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Q.

Why al-Haytham (Alhazen), who is regarded as the "father of optics" ?

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Asked by onlytruth, 26 Feb '12 11:32 am
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1.

Abu Ali al-Hasan ibn al-Hasan ibn al-Haytham (965 in Basra c. 1040 in Cairo) was a prominent scientist and polymath from the Golden Age of Muslim civilization. He is commonly referred to as Ibn al-Haytham, and sometimes as al-Basri, after his birthplace in the city of Basra. He is also known by his Latinized name of Alhzen or Alhacen.

Ibn al-Haytham made significant contributions to the principles of optics, as well as to physics, astronomy, mathematics, ophthalmology, philosophy, visual perception, and to the scientific method. He was also nicknamed Ptolemaeus Secundus ("Ptolemy the Second") or simply "The Physicist" in medieval Europe. Ibn al-Haytham wrote insightful commentaries on works by Aristotle, Ptolemy, and the Greek mathematician Euclid.

Born circa 965, in Basra, Iraq, he lived mainly in Cairo, Egypt, dying there at age 76. Over-confident about practical application of his mathematical knowledge, he assumed that he could regulate the floods of the Nile.

After being ...more
Answered by jameel ahmed, 26 Feb '12 06:23 pm

 
  
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2.

Al-Hasan Ibn al-Haitham
He was followed by Al-Hasan Ibn al-Haitham, known to the West as Alhacen, whose scientific works made a breakthrough in optics and physiology of vision. His works were considered the basis on which Western scientists built all their theories in this principle. His works had a great influence on Western scientists- who raided them and attributed them to themselves- such as Roger Bacon and Witelo and others, especially in their researches related to the microscope, the telescope and the magnifying glass[4].

Ibn al-Haitham started first by discussing the theories of Euclid and Ptolemy in the field of vision and showed corruption of some of their aspects. During that time he presented a fine description of the eye, the eye lenses and eye vision. He described states of light ray refraction as it penetrates the air around the globe in general. Then he specifically described the state of light ray refraction when it penetrates a transparent body like air, water or ...more
Answered by truth exposed, 26 Feb '12 11:34 am

 
  
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Euclid and Ptolemy believed that the eyes emitted rays which enabled us to see. The first person to realise that rays of light enters the eye, rather than leaving it, was the 10th century Muslim mathematician, astronomer and physicist Ibn al-Haytham (Alhazen), who is regarded as the "father of optics".He is also credited with being the first man to shift physics from a philosophical activity to an experimental one, with his development of the scientific method. The word "camera" comes from the Arabic word qamara for a dark or private room.
Answered by harish chandra, 26 Feb '12 11:39 am

 
  
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Al-Hasan Ibn al-Haitham
He was followed by Al-Hasan Ibn al-Haitham, known to the West as Alhacen, whose scientific works made a breakthrough in optics and physiology of vision. His works were considered the basis on which Western scientists built all their theories in this principle. His works had a great influence on Western scientists- who raided them and attributed them to themselves- such as Roger Bacon and Witelo and others, especially in their researches related to the microscope, the telescope and the magnifying glass
Answered by z, 26 Feb '12 12:18 pm

 
  
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5.

Abu ali al-hasan
Answered by vijay, 11 Mar '12 04:19 pm

 
  
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