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Alhazen:     more books (61)

al-Ittijah al-ilmi wa-al-falsafi inda Ibn al-Haytham (Arabic Edition) by Dawlat Abd al-Rahim Ibrahim, 1995 Witelona Perspektywy--ksiega IV: Przeklad na jezyk polski ze wstepem i komentarzami (Studia Copernicana) (Polish Edition) by Witelo, 1994 The scientific method of Ibn al-Haytham (Publication) by Muhammad Saud, 1990 Al-Biruni and ibn al-Haytham: A comparative study of scientific method (Millenary of Abū Raihān Muḥammad ibn Aḥmad al-Birūni) by Anton M Heinen, 1973

lists with details

81. Untitled
    Translate this page IBN AL HAYTHAM dit alhazen Le Marchand. Ibn al Haytham, aussi connusous le nom d'alhazen, est né il ya vingt trois ans à Zamara.  
    http://www.holobar.net/Campagne/Joueurs/Alhazen/Alhazen2.htm
    
    Extractions: IBN AL HAYTHAM dit Alhazen Le Marchand Biographie ecrite par Abbas avec l'aimable collaboration de son sujet. Ainsi, cet homme solitaire, parti de "rien", vit sa notoriété grandir et parallement à celà, se decouvrit une foule d'amis qu'il ne se connaissait pas. Il acceda aussi à un siege au conseil de la ville qu'il avait commencait par refuser mais qu'il finit par accepter. Il fait donc partie, depuis peu de temps, du conseil de Zamara, au sein duquel, il a d'ailleurs tendance a donner son avis sur plus de sujet que ne se le permettent ses collegues et concurrents habituellement. Il a ainsi quelque peu modifié l'ordre normal des choses. Meme si ce changement n'est pas enorme. D'ailleurs, ce bouleversement n'a été possible que grace à la grande ouverture d'esprit du Bey de Zamara : Bey Al Azif N'Dayan. Extrait de "Ibn al Haytham, la vie et l'oeuvre d'un marchand d'esclaves"

82. KEPLER, Johann, Ad Vitellionem Paralipomena, Quibus Astronomiae Pars Optica Trad
    Working within the perspectivist tradition of alhazen, Roger Bacon, Witelo, JohnPecham, and others, Kepler accepts that sight is possible due to rays emitted  
    http://www.polybiblio.com/watbooks/1278.html
    
    Extractions: W. P. Watson Antiquarian Books KEPLER, Johann 4to (204 x 159 mm), pp [xvi] 449 [18] with one engraved plate with leaf of explanation, two folding tables, and numerous woodcut diagrams in text; early ink inscription on title, section of blank outer margin of title torn and expertly restored, some browning and foxing as usual, contemporary green vellum, spine gilt, with letters 'S.L.' in gilt at foot of spine. £14,500

83. Introduction To Sydney Chapman
    about then) and thence drifted to the Moslem influence on Europe, to the Moslems,to Arabic science in general, and the Arabian scientist alhazenin the way  
    http://www.gi.alaska.edu/chapman/intro.html

84. New Angle On Vision
    The eleventhcentury Arabic scholar alhazen, whom some credit with having inventedthe scientific method, also hypothesized that humans use angles with the  
    http://www.nature.com/nsu/011108/011108-11.html
    
    Extractions: 8 November 2001 ERICA KLARREICH We judge distance from the ground up. Even if trigonometry wasn't your strong suit in school, your brain uses it constantly. You judge distance by measuring the angle between the ground and your line of sight to an object, a new study shows. The finding could improve the design of robots and artificial vision systems Volunteers who looked through prisms that increased this angle thought objects were closer than they really were, missing them when throwing beanbags or trying to walk to them blindfolded. Some prism-wearing participants even leaned forward, imagining that the ground was tilted away from them. "They tried to adjust their body perpendicular to the perceived ground surface," says Teng Leng Ooi of the Southern College of Optometry in Memphis, Tennessee, a member of the research team. After just 20 minutes, volunteers adjusted to the distortion and judged distances correctly. This suggests that the brain possesses a 'plastic' mechanism to tune its vision system to a constantly changing environment, the researchers say. When volunteers took the prisms off, they temporarily went to the opposite extreme, overestimating distances. The experiments take a more "ecological" approach to vision processing than a lot of previous research, says Hal Sedgwick, who studies visual perception at the SUNY College of Optometry in New York City. "Rather than thinking of perception as occurring through an empty, abstract space, this looks at it from the point of view of an organism living in an environment, locating objects relative to the ground."

85. 2r5
    1. Describe alhazen's intromission theory of vision. 2. Using the following diagramdescribe the superfluity of rays problem? How did alhazen solve it?  
    http://www.erin.utoronto.ca/~w3psy100/winter/tests/tests02w/test2/r5lectans.htm
    
    Extractions: Alhazen assumed that rays of light were emitted by each point on the surface of an object in all directions. Those rays of light that entered the pupil of the eye and fell on the lens produced a visual sensation. 2. Using the following diagram describe the superfluity of rays problem? How did Alhazen solve it? (3 points) The superfluity of rays problem is that too many rays of light from a single point on an object would fall on the lens of the eye. As the figure above shows, the rays from the two points overlap producing overlapping blurred images. Alhazen solved the problem by assuming that only unrefracted rays (those perpendicular to the surface of the eye) reached the lens. 3. Explain why you see a triangle in A but not in B. (2 points) The contours in A form straight lines which appear to continue through the break (Gestalt principle of good continuation). These straight lines, in turn, form a simple and symmetrical figure (Gestalt principles of symmetry and good figure). The result is that you perceive an illusory triangle. 4. During deep sleep brain waves have a high

86. :: MAXIM ONLINE :: Scientific-Method Man
    But all of this technological booty would never have existed withoutthe wisdom of alhazen. Born in Basra (modernday Iraq) around  
    http://www.maximonline.com/maximwear/articles/article_1909.html

87. A History Of Science By Henry Smith Williams-Book 2 Chapter 3
    ignorant of Greek. In the field of physical science one of the most importantof the Arabian scientists was alhazen. His work, published  
    http://www.nalanda.nitc.ac.in/resources/english/etext-project/history/science/bo
    
    Extractions: CHAPTER II. MEDIAEVAL SCIENCE AMONG THE ARABIANS The successors of Mohammed showed themselves curiously receptive of the ideas of the western people whom they conquered. They came in contact with the Greeks in western Asia and in Egypt, and, as has been said, became their virtual successors in carrying forward the torch of learning. It must not be inferred, however, that the Arabian scholars, as a class, were comparable to their predecessors in creative genius. On the contrary, they retained much of the conservative oriental spirit. They were under the spell of tradition, and, in the main, what they accepted from the Greeks they regarded as almost final in its teaching. There were, however, a few notable exceptions among their men of science, and to these must be ascribed several discoveries of some importance. Perhaps the greatest of the Arabian astronomers was Mohammed ben Jabir Albategnius, or El-batani, who was born at Batan, in Mesopotamia, about the year 850 A.D., and died in 929. Albategnius was a student of the Ptolemaic astronomy, but he was also a practical observer. He made the important discovery of the motion of the solar apogee. That is to say, he found that the position of the sun among the stars, at the time of its greatest distance from the earth, was not what it had been in the time of Ptolemy. The Greek astronomer placed the sun in longitude 65 degrees, but Albategnius found it in longitude 82 degrees, a distance too great to be accounted for by inaccuracy of measurement. The modern inference from this observation is that the solar system is moving through space; but of course this inference could not well be drawn while the earth was regarded as the fixed centre of the universe.

88. The 4 Th International Laboratory For The History Of Science
    Related to problems of Optics and Catoptrics, as best exemplified by Leonardo'sextensive studies of the problem of alhazen beginning about 1503, is the  
    http://galileo.imss.firenze.it/news/intlabor/pedretti2.html
    
    Extractions: THURSDAY, MAY 31 2001 The second day of this session concentrates on a number of special problems pertaining to Leonardo's achievements in the theory and practice of vision. Multa renascentur quae jam cecidere. Horace's famous dictum seals up Calvi's classic study of 1925 on the chronology of Leonardo's manuscripts. It is so true, indeed, that late in life Leonardo takes up, time and again, what had interested him long before then, even in his earliest days. "Keep in mind how the ball of Santa Maria del Fiore was soldered together in sections". This in a notebook of 1515 with reference to a 1469 event to which Leonardo himself participated as an apprentice in Verrocchio's workshop. This has a bearing on perspective as well, and implies experimentation through models. The soldering process he refers to was made by means of burning mirrors. Related to problems of Optics and Catoptrics, as best exemplified by Leonardo's extensive studies of the "problem of Alhazen" beginning about 1503, is the perspective problem of anamorphosis, that Leonardo codifies for the first time with a note in the Arundel manuscript about 1506-1508. This codification refers to lateral distortion, a problem in the theory and practice of painting that must have intrigued Leonardo since the start of his career. Since a picture may be intended for a location where it would be seen at an angle upon being first approached from a side, it could be profitably planned accordingly so as to introduce the kind of distortion that allows the displaced eye to restore the correct vision. An unquestionable error of perspective in the Uffizi

89. Name Of The Rose, Second Day: Night
    16068). Click here for the study page index. Click here to return to the ENG 510syllabus. Address questions or comments to Professor Anderson. alhazen  
    http://www.csuohio.edu/english/earl/nr169.html
    
    Extractions: "I heard something like the hiss of a thousand serpents" (p. 175): [Mike Almony comments] This passage reflects the content in Dyan Elliot's article "Pollution, Illusion, and Masculine Disarray: Nocturnal Emissions and the Sexuality of the Clergy". Constructing Medieval Sexuality (ed. Karma Lochrie, Peggy McCracken, and James A. Schultz) Minneapolis: University of Minnesota Press, 1997 which states: "Thus a demon would first pose as a succubus, garnering the unsuspecting human male's seed, next would transport it at dizzying speed (so none of the heat of its generative virtue would be lost), and then would shapeshift into a male-seeming incubus. In this form it would impregnate a woman."

90. Www.ralph-abraham.org/articles/MS%23102.Boltsprog/perspect.txt
    Katz, 1993) 3. Medieval perspectiva The sequence of development here may be regardingas beginning with Ibn alHaytham (965-1039, also known as alhazen in the  
    http://www.ralph-abraham.org/articles/MS#102.Boltsprog/perspect.txt

91. La Trayectoria Académica De Luis Rivera Terrazas, Boletín Abril-Junio, SMF
    http://www.smf.mx/boletin/Abr-99/articulo/arti-opt.html
    
    Extractions: D urante los últimos 30 años el desarrollo de la óptica en México ha sido considerable (Cornejo, 1990), permitiendo que se consoliden diversos grupos de investigadores en esta disciplina. Seguramente ello no ha sido casual, sino el resultado de un largo y complejo proceso, cuyas raíces, igual a lo que ocurre con otras disciplinas científicas cultivadas en este país, pueden rastrearse hasta la época colonial, cuando se implantó la cultura occidental en América (Moreno Corral, 1993). Este trabajo presenta información novedosa sobre el desarrollo que la óptica tuvo en México durante el periodo colonial y el primer siglo de vida independiente. Se analizan los textos de esta disciplina que fueron conocidos en este país a partir del siglo XVI, indicando cuándo fueron usados los primeros instrumentos ópticos y qué mexicanos lo hicieron.

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