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!

#### 33 Comments on Optical illusions to confuse your brain

1. annonomess // July 6, 2010 at 11:36 pm // Reply

the wheels one is cool

2. SALAMANDER // July 6, 2010 at 11:08 am // Reply

SEEN THEM BEFORE

3. smellygabe // July 1, 2010 at 11:03 am // Reply

THIS IS THE MOST AWESOME THING EVER!!!!

4. ‘all of them are awesome but try a little more variety.

5. the flag DOESNT WORK! All I saw was a blue box.

6. the black dot is weird its like when u blink theres black dots

7. pokemon921 // April 15, 2010 at 4:39 pm // Reply

The flag just hurts your eyes and I have seen all of the other ones before

8. I pulled my sisters over and showed them the flag illusion. They thought it was wicked!!!!!!;)

9. cool scout // March 26, 2010 at 8:41 pm // Reply

all very cool

10. these are awsome

11. I really really liked it but it was a little confusing to see.

12. FLAG=AMAZING!!!!IVE GOTTA SHOW MY SISTER THAT!!!!!

13. i love optical illusions the flag is the most intresting

14. potato eater // January 25, 2010 at 3:11 pm // Reply

I have to show my brother the flag one! It rocks!

15. Pokenate1096 // January 7, 2010 at 2:58 pm // Reply

wow that flag one is awsome!

16. it was really realy confusing to see

17. I tried the flag illusion with the vase and it really worked![:& all of them were great!

18. I tried the flag illusion on the vase/face. The colors on vase switched It really worked. :] I would look at the flag a little longer because it works try it again ummmmm K? & they were totaly awe
some.

19. awsume!! i want more!!! 🙂

20. the flag illusion was very vivid

21. v gbhnhgfgbg // December 7, 2009 at 5:05 pm // Reply

love these

22. flying turtle // December 3, 2009 at 3:32 pm // Reply

this is awesome i could really see the black dots!

23. im like an expert at optical illusions ive seen all of these before and i alredy knew everyone and the flag it works with all of them you just need the right colors for it to work i did it with the poland flag and it worked

24. The One With the face that was simple.!!!!!!!!!!!!!!!!!!!

25. i liked the flag the most