A type of “writing” named for this concept titles a Man Ray photograph in which his signature appears in penlight over a self-portrait, often called the first light painting. The “White Manifesto” prefigured a movement named for this concept that was led by the canvas-slashing Italian painter Lucio (-5[1])Fontana. This concept and “light” (-5[1])provide an alternate (10[1])title for the “Light Prop for an Electric Stage,” (10[1])a rotating kinetic “modulator” by László Moholy-Nagy (“LOSS-low MOH-ho-lee-NAHJ”). This is the last word in the title of a sculpture of the “Development of a Bottle” and of another sculpture by the same artist that depicts a body in motion; that bronze Futurist sculpture by Umberto Boccioni is titled for “Unique Forms (10[1])of Continuity (10[2])in” this concept. (10[1])For 10 points, (10[1])empty parts of a canvas are called what concept’s (10[1])“negative” form? ■END■ (10[2])