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272 Free necker cube impossible optical illusion outline wireframe geometry mathematics Illustrations and Royalty-free Vector Art & Clip Art

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Optical Illusion (2)
Illusion discovered in 1860 by physicist JC Poggendorff. ШеÐÂ>>яга, Ð’.Ð’., ГÐÂ>>оточкина, А.Д., ПÐÂ>>атонова, К.К. (1972). Военная психоÐÂ>>огия. Москва
human perception lines optical illusion

Optical Illusion (2)

Mathematics, Geometry

Mathematics, Geometry

2 Necker Cubes
Note the thumbnail below is a degraded version of the actual image which is much sharper. A Necker cube is basically a wireframe drawing of a six-sided cube such that it has no perspective as to whether you're looking at it from the top or from the bottom. This is an example of two exactly identical necker cubes, the one on the left showing an intermediate object going in "down from the top" while the one on the right shows the object going in "up from the bottom" which shows how the image can change its perspective simply by changing which face (front or back) appears behind the intervening object.
cube necker cube optical illusion

2 Necker Cubes

2 Necker Cubes
Note the thumbnail below is a degraded version of the actual image which is much sharper. A Necker cube is basically a wireframe drawing of a six-sided cube such that it has no perspective as to whether you're looking at it from the top or from the bottom. This is an example of two exactly identical necker cubes, the one on the left showing an intermediate object going in "down from the top" while the one on the right shows the object going in "up from the bottom" which shows how the image can change its perspective simply by changing which face (front or back) appears behind the intervening object.
geometry outline wireframe

2 Necker Cubes

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