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Universalpsykopath tugs our coat and says: Tell us about your feats of deduction and the little mysteries you've solved. Alternatively, tell us about the simple, everyday things that mystified you for far too long.

(, Thu 13 Oct 2011, 12:52)
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Anorak mode on!
It takes about ten minutes to fully adjust to darkness (twenty minutes if from full sunlight), within three to four minutes you're eyes have gained about 80%(ish) of full night vision.

In a plane crash the first thirty seconds to one minute are supposedly critical (getting your belt off etc.) so having your eyes at least partially adjusted is supposed to maximise survival rates.

Next time you go out into a dark street (no street lights) pause and see how long it actually takes before your eyes start to see what's there and not what you think is there.
(, Wed 19 Oct 2011, 17:21, 1 reply)
*notes*

(, Wed 19 Oct 2011, 20:31, closed)

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