Lens: 3'x3'x3', silicon bronze with perforations.
3'x3'x3' silicon bronze, with perforations for reflected visual images. This piece acts as a lens. As light comes through it reflecting on other areas it has an image that reflects inside the curve with is ghosty 3'Dimensional. Because all this can happen with the rotations of sun around the piece all the parts are constantly changing with the angle of the sun.
This piece, Lens, takes light in and stores it as an incondescent light source. Much to study here.