In 1965, Bruno Munari designed a small black box — the austere 15-cm steel cube housed four aluminum cones, each painted half-red and half-green and set to spin at four distinct speeds on an 18-minute cycle to produce a very slowly turning composite color moving from red to green.
Munari called it the Tetracono and its function was to show forms in the process of becoming:
The art of the past has accustomed us to seeing nature as static: a sunset, a face, an apple, all static. People go to nature looking for images such as these static things, whereas an apple is in ...