apa yang kita lihat ...

radja

benarkah ada kajian sains bahawa apa yg kita lihat 'terbentuk' imejnya di mata kita..bukan 'terbentuk' di benda yg kita lihat...

eg kita lihat kereta is kereta di parking spot..
tp actually 'kereta is kereta' terbentuk di imejnya dimata...bukan di tempat terletaknya kereta itu..

tlng jelaskan,dulu2 masa sekolah ada belajar bab imej di retina ni..skrg dh lupa...

sinalegna

Visual information from the retina travels from the eye to the brain via the optic nerve. Because eyes see from slightly different positions, the brain must mix the two images it receives to get a complete picture.

What we think of as seeing is the result of a series of events that occur between the eye, the brain, and the outside world. Light reflected from an object passes through the cornea of the eye, moves through the lens which focuses it, and then reaches the retina at the very back where it meets with a thin layer of color-sensitive cells called the rods and cones. Because the light criss-crosses while going through the cornea, the retina "sees" the image upside down. The brain then "reads" the image right-side up.



Aqueous Humor: a clear, watery fluid that fills the front part of the eye between the cornea, lens and iris.

Choroid: the middle layer of the eyeball which contains veins and arteries that furnish nourishment to the eye, especially the retina.

Conjunctiva: a mucous membrane that lines the eyelids and covers the front part of the eyeball.

Cornea: the transparent outer portion of the eyeball that transmits light to the retina.

Fovea: A tiny spot located in the macula that is the area of clearest vision on the retina.

Iris: the colored, circular part of the eye in front of the lens. It controls the size of the pupil.

Lens: the transparent disc in the middle of the eye behind the pupil that brings rays of light into focus on the retina.

Macula: is a small area of the retina located near the optic nerve at the back of the eye. It is responsible for our central, most acute vision.

Optic Nerve: the important nerve that carries messages from the retina to the brain.

Pupil: the circular opening at the center of the iris that controls the amount of light into the eye.

Retina: the inner layer of the eye containing light-sensitive cells that connect with the brain through the optic nerve. It also contains retinal blood vessels which feed the retina and which can be affected by diabetes.

Sclera: the white part of the eye that is a tough coating which, along with the cornea, forms the external protective coat of the eye.

Vitreous Body: a colorless mass of soft, gelatin-like material that fills the eyeball behind the lens.

radja

jd apa yg kita lihat sebagai 'benda' tu 'wujud' nya di mana? di otak...atau di tempat yg kita lihat..

eg. apa yg kita nampak sbg komputer depan mata kita ini,adakah wujudnya di DEPAN  kita atau dI OTAK kita?

sinalegna

bagaimana imej wujud :
1. objek yang kita lihat
2. di pantulkan pada retina (terbalik)
3. dalam otak

kerana cahaya melalui kornea secara terpantul, imej pada retina akan terbalik. otak pula membaca imej yang terpantul pada retina secara normal (songsang daripada imej yang terbalik terbalik).

ussopp

Originally posted by radja at 11-12-2007 09:59 AM
jd apa yg kita lihat sebagai 'benda' tu 'wujud' nya di mana? di otak...atau di tempat yg kita lihat..

eg. apa yg kita nampak sbg komputer depan mata kita ini,adakah wujudnya di DEPAN  kita ata ...

hehe...pernah baca tulisan harun yahya ker??

tentang dunia ilusi tu....???

ya semua yg kita alami sekarang adalah terjemahan dari otak kita sahaja...semuanya being intrepreted dlm otak kita...

kita sebenarnya tidak tahu apa sebenarnya yg ada di luar otak kita...hehehe....

[ Last edited by  ussopp at 11-12-2007 06:14 PM ]

wei_loon5063

Originally posted by ussopp at 11-12-2007 06:12 PM


hehe...pernah baca tulisan harun yahya ker??

tentang dunia ilusi tu....???

ya semua yg kita alami sekarang adalah terjemahan dari otak kita sahaja...semuanya being intrepreted dlm ota ...

hey there.. long time no see.. i went to borders recently and saw a book.... there`s a phrase... nice one...

man tries to find the great mystery out space, under sea, but the greatest mystery is not there or down, but in us... it is us.. our existance is the greatest mystery of all....

ussopp

Originally posted by wei_loon5063 at 16-12-2007 08:51 PM


hey there.. long time no see.. i went to borders recently and saw a book.... there`s a phrase... nice one...

man tries to find the great mystery out space, under sea, but the greatest myst ...

hey...yes...long time no see...
you la...lama tak nampak...!!!

the phrase is just just right....

tarabas1976

imagine it like this, a fish inside a fish pond...that particular fish can only know what is outside the pond from the sun and rain drops that dropped on the surface of that pond. The existence of the "real world" outside the fish pond projected into the pond by what interfere the surface of the pond itself.

Imagine that pond as our brain and the pond surface as our sense (whether its a vision, hearing or whatsoever) and that fish as our conciousness.