Stare at the red dot long enough, and the grey stripes will disappear
The two birds in this image are identical. Not just in size and shape, but in color too.
Don't believe us?
Check out the same image with the background removed.
Stare at the center of this simple animation and you'll be convinced you're seeing a green circle moving around the edge. But are you?
What appears to be a gaping chasm in the middle of the street...
Believe it or not, these lines are straight and parallel.
Illusion created by Emily Knight and Arthur Shapiro
These "fish" may appear to be wiggling, but the only thing changing in this animation is the color.Try moving your mouse pointer down across this image, following the pointer closely with your eyes. You should see a rippling effect moving through the picture -- even though it's a completely static image!
Believe it or not, this image is not animated. The effect persists only in your peripheral vision; if you focus on any one of the spirals, it will stop moving.
Can you tell which of these cars is the largest?
Are the walls of this house facing outward, or inward?