Do you see the black dots at the intersection of the gray lines? Especially when looking at black fields. But they don’t exist. This illusion is known as the Sparkling Grid, and was discovered by E. Lingelbach in 1994.
2. Focus your eyes in the center of the circle and then move your head back and forth. The outer wheels of the circle should begin to rotate in opposite directions.
3. Spinning wheels.
If you focus on the picture, all the wheels start turning (in both directions). However, if you concentrate on a single wheel, it will stop while the others continue to turn.
4. Hidden details
An elderly couple hugs, but that's not all...
5. White lines or gray spots
Look closely at the black squares. You will begin to see gray spots appearing at the intersections of the white lines among the black squares. This illusion was discovered by Ludimar Hermann in the 1870s.
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Optical illusions are widely used in advertising...
7. At first glance, it seems that this is a black and white chessboard with a green cylinder, with a shadow along the diagonal. However, black and white squares are simply different shades of gray. The 'white' squares under the shadow (including 'B') are actually exactly the same shade of gray as the 'black' squares outside.
8. Horizontal lines appear bent even though they are parallel.
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a color may appear different depending on its relationship to adjacent colors. Red appears lighter when next to white and darker when next to black.
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An illusion that plays on our perception of relative size. The first center circle appears smaller than the circle on the right. In fact they are the same.
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Known as the Fraser Spiral Illusion. The overlapping black arcs appear to form a spiral; but, arcs are simply a series of concentric circles.
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An illusion that is created by our natural desire to consider the whole, and not the individual elements of a drawing or painting. But each part of the drawing contradicts the other.
13
The jagged lines appear parallel to each other. But this is an illusion. It is created by shorter lines that are at an angle to the longer lines, and this gives the impression that one end of the longer lines is closer to us.
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Two shapes of the same size. In fact.
15
Everyone sees an inverted white equilateral triangle in front of three black disks. However, there is no triangle, although it looks brighter than the background.
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This illusion illustrates how the brain can be tricked by the interaction of diagonal and horizontal lines. At first glance, it seems that the blue line is a continuation of the black line (left picture). However, upon closer inspection, it turns out that this is a continuation of the red line (picture on the right).
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Another example of an impossible object. Three round prongs at one end become two rectangular prongs at the other. This pattern effect is known as Blivet.
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When a gray rectangle is surrounded by black, it appears lighter, even though all the gray rectangles are the same shade.
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Illusion of Movement. The brain's response to color contrasts and the position of shapes is such that this static image appears to be moving.
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Drawing of a woman walking towards a bridge. If you look closer, a face appears.
