For the record: The “mysterious” thing about the “smile” in the Mona Lisa painting is that it looks like a smile when you see it with peripheral vision but doesn’t when you look at it directly. The effect doesn’t work nearly as well when you’re looking at a tiny picture of it, though.
For the record: The “mysterious” thing about the “smile” in the Mona Lisa painting is that it looks like a smile when you see it with peripheral vision but doesn’t when you look at it directly. The effect doesn’t work nearly as well when you’re looking at a tiny picture of it, though.
This finally answers the question of why a shear transformation of the Mona Lisa appears on the Wikipedia page for eigenvalues and eigenvectors.
[Googles for a pic of the Mona Lisa] Yes, it works for me. I guess it’s because of something like this.