is a famous Muslim scientist from the 10th and 11th century. http://baheyeldin.com/history/alhazen.html

@import url(misc/drupal.css); @import "themes/xtemplate/pushbutton/xtemplate.css"; Skip navigation Home Site Map Search ... Contact Us Contents Family Khalid Omar Suhaila Sarah ... Ancestry Writings Children Culture History Humor ... Science Technology Software Arabization Linux MidEast Internet ... Miscellany Places Canada Cyprus Denmark Egypt ... USA Interests Fishing Nature Photography Snorkelling User login Username: Password: Request new password Navigation contact us site map recent posts Home Biography: Al Hassan Ibn Al Haitham (Alhazen) Submitted by Khalid on Sun, 2004/03/07 - 16:44. History Al Hassan Ibn Al Haitham, known in Latin as Alhazen, is a famous Muslim scientist from the 10th and 11th century. He was famous in optics, but was also versed in Geography, Astronomy, Architecture. References Short biography from Malaspina Biography from Legacy of Islam From Eric Weisstein's World of Science University of St. Andrews, Scotland ... Baheyeldin.com Web site development by 2BITS.com Baheyeldin.com

47. AllRefer Encyclopedia - Alhazen (Mathematics, Biographies) - Encyclopedia AllRefer.com reference and encyclopedia resource provides complete informationon alhazen, Mathematics, Biographies. alhazen, Mathematics, Biographies. http://reference.allrefer.com/encyclopedia/X/X-Alhazen.html

AllRefer Channels :: Health Yellow Pages Reference Weather SEARCH : in Reference May 31, 2004 You are here : AllRefer.com Reference Encyclopedia Mathematics, Biographies ... Alhazen By Alphabet : Encyclopedia A-Z A Alhazen, Mathematics, Biographies Related Category: Mathematics, Biographies Alhazen see Ibn al-Haytham Topics that might be of interest to you: Ibn al-Haytham Encyclopedia U com Check out around 175,000 brief encyclopedia articles on almost all topics. Related Categories: People Science and Technology Science and Technology Mathematics ... Biographies More articles from AllRefer Reference on Alhazen Encyclopedia U com Check out around 175,000 brief encyclopedia articles on almost all topics. Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities. About Us Contact Us Privacy Links Directory ... AllRefer.com

48. Index - Alhazen Adatai - Fórum FÓRUM. alhazen adatai. Felhasználónév alhazen. Emailcím alhazen@freemail.hu.Homepage http//. Üzenetek száma 1746. Státusz Törzsvendég. http://forum.index.hu/forum.cgi?a=u&su=282917

49. Recherche : Alhazen Translate this page Accueil Publimath Requête alhazen, Certification IDDN. Dans les fiches.3 fiches trouvées. http://publimath.irem.univ-mrs.fr/cgi-bin/publimath.pl?r=Alhazen&t=n

50. Recherche : Alhazen Translate this page Accueil Publimath Requête voisine alhazen, Certification IDDN. Dans lesfiches. 3 fiches trouvées. http://publimath.irem.univ-mrs.fr/cgi-bin/publimath.pl?r=Alhazen&t=r

51. Showrecord Reflectie binnen een cirkelvormige spiegel (probleem van alhazen). En als je daaropniet kan wachten Google zelf ook eens met alhazen billiard problem . http://www.wisfaq.nl/showrecord3.asp?id=14816

52. Alhazen Translate this page alhazen alhazen (nasceu no ano 965 e morreu em 1039) Físico e matemático árabe.Foi um dos primeiros descobridores da Óptica, depois de Ptolomeu. http://www.guajara.com/wiki/pt/wikipedia/a/al/alhazen.html

Guajara in other languages: Spanish Deutsch English French ... Italian Alhazen Alhazen (nasceu no ano 965 e morreu em 1039) F­sico e matem¡tico ¡rabe. Foi um dos primeiros descobridores da “ptica, depois de Ptolomeu. Vangloriou-se por ter descoberto um aparelho para regular as cheias do Nilo, mas, quando convidado para exibir seu invento, sentiu-o impratic¡vel e, com receio de ser punido por Hakem's, fingiu-se louco at© a morte dele. Foi o primeiro a explicar o fen´meno dos corpos celestes no horizonte. Trabalhos seus foram encontrados nas Bibliotecas de Paris, Oxford e Leiden. Fonte: LISA - Grande Enciclop©dia da L­ngua Portuguesa (Hist³rico) Wikipedia GNU Free Documentation License Tagoror dot com Legal Information ... Contact us

53. IDENTIKIT Name Size Coordinates Image. alhazen crater, 35 km diameter 2000 mt heightwalls. 18°N 70°E Eastern side of Crisium sea. Return to identikit A . http://www.rccr.cremona.it/monografie/luna/idkt11.htm

IDENTIKIT Name: Size: Coordinates: Image ALHAZEN crater 35 km diameter 2000 mt height walls 18°N - 70°E Eastern side of Crisium sea >> Return to identikit "A" <<

54. PPE - General Encyclopedia A2 Also wrote biographies of selfmade statesmen like Abraham Lincoln, the BackwoodsBoy (1883). alhazen (c965-1038) Ibn al-Haitham. Perhaps a Persian. http://www.embassy.org.nz/encycl/a2encyc.htm

Aga Khan - America's Cup Jump elsewhere Jump Back to A Beard - Africa Jump Forward to American Civil War - Apprentice AGA KHAN Hereditary religious chief of Islamic sect (Ismailite sect of the Shia community). Sultan Sir Mohammed Shah (1877-1957) played important part in discussions of the future of India. Well known as race-horse owner. [RE] AGATHOCLES King of Syracuse. AGCA , Mehmet Attempted to assassinate pope. AGE CONCERN NZ national advocacy organisation dedicated to improving the lifestyle and well-being of older people. AGE OF REASON Also known as the Enlightenment AGE OF REASON, The Essay by Thomas Paine proving the existence of God by philosophical arguments, but brands the Bible and religious institutions as enslaving devices. Beyond goodwill, positive social action is a citizen's obligation. AGGRESSION Some behaviourists identify over a dozen types of aggression, which might co-exist at times. Predatory - invoked by prey Anti-predatory - presence of predator Territorial - intruder in animal's domain Dominance - challenge to animal's rank or desire for object Maternal - threat to mother's young Weaning - parent warns off or even attacks young to force independence Parental disciplinary - invoked by unacceptable behaviour of young (eg, unwelcome suckling, rough or overextended play, wandering)

55. Al-Haitham (Alhazen), 965-1040 C.E. ABU ALI HASAN IBN ALHAITHAM (alhazen) (965 - 1040 CE), by Dr. A. Zahoor. Al-Haitham,known in the West as alhazen, is considered as the father of modern Optics. http://www.unhas.ac.id/~rhiza/saintis/haitham.html

ABU ALI HASAN IBN AL-HAITHAM (ALHAZEN) (965 - 1040 C.E.) by Dr. A. Zahoor Al-Haitham, known in the West as Alhazen , is considered as the father of modern Optics . Abu Ali Hasan Ibn al-Haitham was one of the most eminent physicists, whose contributions to optics and the scientific methods are outstanding. Ibn al-Haitham was born in 965 C.E. in Basrah (present Iraq), and received his education in Basrah and Baghdad. He traveled to Egypt and Spain. He spent most of his life in Spain, where conducted research in optics, mathematics, physics, medicine and development of scientific methods. Al-Haitham conducted experiments on the propagation of light and colors, optic illusions and reflections. He examined the refraction of light rays through transparent medium (air, water) and discovered the laws of refraction. He also carried out the first experiments on the dispersion of light into its constituent colors. In detailing his experiment with spherical segments (glass vessels filled with water), he came very close to discovering the theory of magnifying lenses which was developed in Italy three centuries later. It took another three centuries before the law of sines was proposed by Snell and Descartes. His book Kitab-al-Manazir was translated into Latin in the Middle Ages, as also his book dealing with the colors of sunset. He dealt at length with the theory of various physical phenomena such as the rainbow, shadows, eclipses, and speculated on the physical nature of light. Roger Bacon (thirteenth century), Pole Witelo (Vitellio) and all Medieval Western writers on Optics base their optical work primarily on Al-Haitham's '

56. Recherche : Alhazen Translate this page Accueil Publimath Requête alhazen, Certification IDDN.Dans les fiches. 3 fiches trouvées http://publimath.univ-lyon1.fr/cgi-bin/publimath.pl?r=Alhazen&t=n

57. Al Haitam Al Haitam is best known as alhazen and is remembered for alhazen s problem Letme see Wilson s theorem. There is a Crater alhazen on the moon. http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/lHtm.htm

Abu Ali al'Hasan ibn al'Haitam Born: 965 in (possibly) Basra, Persia (now Iraq) Died: 1039 in Cairo, Egypt Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Welcome page Al'Haitam is best known as Alhazen and is remembered for Alhazen's problem: Given a light source and a spherical mirror, find the point on the mirror were the light will be reflected to the eye of an observer. The problem leads to a quadratic which was solved with Greek style geometry. Al'Haitam had a less than satisfactory solution, Huygens found a good solution which Vincenzo Riccati and Saladini simplified and improved. Al'Haitam wrote a treatise on optics Kitab al-manazir, translated into Latin as Opticae thesaurus Alhazeni (1270). He worked on reflection, refraction, lenses, parabolic and spherical mirrors, spherical aberration and atmospheric refraction. He wrote on these topics after experimenting with lenses and mirrors. His study of magnification with lenses led him to conclude that the magnifcation was caused by the curvature of the lens. He gave the first correct explanation of vision showing that light is reflected from an object into the eye. His study of refraction led him to propose that the atmosphere had a finite depth of about 15 km. He explained twilight by refraction of sunlight once the Sun was less than 19

58. The House Of Help Support Forums - View Profile: Alhazen View Profile alhazen. alhazen. New Arrival. Last Activity 0611-2003 0901 PM.Offline. Find all posts by alhazen. Find all threads started by alhazen. Referrals0. http://www.houseofhelp.com/forums/member.php?u=6170

59. Haupttext Translate this page Avicenna und alhazen. alhazen ist im Gegensatz zu Avicenna der Meinung, dass Farbenin der Dunkelheit bestehen, aber nicht auf das Auge wirken können. http://www.rudiviertel.de/avicenna.htm

Rudi Viertel Apostelstr. 31 91334 Hemhofen eMail-Kontakt Rudi.Viertel@ t-online.de Avicenna und Alhazen Avicenna (Ibn Sina, 980 Provinz Buchara, Persien; Avicenna hatte erkannt, dass jeder einzelne Farbton eine Vielzahl von Abstufungen umfaßt, die sich nur in der Helligkeit unterscheiden. Er kannte auch bereits eine Abfolge vom Weiß über alle Grauwerte zum Schwarz. In der aus dem 12. Jh. stammenden lateinischen Übersetzung seiner Werke werden drei Farbreihen herausgestellt: "Die erste ‘reine’ Skala der Unbuntarten, die über ‘subpallidum’ und ‘pallidum’, eine zweite die über Fahlrot (‘sunrubeus’) und Rot, und eine dritte, die über Grün und Indigo führte." Diese Farbreihen wurden von Vinzenz von Beauvais in seine Enzyklopädie aufgenommen (Speculum naturae II, Kap. lxviii) und von

60. Alhazen alhazen. alhazen (Abu Ali alHasan Ibn Alhasan), (965-1038) byl arabskýmatematik. On byl narozený u Basra a umrel u Káhira. http://wikipedia.infostar.cz/a/al/alhazen.html

švodn­ str¡nka Tato str¡nka v origin¡le Alhazen Alhazen (Abu Ali al-Hasan Ibn Alhasan) ) byl arabsk½ matematik On byl narozen u Basra a zemřel u K¡hira . On m¡ b½t rozliÅ¡il od jin©ho Alhazen kdo překl¡dal Ptolemy ' s Almagest v 10th stolet­. M­t chlubil se, že on mohl postavit stroj pro regulovat inundations Nil , on byl svol¡n k Egypt kalif Hakim; ale, vědom½ impracticability jeho sch©matu, a ob¡vat se kalifov© zlosti, on předst­ran© Å¡­lenstv­ until Hakim je smrt v 1021. Alhazen byl přesto piln½ a ºspěšn½ student, b½t prvn­ velk½ objevitel v optice po čase Ptolemy . Shodnout se k Giovanni Battista della Porta, on nejprve vysvětlil zřejm½ n¡rust nebesk½ch těles bl­zko obzoru, ačkoli Bacon poskytne ºvěr tohoto objevu k Ptolemy. On učil, předchoz­ k polsk©mu fyziku Witelo, ta vize nevypl½v¡ z emise paprsků od oka, a psal tak© na l¡m¡n­ světla, obzvl¡Å¡tě na atmosf©rick©m lomu, představen­, e. g. př­Äina r¡na a soumraku večera. On vyřeÅ¡il probl©m n¡lezu důvod k vydut©mu zrcadlu u kter©ho paprsek poch¡zet z jednoho dan©ho bodu muset b½t odr¡Å¾en k dalÅ¡­mu dan©mu bodu. Jeho pojedn¡n­ o optice bylo přeložen© do latiny Witelo (1270), a pot© publikoval F. Risner v 1572, s titulem

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