Your eyes can play tricks on you. Pictures that confuse your eyes and brain, tricking them into seeing something differently, are called optical illusions. See if you can figure out these optical illusions.

## WHICH OBJECT IS TALLER?

None: They’re all the same size.

## WHICH LINE IS LONGER?

Neither: They’re both the same.

## IS THIS GRAY HAZE SHRINKING?

Stare at the black dot. After a while the gray haze will appear to shrink.

## DO THESE COLORED LINES BEND?

No, they’re perfectly straight—but try telling your eyes that!

## ARE THESE WHEELS SPINNING?

Stare at the center. Now move your head back and forth toward and away from the page. The circles will appear to spin.

## HOW MANY BLACK DOTS CAN YOU COUNT?

Look closely and you will see them.

## DO YOU SEE TWO FACES OR A VASE?

If you see one, close your eyes for a moment, then look for the other.

## ARE THESE LINES STRAIGHT OR CROOKED?

Yep, you guessed it. The horizontal lines look crooked, but they are perfectly straight.

## ARE YOU SEEING RED, WHITE & BLUE?

Stare at the center of this flag for one minute. Then look at an empty white sheet and you’ll see a red, white and blue flag.

HOW THIS FLAG WORKS

Your eyes see color as measures of red or green, blue or yellow and bright or dark. When you look at a green object for a long time, your eyes get tired and start seeing red. When you look at yellow, after a while you’ll start to see blue. And darkness turns into brightness. The result: Even this wacky flag can be good, old red, white and blue—after a while!

#### 50 Comments on 9 Optical Illusions to Confuse Your Brain

1. P-nut Butter & Jelly // March 25, 2009 at 9:00 pm // Reply

These are sweet. I can just do this for hours.

2. Artificialgloop // March 25, 2009 at 5:05 pm // Reply

Illusions are fascinating.

3. I got the flag one but I only saw blue

4. Great I like it 🙂 ! Exept the flag’s lines only move :(.

5. awsome these are sweet.

6. Sweet

7. tomboy/girlygirl // March 24, 2009 at 4:22 pm // Reply

my fav is the flag 1

8. The flag thing was really cool. It really tricked my eyes

9. wow this really works!

10. im a wierd // March 24, 2009 at 2:46 pm // Reply

they all worked, but i didnt get the flag one

11. ive seen better

12. That is sweet it tottaly worked on the first try!!!! 🙂

13. these are cooler than any other optical illusions ive ever seen

14. you should definetly make more op. illusions Boy’s Life!

15. the flag one didny quite seem to work for me, but I liked the moving circles the best!

16. these are awesome

17. I likey alot.

18. Woa! faces and vases are hard to find.

19. Band Geek #1 // March 22, 2009 at 8:09 pm // Reply

My favorite is the flag trick!

20. That was sweetalishus. The flag didn’t work.

22. i thought all of then were cool but i couldn’t count the black dots, they kept on moving

23. i can not see the flag 🙂

24. this is so cool i did illusions at my school sorta like these

25. it was a little weird with the flag and the first time i looked at the vase it didn’t work but when i blinked it just appeared to me

26. cool, awsome, i love it !

27. how do they do that

28. jshcrbbs16 // March 22, 2009 at 8:46 am // Reply

those where all very cool the flag one worked but it took me a couple tries my favorite was the which 1 is bigger

29. that flag was awsome:)

30. They all work.It’s awsome!

31. ya the flag does work

32. This was awsome I showed thi to my friend it was so cool

33. the flag was so cool

34. that is creepy but the flag dosent work even though i tried it like 5 times

35. weird, but cool

36. the weel didnt work on my brother but i thot it was so cool

37. all of them worked except the black dots one

38. the dot shrinking was awsome. It looked like it grow and then shunk!

Cool

39. the flag wil not work

40. the wheel wus cool

41. the do you see two faces or a vase was awsome

42. I think they are awesome.

43. Outstanding! But The FLAG didn’t work

44. sweet but dizziness strikes again

45. The flag 1 is tricky at first but if u do it a few more times it works

46. those illusions are so cool

47. boy scout754 // March 18, 2009 at 9:15 am // Reply

idid the flag again and it worked:)

48. boy scout754 // March 18, 2009 at 9:09 am // Reply

those were amazing! but the flag did not work for me:(

49. Woa! And I thougt majic was fun!

50. woa and I thought spiders where creepy!!!