Marina Apollonio (born 1940). The ludic character of many kinetic artworks is typified by Marina Apollonio’s “Dinamica Circolare 5F”: viewers can spin the black and white, concentrically striped wooden panel and see different optical effects, depending on the speed of revolution. Playing games with collectively perceptible phenomena took on a distinctively political dimension in the 1960s. It stood for the democratization of art, and for an anti-individualistic, anti-elitist notion of art.