Islamic Knowledge
Code: 397   |  View : 1286   |  Comments : 0 RSS comment feed   |   Print   |   Email  

Ibn Al-Haitham the Muslim Physicist

01 August, 2007 13:49
Ibn Al-Haitham the Muslim Physicist

Abu Ali Al-Hasan Ibn Al-Hasan (or al-Husain) Ibn Al-Haitham. Born c. 965 in Basra (Iraq), he flourished in Egypt under Al-Hakim (996 to 1020) and died in Cairo in 1039 or soon after.

He was arguably the greatest Muslim physicist and one of the greatest students of optics of all time. He was also an astronomer, a mathematician, a physician, and he wrote commentaries on Aristotle and Galen. He wrote about 70 manuscripts and he had propounded the famous Snell's law about 600 years before Snell.

The Latin translation of his main work, the Optics (kitab al-manazir), exerted a great influence upon Western science (R. Bacon; Kepler). It showed a great progress in the experimental method. Research in catoptrics: spherical and parabolic mirrors, spherical aberration; in dioptrics: the ratio between the angle and incidence and refraction does not remain constant; magnifying power of a lens. study of atmospheric refraction. The twilight on ly ceases or begins when the sun is 19o below the horizon; attempt to measure the height of the atmosphere on that basis. Better description of the eye, and better understanding of vision, though ibn al-haitham considered the lens as the sensitive part; the rays originate in the object seen, not in the eye. Attempt to explain binocular vision. Correct explanation of the apparent increase in the size the sun and the moon when near the horizon. earliest use of the camera obscura.


The catoptrics contain the following problem, known as Alhazen's problem: from two points of the plane of a circle to draw lines meeting at point of the circumference and making equal angles with the normal at that point. It leads to an equation of the fourth degree. Alhazen solved it by the aid of an hyberpola intersecting a circle. He also solved the so-called al-Mahani's (cubic) equation (q. v., second half of the ninth century) in a similar (Archimedian) manner.

by: Natasha Sopieva

 

Category : Muslim Thinkers & Scholars  |   Rate : Article Rating|  
Ibn Al-Haitham the Muslim Physicist
Post Rating
Comments
There are currently no comments, be the first to post one.
Post Comment

Name (required)

Email (required)

Website

CAPTCHA image
Enter the code shown above:

Knowledge Search
Knowledge Categories
Our Products
Islamic World News
Police investigate hate mail sent to UK and US mosques Police investigate hate mail sent to UK and US mos...

Counter-terror inquiry into letters and suspicious packages sent from location near Sheffield over past 12 months.

Read more
BRAIS – De Gruyter Prize 2018 BRAIS – De Gruyter Prize 2018

The Third Round of the BRAIS – De Gruyter Prize in the Study of Islam and the Muslim World is now open for submissions.

Read more
In many ways, Muslim men and women see life in America differently In many ways, Muslim men and women see life in Ame...

While many Muslims express wariness and anxiety about aspects of their lives in the United States, Muslim women tend to be more pessimistic about their place in U.S. society than Muslim men. Acco...

Read more
Canada: Quebec's Muslim to have their own cemetery Canada: Quebec's Muslim to have their own cemetery

Quebec’s mayor announced that the city’s Muslim community will have their own cemetery, despite objections from right-wing groups and rising anti-Muslim sentiment. The city had promis...

Read more
The Muslim Americans leading the push to 'stand up and be leaders' in politics The Muslim Americans leading the push to 'stand up...

Religious discrimination and an increase in hate crimes has spurred more Muslims to run for office and adopt an active role in community organizing.  More Muslims must seek public office as&...

Read more
Pause
© Copyright 2003 Islamic Research and Information Center( I R I C ) All Rights Reserved
Please send your comments and suggestions to info@iric.org
Graphic Design : nahaki.ir | Potral : Arianaltd.com