Saturday, August 22, 2009

Why can't we see in the dark?

The human eye use light to see. Light bounces off your surroundings and into your through your pupil, the black hole at the centre. A picture forms on your retina, the lining at the back of the eye. Your brain makes sense out of what you see. Without light, there is nothing to enter your retina and start the whole process going.

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