The solid glass ball, which is about the size of a basketball, is resting on a table about fifteen feet from the grey stone wall. The images of the red flowers and other items become inverted as their light travel through the ball. I don't know the scientific explanation for this process, but I do however, think it makes a very interesting image with the blend of lighting and colors. I was curious when I saw it on the floor so I put it on the table to check it out. I'm glad I did.