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9 Optical Illusions to Confuse Your Brain

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?

Which object is taller?

None: They’re all the same size.


WHICH LINE IS LONGER?

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Neither: They’re both the same.


IS THIS GRAY HAZE SHRINKING?

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


DO THESE COLORED LINES BEND?

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


ARE THESE WHEELS SPINNING?

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


HOW MANY BLACK DOTS CAN YOU COUNT?

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Look closely and you will see them.


DO YOU SEE TWO FACES OR A VASE?

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


ARE THESE LINES STRAIGHT OR CROOKED?

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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 of paper and you’ll see a red, white and blue flag.

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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. the non-spining circeland the yellow blue and blak flag did not work

  2. the flag didnt work 4 me 🙁

  3. Books are awesome!!!! // August 31, 2007 at 7:51 pm // Reply

    The flag and the spinning circles are AWESOME!!!! Most of the others I’ve seen before though.

  4. billy bob joe // August 28, 2007 at 2:06 pm // Reply

    that is just awsome

  5. awesome!!!!!!!!!!!!!!!!

  6. magic is fake

  7. i willgo to google

  8. you can sometimes see more than one flag

  9. look at the gray hase 5 ft. from it.it gets big really big than small

  10. if you think that was cool got to a magic show it’s awsome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

  11. jasdgflagfywyu3 // August 7, 2007 at 12:59 pm // Reply

    awsome they are very Cool

  12. Derrick, Age 10, Florida // August 2, 2007 at 9:37 am // Reply

    This was really cool!! I have a book on optical illusions which has a lot of the same pictures as this activity page. The only thing that didn’t work for me was the “which person is taller” thing. I’ve doe something like that in art class, so kind of saw right through that one. The other ones were awesome, and I really liked the flag. Be sure to stare at it for a full minute, because I tried to cut the tme and it didn’t work! The “Is This Gray Haze Shrinking?” trick is really interesting, because the haze almost disapers. For the “How Many Black Dots Do You See?” one, the dots are white, but apper to jump around, because you are staring at a black grid, so you see a few black dots in different places, but then they are gone!

    There is another optical illusions trick I know too, the color one. Is is where you look at about 10 words and each word says a color and is a color. For example the word “pink” would be the color red. The word “green” would be the color black. You are supposed to say the word, not the color of the word. (Confusing, huh?) It is a lot harder then it sounds and you get really mixed up! Thanks for the illusions! 🙂

  13. The flag was amazing. All I had to to was blink at the paper, and every time I blinked, I saw the flag.

  14. karl franz // July 31, 2007 at 7:51 pm // Reply

    these are all actually quite simple to figure out if you just think, or if youve seen them already lol.

  15. Cloud Strife // July 31, 2007 at 5:11 pm // Reply

    weird I liked them

  16. Same ol’ same ol’

  17. shortyandyouknowit // July 30, 2007 at 6:27 pm // Reply

    go to google search “opticle illusiuns”

  18. "the dude, man...." // July 29, 2007 at 5:30 pm // Reply

    all of these r pritty cool

  19. ive seen all of those

  20. i liked the flag the best.so did my dad

  21. mitchellea4 // July 23, 2007 at 7:51 pm // Reply

    ive seen all of those other places

  22. thinkguy33 // July 22, 2007 at 3:18 pm // Reply

    ive seen better ones. one was called mr.happy and mr.angry. you see a happy guy and an angry guy. but as you get farther away, the angry guy becomes happy and vice versa. 🙂

  23. There cool but i cant work out the last one about the flag?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!

  24. macxthegamer // July 15, 2007 at 6:16 pm // Reply

    lol, they’re pretty good, but I’ve seen em before.

  25. How do the dots work?

    Your friend, Hot Rod.

  26. astromatt7 // July 10, 2007 at 6:26 pm // Reply

    It was really cool! I liked all of them, especially the gray haze. I showed them to my sister, and she likes them, too!

  27. THE BLUE MAN // July 10, 2007 at 5:29 pm // Reply

    AWSOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  28. My eyes are that dumb???

  29. Dude thats crazy.

  30. it’s so cool!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!{=)

  31. Sweet flag!!!!!!!! (=

  32. i liked them all but the wheel one was like amazing how our eyes do that

  33. little viking // July 6, 2007 at 8:28 pm // Reply

    theese were the best tricks i’ve ever seen

  34. i love illusions !!!!!!!!!!!!!

  35. noahfoss98 // July 4, 2007 at 10:31 am // Reply

    I like the wheel & the dots:-)

  36. Howsaboutislapya // July 1, 2007 at 9:25 pm // Reply

    The flag is really cool

  37. OpticalWOW!!!!!!!!!! // July 1, 2007 at 7:32 pm // Reply

    I DON’T GET THE FLAG BUT, THIS IS FUN

  38. pattmann3223 // July 1, 2007 at 6:10 pm // Reply

    gimmie some more please!!!!!!!

  39. dododododo // July 1, 2007 at 2:48 pm // Reply

    I liked them all, but the wheel one has always been my favorite.

  40. i’ve seen um all before but there still pretty cool

  41. Deathwalker 9000 // June 30, 2007 at 4:37 pm // Reply

    (-: Me love da flag!!!!!!!

  42. they were good but ive seen all them before

  43. the one about the wheel ROCKS!!!!!!!!!!!!!!!!!!!!!!

  44. Sweeet!

  45. troop 136 from lufkin tx // June 27, 2007 at 10:24 pm // Reply

    that was cool!

  46. i think the flag is fantaaaaaaaaaastiiiiiiiiiiiiiiic!!!!!!!!!!!!!!!!!!

  47. Exterminator // June 27, 2007 at 12:20 am // Reply

    Noodle: I’ve seen tat one before too.

  48. that was really cool awsome

  49. retiredbearcub56 // June 25, 2007 at 4:29 pm // Reply

    OPTICAL ILLUSIONS ARE WICKED

  50. My favorite illusion on here is the one about the wheel.

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