Discipline: Art
(1920)
Term first used in connection with the Realistic Manifesto (1920) of Russian brothers Naum Gabo and ANTOINE PEVSNER (1886-1962), but applied more frequently to a range of art styles current in the 1950s.
These include: styles in which optical illusions and visual ambiguity are emphasized, promoting instability in the spectator; objects whose appearance changes as the spectator moves position; and constructed works such as the mobiles by American sculptor Alexander Calder.
Source:
F Popper, Origins and Development of Kinetic Art (1968)