The greatest Muslim scientists ((Ibn al-Haytham))

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Is Abu Ali al-Hasan ibn al-Haytham , and optical engineer who died in 430 AH , was born in Basra, 354 years its probably . He moved to Egypt, where he stayed until his death . According to the book ( News of the wise ) for Agafti on the lips of Ibn al-Haytham ( if you worked in Egypt for Bnalha pursuant gets the benefit in each of the cases is the case of spin ) . Bringing this to the owner as saying Egypt , the Fatimid al-Hakim , sent him some money privately , and asked him to come to Egypt . Patriarch agreed Ibn al-Haytham demand and traveled to Egypt, where he tabbed Hakim accomplish what he promised . Ibn al-Haytham Fbeshr study of the river along its course , and when he arrived near Aswan Nile waters descend from him examined in all its aspects , he realized that he was delusional hasty in what he claimed was estimated , and that he is unable to land on his promise . Then he returned to the Governor in God apologetically , before his excuse and otherwise one positions . However, Ibn al-Haytham thinks B ruling in God pretended satisfaction , Fajhi Liquide to him, and pretended to go mad , and persevered to pretend it until the death of the ruling Fatimid . After his death, he returned to pretend madness , and came out of his home , and dwelt on the door of the Dome of the Al-Azhar mosque , and rolled the rest of his life and its authors and researchers in the fields of science , was his tremendous achievements .

Dub ibn Abi Osabah in his book ( eyes news in layers doctors ) says: ( was Ibn al-Haitham Fadel self , strong intelligence , Mtfnna in science , not matched by one of the people of his time in the Mathematical Science , not nearly it. Was permanently engage , many classification, Altazhd galore ... ) .

Ibn al-Haytham large number of different compositions included the purposes of science. The most important of these works : Book landscapes , book the whole of the assets of the account , a book in the transaction account , a book explaining the origins of Euclid in geometry and number, a book in the analysis of engineering problems , the book shapes semicircular , an article in the analysis and synthesis , an article in the Brcar circles bones , an article in the properties of the triangle on the one hand column , an article in the light , an article in the mirrors of the Holocaust Balqtoa , an article in the mirrors of the Holocaust circles , an article in the ball of the Holocaust , an article on how the shadows , an article in the account of the Indian , the issue in the space , the issue of the ball , a book in the corona and the rainbow , a picture book Eclipse , the different views of the moon, the planets and see the view of the moon, using the designated account , heights planets , a book in the world. Some argue that Ibn al-Haytham leave the books in theology , philosophy , medicine and others.

The book was a corresponding revolution in the world of optics, Son Haytham did not adopt the theories of Ptolemy to explain them being some adjustment , but he refused a number of theories in the science of light , after reaching a new theories became the nucleus of modern optics . Below we try and stop at the most important considerations in the book :

1 . Ptolemy claimed that the vision is done by the rays emitted from the eye to the visual body , has adopted scientists Subsequent to this theory . And when he came Ibn al-Haytham blow up this theory in a book landscape , between the vision that is done by the radiation emitted from the body towards the visible eye sighted .

2 . After a series of tests conducted by Ibn al-Haytham between the optical beam spread in a straight line within the center smoothly.

3 . Ibn al-Haytham discovered the phenomenon of light reflection , and the phenomenon of turning light any deviation from the place the picture in the event of the passage of light rays in the center to the center of a certain non- homogeneous him. It also discovered that the reversal will be non-existent if passed light rays according to the angle from the center to the center of another non- homogeneous him.

4 . Put Ibn al-Haitham research in relation to the lens zooms , and thus paved the way for the use of various lenses in the treatment of eye defects .

5 . Of the most important achievements of Ibn al-Haytham that explain the eye autopsy complete , and the functionality of each section .

6 . Reached Ibn al-Haytham to the discovery of an optical illusion that his way sighted people , if they wanted to compare between the two bodies after about one Offline eyesight by an object invisible , it seemed to him that the two closest is longer , and the longer is the closest . For example, if he was standing in the plain of vast stretches up to the horizon , and if you see the city in this horizon ( Earth body Visible up tool sight of the city ) , and if he sees at the same time the moon with views over the nearby mountain of it ( what the body Visible up tool eyesight the moon ) , Vaalghemr in this case seems closer to him and two of the city