15 Best Optical Illusions That Make You Hallucinate

Some people like optical illusions, others find them annoying. In any case, this will interest you, because we reveal what is behind those effects that seem most surprising to us!

1. Fraser’s spiral

Frasers spiral

Frasers spiral

This optical illusion is created by overprinting different lines that appear to form a spiral. Actually, the arcs you see are a series of ordinary circles.

2. The Ebbinghaus Illusion

Ebbinghaus Illusion

Ebbinghaus Illusion

This optical illusion is named after a German psychologist. It consists of making a mistake when it comes to recognizing the diameter of the circles. The two central circles are actually the same size.

3. The illusion of the impossible cube

illusion of the impossible cube

illusion of the impossible cube

Invented by Charles Cochran in 1966. It is based on drawing wrong connections between the corners of the cube.

4. Zollner illusion

Zollner illusion

Zollner illusion

A group of parallel lines crossed by oblique lines at different angles. The lines appear to diverge, but they are parallel. The funny thing is that the effect was discovered by a German astrophysicist named Zollner when he looked at the fabric of a garment.

5. Jastrow Illusion

Jastrow Illusion

Jastrow Illusion

This illusion was demonstrated by an astrophysicist named Jastrow. The interesting thing here is that, although it may not seem like it, the two figures are equal in size, but they appear different when you put them together in a specific way.

6. The Kanizsa triangle

Kanizsa triangle

Kanizsa triangle

This illusion is named after the Italian psychologist Gaetano Kanizsa to prove that the perception of reality is not totally authentic, but that we fill it with mental filters which they call ‘mental models’. There appears to be a bright triangle in the center, but it doesn’t really exist.

7. Poggendorff Illusion

Poggendorff Illusion

Poggendorff Illusion

This classic illusion was created by a German physicist named Poggendorff. The black line continues with the red line, but mentally you tend to think that the continuation is the blue line.

8. Blivet

Blivet

Blivet

This impossible contraption is an example of optical geometry illusion. The figure doesn’t really exist.

9. white illusion

white illusion

white illusion

At first glance, it would seem that all the rectangles are of different color, but in reality they are exactly the same. The effect is produced by the contrast between white and black.

10. Movement illusion

Movement illusion

Movement illusion

Some color contrasts in a certain pattern create the illusion of movement, even though it is actually a still image.

11. Hermann’s grid

Hermann grid

Hermann grid

Ludimar Hermann discovered this effect in 1870 while reading a book. He noticed that gray dots appeared ghostly at the intersections of white lines on a black background.

12. Elders or a musical accompaniment

musical accompaniment

musical accompaniment

If you look closely, you can see two different scenes.

13. Rotating illusion

Rotating illusion

Rotating illusion

If you focus your view on the central point and alternately zoom in and out, you will notice that a circular line rotates in one direction and another in the opposite direction.

14. The illusion of the Coffee Wall

illusion of the Coffee Wall

illusion of the Coffee Wall

At first glance the horizontal lines are slanted. They are actually perfectly parallel. Richard Gregory discovered them on the walls of a cafeteria, hence their name.

15. The illusion of spinning wheels

illusion of spinning wheels

illusion of spinning wheels

If you look at this image, you will see that the wheels turn in different directions, but if you focus on one specifically, you will notice that the wheels are turning.

Pictures by: http://marcianos.com/

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