The human eye is a wonderful instrument, relying on refraction and lenses to form images. There are many similarities between the human eye and a camera, including:
a diaphragm to control the amount of light that gets through to the lens. This is the shutter in a camera, and the pupil, at the center of the iris, in the human eye.
a lens to focus the light and create an image. The image is real and inverted.
a method of sensing the image. In a camera, film is used to record the image; in the eye, the image is focused on the retina, and a system of rods and cones is the front end of an image-processing system that converts the image to electrical impulses and sends the information along the optic nerve to the brain.
The way the eye focuses light is interesting, because most of the refraction that takes place is not done by the lens itself, but by the aqueous humor, a liquid on top of the lens. Light is refracted when it comes into the eye by this liquid, refracted a little more by the lens, and then a bit more by the vitreous humor, the jelly-like substance that fills the space between the lens and the retina.
The lens is critical in forming a sharp image, however; this is one of the most amazing features of the human eye, that it can adjust so quickly when focusing objects at different distances.
The answer is C. Self expression
I just took the test.
Answer:
Ultraviolet Rays,can cause sunburn to the cornea which is a part of the eye
Was this a question on merging the two sentences together?
Explanation:
Martin Luther King's efforts were inspired by Thoreau's definition of Civil Obedience being his words an extension of Thoreau's in his text. Both of them went to jail under a law that they resisted to, which is a form of peaceful political protest. In the Thoreau's "On the Duty of Civil Disobedience" we get the same message that we get from King's letter:
"<em>Under a government which imprisons any unjustly, the true place for a just man is also a prison</em>."
<em> (...) It is there that the fugitive slave, and the Mexican prisoner on parole, and the Indian come to plead the wrongs of his race, should find them; on that separate, but more free and honorable ground, where the State places those who are not with her but against her,—the only house in a slave-state in which a free man can abide with honor.</em> <em>If any think that their influence would be lost there, and their voices no longer afflict the ear of the State, that they would not be as an enemy within its walls, they do not know by how much truth is stronger than error, nor how much more eloquently and effectively he can combat injustice who has experienced a little in his own person."</em>
<em> </em> The excerpt above it's similar to Luther King's because it shows that even from jail, the one who find a law to be unjust and suffers it's penalty, is able to show society how unjust this law is, this attitude may change the law quicker , as many just men suffers from it.
Abraham (middle name lincon) i might be wrong though
