at these two upside-down pictures of Mona Lisa.
Now look at the same images right side up. (Turn your
monitor upside-down if you don't believe us!)
recognized Mona Lisa right away--even upside-down. Two
upside-down Monas may look strange (one perhaps stranger
than the other), but turn them right-side-up and one
looks normal, the other grotesque. Why the surprising
an upside-down face is not a familiar point of view,
you may not have noticed that one of these pictures
has been altered. In the right-hand photo, Mona's
eyes and mouth have been turned around. It's only
when the photos are turned right-side-up, and the
view is more familiar, that you notice the real distortion.
Since you are obviously using a computer to view this,
you may have access to photo-processing software and
image-capture hardware. Try to capture your own face
and flip the eyes and mouth. COOL!!