One Weird Visual Illusion Explained
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This is an image of a young woman with a feathered hat looking over her shoulder. Or… is it?Her chin also makes out the nose of an old woman, looking down. And take this image ofa vase. Is it a vase? It’s also the outline of two faces.These perceptual illusions are called ambiguous figures, because they cause you to switchbetween more than one way of viewing an object.And there’s one type of visual phenomena that’s a lot weirder – personally it’smy favourite.And to experience it, I’m going to show you how to see through a hole in your hand,just by using a piece of paper. It’s really, really simple!Start with a piece of paper or even a bank note and roll it up into a tube– it’simportant to keep the tube narrow. Put that tube right up to your eye...
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This is an image of a young woman with a feathered hat looking over her shoulder. Or… is it?Her chin also makes out the nose of an old woman, looking down. And take this image ofa vase. Is it a vase? It’s also the outline of two faces.These perceptual illusions are called ambiguous figures, because they cause you to switchbetween more than one way of viewing an object.And there’s one type of visual phenomena that’s a lot weirder – personally it’smy favourite.And to experience it, I’m going to show you how to see through a hole in your hand,just by using a piece of paper. It’s really, really simple!Start with a piece of paper or even a bank note and roll it up into a tube– it’simportant to keep the tube narrow. Put that tube right up to your eye...
