A group of Kinetic artists formed in Paris in 1960. The members, who included Julio Le Parc and Vasarely's son Yvaral, adopted a scientific approach and investigated the use of modern industrial materials for artistic purposes. As well as creating individual works, they often worked together on anonymous collective projects, and it was one of their aims to produce art that called for involvement from the spectator. The group had its base at the Galerie Denise René, but on various occasions it attempted to bring art into the life of the streets. It disbanded in 1968.