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Cher is back on the charts with ‘Woman’s World’

Necker cube in Pompeii, courtesy of S. Jaskulowski

Necker cube in Pompeii, courtesy of S. Jaskulowski

Necker cube - Wikipedia, the free encyclopedia

Necker cube - Wikipedia, the free encyclopedia

Necker Cubes. This is an example of two identical necker cubes, the one on the left showing an intermediate object (blue bar) 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.

Necker Cubes. This is an example of two identical necker cubes, the one on the left showing an intermediate object (blue bar) 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.

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