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!

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

1. blue raydude // April 2, 2008 at 9:51 pm // Reply

the flag did not work for me i looked at it for a while but still nothing

2. The american flag didn’t wprk for me.. i wish it did…

3. Rorza Vorza // March 30, 2008 at 10:04 pm // Reply

hey that wasn’t all that good

4. Robinhood1 // March 30, 2008 at 3:19 pm // Reply

These are pretty cool. One other thing: when you look at the vase/faces one, it also looks like two people about to kiss as well as just two faces.

5. optical illusions rock

6. i like the one with the faces

7. LysergDiethel // March 28, 2008 at 9:12 pm // Reply

my fav is the one with the spinning wheels!

8. I love optical illousions Oh yeah =P

9. boy scout 789 // March 28, 2008 at 4:48 pm // Reply

OUCH my eyes HELP ME

10. this is weaird // March 27, 2008 at 1:00 pm // Reply

If you stare at the flag too long your eyes will get dry so dont try unless you want to get your eyes soked.only the wheel worked i have to wear glasses