I always hated measuring things in elementary school. They'd always
count me off a point if I was just one millimeter off. At least I understood
the concept and wasn't as far off as the guys next to me missing by
inches. Sheesh. One millimeter....
ANYWAY: Here's the answer to this optical illusion trick. At first
glance, it looks like 1-5 is 5, plus 5-9 is 4 more, so what's the deal
right? ACTUALLY, both distances are identical if you look again. We
actually start the measuring at 1, so 5 - 1 is 4, and 9-5 is 4. So of
course, they're both equal distance.
If you've already seen this optical illusion, I hope you agree that
this is one of the better versions of it floating around.
Please rate this illusion/picture. Your ratings help us choose which new optical illusions to create, plus, it's fun!
Best of the Best ...
Most Popular for June 2010:
Same Shade Diamonds Our newest optical illusion.
We just created it on 10/10/2009
Wow! It will look like the diamonds on the top are much darker than the diamonds on the bottom.
You won't believe how amazing this incredible optical illusion is.
Watch as the scary faces disappear before your eyes.
The longer you stare the stronger the illusion. Perfect to send to your friends for Halloween!
The Obama Illusion
We made this original Barack Obama Illusion and then we made it famous!
Stare for about 30 seconds and you'll see his ghostly image appear on the wall!
Valentines Day Love Test Illusion
This is one of our most highly rated illusions by our visitors. Watch the hearts disappear before your very eyes!
This is really cool. You'll start to see the hearts disappear as you fixate at the center. Don't miss it.
Moving Spiral Illusion
A version of our original moving spiral illusion was recently published in a popular college textbook.
It uses multiple illusory principles to give the illusion that it is moving when it is absolutely not moving. Big enough to be your desktop background!
Build Your Own Impossible Triangle
Instructions so you can build your own impossible triangle. Tell M.C. Escher that it's not so impossible after all!
Comes with a printable PDF guide with dotted lines for the folds and clearly marked lines to cut. See pictures of visitors submitted triangles too!
If you don't have time to see the hundreds of illusions today, see if you can at least catch all of these...
