Physics and Spinning Dancers

What you see is not always what you get!

Photo by Anna Marinicheva on Unsplash

Rubin’s Vase is well known in psychology. It is the two-dimensional picture in which one can see a vase in the middle of the image and nothing else. Or, one can see two opposing faces, and no vase in the middle. It is not too difficult to see both the vase image and the two faces.