25 Great Optical Illusions (19 pics + 6 gifs)

Posted in PICTURES       1 Nov 2010       38513       3

Some of them you have already seen on the site but as they are really great we decided to post  them anyways along with the new ones.

 

1. It’s a simple one. How many pencils are there? There are clearly seven… what, wait! Six? No.. So how many?

1 25 Great Optical Illusions (25 pics)

2. Close your left eye and stare at the cross. As the circle moves left and right, it should pass through your blind spot and disappear completely! You may need to lean in closer to get this to work.

2 25 Great Optical Illusions (25 pics)

3. Stare at the moon long enough, and the stars should begin to fade away. How many can you get to disappear?

3 25 Great Optical Illusions (25 pics)

4. Can you tell which of these lines is longer? Test them with a ruler or a piece of paper -- you may be surprised.

4 25 Great Optical Illusions (25 pics)

5. How many colors do you see? Most people see four colors: green, blue and 2 shades of pink.

Click on the image to see the answer.

5 25 Great Optical Illusions (25 pics)

6. As the small circles intersect with the large ones, we seem to see the outlines of a growing and shrinking square. But there is no "square" -- your brain is trying to visualize in terms of solid shapes, and fills in the blanks.

6 25 Great Optical Illusions (25 pics)

7. We already had an entire post with such pictures that seem to be in motion, but nope, the aren’t moving.

7 25 Great Optical Illusions (25 pics)

8. Look at the red dot for a while and gray stripes will disappear

8 25 Great Optical Illusions (25 pics)

9. Although you don’t believe it, these lines are straight and parallel

9 25 Great Optical Illusions (25 pics)

10. These two birds are identical, not only in size but in color too.

Click to see the same image with the background removed.

10 25 Great Optical Illusions (25 pics)

11. These "fish" may appear to be wiggling, but the only thing changing in this animation is the color.

11 25 Great Optical Illusions (25 pics)

12. What do you see here at first glance? The yellow arrows pointing to the left or green arrows pointing to the right? There is no correct answer. Different people see different arrows at first (I saw the yellow ones)

12 25 Great Optical Illusions (25 pics)

13. Another "false spiral" -- actually a series of concentric circles, hard as it may be to believe. To prove that there's no spiral, try tracing your finger around one of the circles. You'll see that it never moves inward or outward.

13 25 Great Optical Illusions (25 pics)

14. Do you see the rose spots? Well, if you look at the cross, soon enough there’ll only be one green spot running around, other spots will disappear.

14 25 Great Optical Illusions (25 pics)

15. First, look at the image at a close distance, then look at it from 1 meter distance

15 25 Great Optical Illusions (25 pics)

16. Hover you mouse cursor over the picture. Does it move?

16 25 Great Optical Illusions (25 pics)

17. Which direction is the cat rotating: clockwise or anticlockwise? Once again, different people will see different direction. I see it rotating in a clockwise direction. With practice, you can make it switch at will!

17 25 Great Optical Illusions (25 pics)

18. These spirals are spinning only in your head ;)

18 25 Great Optical Illusions (25 pics)

19. Three illusions in one! This three-in-one illusion includes a false spiral, an impossible Escher-esque structure, and what appears to be a seriously warped floor...

19 25 Great Optical Illusions (25 pics)

20. The word is hidden here. Can you spot it?

20 25 Great Optical Illusions (25 pics)

21. Can you tell where on this curve the lines are the longest, and where they are the shortest?

21 25 Great Optical Illusions (25 pics)

22. Are the walls of this house facing outward, or inward?

22 25 Great Optical Illusions (25 pics)

23. Which of these two dots is in the true center of the circle?

Click on the image to see the answer.

23 25 Great Optical Illusions (25 pics)

24. Can you tell which of these cars is the largest?

24 25 Great Optical Illusions (25 pics)

25. Here's a simple one. Are these two rows of squares perfectly parallel?

25 25 Great Optical Illusions (25 pics)


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3   Comments ?
0
1.
Peanut 10 year s ago
Thanks for sharing.
       
0
2.
SuperMilow 10 year s ago
very cool stuff
       
0
3.
un visiteur 10 year s ago
ohhh my eye hurt...
       
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