Together with Otto Piene, Heinz Mack founded the artist group ZERO. Not only light, but also movement, dynamics, space and time, vibration and serial structures came to the fore in his works and made him one of the main proponents of Kinetic Art. With his so-called 'Rotoren' - where elements equipped with relief structures are moved by motors - and his 'Lichtreliefs' made out of pressed aluminium, foil or acrylic glas, Mack tirelessly experimented with the laws of light and shade, structure and form, and placed them in ever new dialogues. Mack's light installations belong to the earliest examples of Land Art.
