Posted on 06/23/2015

Photo taken on June 23, 2015

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UW Madison campus, west side

UW Madison campus, west side
This is a crossview image, designed to produce a 3-D effect without the use of special glasses.

Instructions: while looking at the pair of pictures, cross your eyes very gently and watch as the images start to overlap. When you find the correct overlap, there will be exactly three images. Let your attention linger on the middle one until your perception locks in and you see depth.

Some people have better luck with this in full-screen mode.

Why it works: your right eye sees the left image, and vice versa. Because of the way the lenses were positioned, your visual cortex receives the same information as if you were physically in the scene.