“No, this is not a photograph of the heavens, the Milky Way,
or a new constellation. It was made at a dance palace in Dayton,
Ohio. Two spotlights directed on the ball are refracted into a
thousand smaller beams by small mirrors all over the surface
of the sphere. As the ball turns, these tiny varicolored beams
produce a sort of “dizzy” effect, as the shafts of light move slowly
in all directions on the walls, ceiling, and floor of the hall.”  
— Illustrated World, Vol. 35, 1921