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Got a great tip? Share it with us. You know, stuff like "Prevent sneezing by pressing you index finger firmly between your nose and your upper lip."
( , Wed 29 Nov 2006, 16:33)
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If you're trying to see something when it's dark, look near it rather than directly at it.
It's something to do with the position of the rods and cones in your eyes, apparently.
( , Fri 6 Feb 2009, 10:27, 5 replies, latest was 16 years ago)
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I think you mean look at the thing out of the corner of your eye, rather than directly at it. That works.
( , Fri 6 Feb 2009, 12:57, Reply)
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If I recall; The light-receptors at the centre (back) of your eye are good at picking up fine detail and colour, but are relatively insensitive. The surrounding receptors only pick up monochrome (white light) at a lower 'resolution', but are more sensitive to low light levels.
In evolutionary theory, this has uses - you normally only need fine detail and colour information of whatever you're focusing on (say, prey hiding in that bush; or finding ripe berries) - both activities performed in daylight.
All you needed for peripheral vision is 'movement detection' - is there something (a threat) charging towards me? This could happen at any time, so it's best if it works day and night.
And no, I didn't resort to wikipedia.
( , Sat 7 Feb 2009, 9:56, Reply)
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