Solar Eclipse in Tahiti, French Polynesia, July 11, 2010

Countdown to Eclipse

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Looking straight at a solar eclipse without proper protection can cause irreparable damage to the retina. As indicated by the World Health Organization:

«The sun is an extremely intense source of light – both visible and invisible (infrared and ultraviolet). It is so intense that when sunlight shines on our skin we feel warmth although the sun is 150 million km away from us! The lens of the eye acts as a magnifying glass. It produces tiny images on the retina of what we are viewing, with a concentration factor of about 10 000. During direct viewing of the sun, for even a few Read the rest of this entry »