Julio Le Parc, the Argentine-born artist whose shimmering mobiles, vibrating light installations, and participatory environments helped redefine the relationship between art and its audience, died on May 30 in Paris. He was 97. His son, Yamil Le Parc, confirmed the death to the Argentine newspaper La Nación. The artist had been hospitalized in recent days after a decline in health and died at the American Hospital in Paris. According to his son, Le Parc remained deeply engaged with his work until the end and had been eagerly anticipating a major retrospective scheduled to open at Tate Modern in London on June 11. He had hoped to attend the exhibition, which surveys nearly seven decades of his career. Related Articles For more than six decades, he pursued a simple but radical idea: art should not be something that happens to viewers. It should happen with them. Working with mirrors, light, movement, color, and optical effects, Le Parc became one of the leading figures of kinetic art. His installations often transformed museumgoers from passive observers into active participants, asking them …