Light Prop for an Electric Stage (Light-Space Modulator) | Harvard Art Museums

One of the earliest electrically powered kinetic sculptures, Light Prop for an Electric Stage holds a central place in the history of modern sculpture. Representing the culmination of Moholy-Nagy’s experimentation at the Bauhaus, it incorporates his interest in technology, new materials, and, above all, light. Moholy sought to revolutionize human perception and thereby enable society to better apprehend the modern technological world. He presented Light Prop at a 1930 exhibition of German design as a mechanism for generating “special lighting and motion effects” on a stage. The rotating construction produces a startling array of visual effects when its moving and reflective surfaces interact with the beam of light. The sculpture became the subject of numerous photographs as well as Moholy’s abstract film Lightplay: Black, White, Gray (1930). Over the years the artist and later the museums made alterations to the sculpture to keep it in working order. It is still operational today.