The fading image of the pink on the gray left a greenish hue, that's why when our eyes concentrate in the centre, we were slower to register the fading and moving image, hence we saw green. That got wrose for the pinkies when we train our eyes in the black cross instead.
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eye tricks are quite the scary way to argue the fallibility of our senses.
oops. i was just discussing philo with a friend.
senses-descartes
thanks for sharing!
.big fat choc tart man
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*cups face in horror*
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*runs around with arms in air*
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