i know we can damage our eyes but i need a more scientific explanation than that i've never really thought about it until now...
2007-03-17 05:42:31 · 8 answers · asked by mexican_mami_713 1 in Science & Mathematics ➔ Astronomy & Space
The Sun is very bright and by focussing the light onto the back of your eye (the retina) with or without a telescope, you are putting a lot of energy (both optical light and infra-red) onto a tiny area. At some point in your life you may have tried to set paper on fire using a magnifying glass, so just think about that being done to the back of your eye. It isn't nice. Even more scarily is the fact that the retina of your eye does not have pain receptors, so you will not even feel the damage being done. It may not even become apparent until later.
Looking directly at the Sun causes phosphene visual artifacts and temporary partial blindness. It also delivers about 4 milliwatts of sunlight to the retina, slightly heating it and potentially (though not normally) damaging it. UV exposure gradually yellows the lens of the eye over a period of years and is thought to contribute to the formation of cataracts, but this depends on general exposure to solar UV, not on whether one looks directly at the Sun.
Try this website for a more detailed explanation:
http://en.wikipedia.org/wiki/Sun
2007-03-17 05:53:35 · answer #1 · answered by Srah 2 · 0⤊ 1⤋
The sunlight will get focussed to a spot at the center of the retina and can burn the tissues! So, definitely dangerous. No only sun any bright light like the arc from a welding torch should no be seen with naked eye.
2007-03-17 05:48:36 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
This is because the eye pupil reduces its volume in light so that it only gets the required light. Since the sun is extremely bright, the eye pupil won't be able to rduce its volume enough to avoid the damage of the eye that may be caused by the extremely bright light.
2007-03-17 05:57:59 · answer #3 · answered by lola 1 · 0⤊ 0⤋
If you stare at it too long the photons will fill up your eyes, and those photons will knock the other photons off their guide waves. They'll start bouncing around in your eyes like madmen. If you keep staring so many photons will get in your eyes that your eyes will explode. Then you have black jelly all over your clothes. Cause your eyes are filled with black jelly.
2007-03-17 05:52:39 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Solar radiation contains ultraviolet wavelengths powerful enough to do permanent damage to human retinas.
2007-03-17 05:47:42 · answer #5 · answered by Diogenes 7 · 0⤊ 0⤋
It'll blind you. Especially don't look at it with a magnifying glass, because it will burn you. The UV rays are harmful and can cause cancer.
2007-03-17 05:48:31 · answer #6 · answered by Lucy 4 · 0⤊ 0⤋
It's so bright it'll make your eyeballs burst into flames, and the fire will burn your brain, and the smoke will come our of your ears.
2007-03-17 08:43:38 · answer #7 · answered by KevinStud99 6 · 1⤊ 0⤋
We shouldn't? Uh oh...
2007-03-17 06:20:23 · answer #8 · answered by Anonymous · 1⤊ 0⤋