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2007-03-18 14:24:34 · 13 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

13 answers

going blind

2007-03-18 14:26:44 · answer #1 · answered by Anonymous · 0 0

Here is the truth on solar eclipses. Without the moon, the sun is so bright that you do not look at it. And if you do, you see yellowish spots in your eyes for some time. This may be from permanant damage and the only way to tell for sure is to have your eyes examined before the eclipse and then again after. During the eclipse, it is actually "safer" than not during an eclipse because it is not so bright. HOWEVER...because it is not so bright you look LONGER. The UV rays are still there and your eyes are still burnt. So....want to take a chance? With or without the moon, it is only safe to look at the sun by reflection from a mirror to a wall or ceiling, or pin hole viewing.

2007-03-18 14:46:08 · answer #2 · answered by orion_1812@yahoo.com 6 · 1 0

I think Astro has hit on the greatest danger. Many people, after witnessing a total solar eclipse, will leave behind family and work and spend thousands of dollars traveling to remote places without so much as a Starbucks, so they can see another one. Addiction can occur after a single eclipse; so ask yourself, is it worth the risk?

2007-03-18 20:08:08 · answer #3 · answered by injanier 7 · 0 0

Looking directly at the photosphere of the Sun (the bright disk of the Sun itself), even for just a few seconds, can cause permanent damage to the retina of the eye, because of the intense visible and invisible radiation that the photosphere emits. This damage can result in permanent impairment of vision, up to and including blindness. The retina has no sensitivity to pain, and the effects of retinal damage may not appear for hours, so there is no warning that injury is occurring.

Under normal conditions, the Sun is so bright that it is difficult to stare at it directly, so there is no tendency to look at it in a way that might damage the eye. However, during an eclipse, with so much of the Sun covered, it is easier and more tempting to stare at it. Unfortunately, looking at the Sun during an eclipse is just as dangerous as looking at it outside an eclipse, except during the brief period of totality, when the Sun's disk is completely covered (totality occurs only during a total eclipse and only very briefly; it does not occur during a partial or annular eclipse). Viewing the Sun's disk through any kind of optical aid (binoculars, a telescope, or even an optical camera viewfinder) is even more hazardous.

Partial and annular eclipses

Viewing the Sun during partial and annular eclipses (and during total eclipses outside the brief period of totality) requires special eye protection, or indirect viewing methods. The Sun's disk can be viewed using appropriate filtration to block the harmful part of the Sun's radiation. Sunglasses are not safe, since they do not block the harmful and invisible infrared radiation which causes retinal damage. Only properly designed and certified solar filters should ever be used for direct viewing of the Sun's disk.

The safest way to view the Sun's disk is by indirect projection. This can be done by projecting an image of the disk onto a white piece of paper or card using a pair of binoculars (with one of the lenses covered), a telescope, or another piece of cardboard with a small hole in it (about 1 mm diameter), often called a pinhole camera. The projected image of the Sun can then be safely viewed; this technique can be used to observe sunspots, as well as eclipses. However, care must be taken to ensure that no one looks through the projector (telescope, pinhole, etc.) directly. Viewing the Sun's disk on a video display screen (provided by a video camera or digital camera) is safe, although the camera itself may be damaged by direct exposure to the Sun. The optical viewfinders provided with some video and digital cameras are not safe.

2007-03-18 19:42:25 · answer #4 · answered by neumor 2 · 0 0

The side effect I got from seeing a solar eclipse is the drive to catch every solar eclipse that happens ! No matter where you need to go around the world to see it .

2007-03-18 19:20:59 · answer #5 · answered by spaceprt 5 · 0 0

If you took all the appropriate precautions to not look directly at the sun AT ALL during the entire event, then there are no side-effects of seeing a solar eclipse.
But if you looked at the sun (in fact if you look at the sun at any time without protection) the others have given you answers already.

2007-03-18 14:56:22 · answer #6 · answered by Anonymous · 0 0

Blindness

2007-03-18 14:26:51 · answer #7 · answered by nejihyuuga_gal 1 · 0 0

Blindness, loss of vision, blindspots.... generally negative health effects.

If you are witness to a solar/lunar eclipse, its highly important that you stare *not* directly at it, and rather look away using your perhipherial vision to gaze with.

2007-03-18 14:27:50 · answer #8 · answered by kalpon777 6 · 0 0

If you watch the whole thing without proper eye protection you could (reportedly) damage your retinas. That's what I was told as a kid ... after the fact. I never watched a whole one. Just part of it. I seriously doubt that has anything to do with my poor vision today though. What I have is genetic.

2007-03-18 14:29:14 · answer #9 · answered by OP 5 · 0 0

None. Even staring directly into the sun for the entire time will only leave you blind for a few months. And that's the worst you could do to yourself.

2007-03-18 14:28:35 · answer #10 · answered by eri 7 · 0 1

Besides total blindness, nothing.

2007-03-18 14:28:13 · answer #11 · answered by Anonymous · 0 0

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