Page 241 - Allah's Gentle Artistry
P. 241

239










                 Before passing on to the subject of the eye, let us briefly ans-
               wer the question of how we see. Light rays coming from an ob-
               ject fall oppositely on the eye's retina. Here, these light rays are
               transmitted into electric signals by cells and reach a tiny spot at
               the back of the brain, the "center of vision." These electric signals
               are perceived in this center as an image after a series of proces-
               ses. With this technical background, let us do some thinking.
                 The brain is insulated from light. That means that its inside
               is completely dark, and that no light reaches the place where it
               is located. Thus, the "center of vision" is never touched by light
               and may even be the darkest place you have ever known.
               However, you observe a luminous, bright world in this pitch
               darkness.
                 The image formed in the eye is so sharp and distinct that
               even the technology of the twentieth century has not been ab-
               le to attain it. For instance, look at the book you are reading, yo-
               ur hands with which you are holding it, and then lift your head
               and look around you. Have you ever seen such a sharp and dis-
               tinct image as this one at any other place? Even the most deve-
               loped television screen produced by the greatest television pro-
               ducer in the world cannot provide such a sharp image for you.
               This is a three-dimensional, colored, and extremely sharp image.
               For more than 100 years, thousands of engineers have been
               trying to achieve this sharpness. Factories, huge premises were
               established, much research has been done, plans and designs ha-
               ve been made for this purpose. Again, look at a TV screen and
               the book you hold in your hands. You will see that there is a big
               difference in sharpness and distinction. Moreover, the TV screen
               shows you a two-dimensional image, whereas with your eyes,
               you watch a three-dimensional perspective with depth.
   236   237   238   239   240   241   242   243   244   245   246