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Video:
This one appears to be moving/waving. But it's not of course.
It appears that there's a bulge in the center of this square. But all the lines are actually straight lines.
Simultaneous Contrast Illusion. The horizontal grey bar is the same shade throughout.
Just read the picture.
The circles in the middle of each configuration are actually the same size.
When looking at this picture the lines look curved, but they are really straight.
A chicken's head battered up - that's just nasty.
This is just a little doodle that my wife drew, I thought it was cool...have a peek.
I like this one best.
Oh my gosh it's a computer!
