how do we actually see?
2006-09-07 23:55:42 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
like, I know its all about the brain but how can you really see everything going on and process it and everything. I'm doing an assignment and really need help! Please send in your answers if you know them. And please don't spam or send in any useless information... okay?
How does the sense, sight really actually work?
2006-09-08 00:08:54 · update #1
The light enters your eye and is focused onto the retina by the lens. On the retina, millions of light receptors detect the light rays and sends the information to your brain through the optic nerve. The brain interpretes the signal and sight is formed.
For a more detailed explanation, go to http://en.wikipedia.org/wiki/Eye#Anatomy_of_the_mammalian_eye .
2006-09-08 00:03:00 · answer #1 · answered by papyrus 4 · 0⤊ 0⤋
Perhaps the diagrams in the link will help. Remember that light (that travels at the speed of light!) consists of photons which are tiny packets of energy. When photons pass through the lens of your eye they are focused to form an inverted "picture" on the retina of your eye. The photons are of different visible wavelengths representing primary colors and cause chemical reactions in cones on the retinal sensitive to the given colors. The different blends of the three colors make up all the hues of the rainbow (like mixing paints). The chemical reactions produce a stream of signals through the optic nerve to a set of screens (like TV) in areas on the back of the head (like cupping your hands there). The layered screens interpret what you "see" with your eyes into what you see with your brain.
2006-09-08 00:53:19 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
The brain controls it. Like your PC, the brain operates through its nerve network.
2006-09-07 23:58:31 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I know what you're asking. Others gave you the mechanics of it, but how the brain processess it and conciousness recognizes what we see, is still a mystery. Don't accept any other answer--I'm correct.
2006-09-08 03:42:27 · answer #4 · answered by Sick Puppy 7 · 0⤊ 0⤋
A man is riding through the desert on his camel and finds a sudden urge to have sex. Realising that there are no women around he turns to his camel. Just as he tries to position it, it turns around and bites him on the balls. He gives up and carrys on riding.
A few days later he gets the same feeling all over again, still there are no women around so again he is forced to rely on his camel. However, as he tries to position it, the camel bites him on the balls again. As before he gives up and carries on riding. A couple of days later, he reaches a small village only to find 3 gorgeous looking blondes in the back of a mini cooper. One of them gets out of the car and approaches him.
"Excuse me" she said "but could you fix our car, as we have just broken down, we'll offer you anything in return?"
Knowing alot about mechanics the man takes up the offer and agrees to fix their car. An hour later, the man had fixed the car and all three blondes walked up to him.
"Thank you very much, thats great!" said the first blonde.
"Well what do you want us to do?" said the second.
"We'll do anything!" said the third
After thinking about this for a while the man replies "Can you hold my camel's head still?"
2006-09-08 00:00:35 · answer #5 · answered by Anonymous · 1⤊ 1⤋
the retina takes a upside down picture that is flip flopped upside right by are eyes it is all controled by nerves system
2006-09-08 00:02:57 · answer #6 · answered by Anonymous · 0⤊ 0⤋