Tuesday, June 8, 2010

One more optical illusion

I know I posted some optical illusions a couple of days ago, but I just could not resist...

This optical illusion is great! Again, credit Scientific American. See the squares marked A and B? They're different shades of gray, right?

Nope... They're the same color!


Anonymous said...

That's crazy. and this is shawn

David said...

Just saw your comment! Yup, it IS crazy.