Before revision: The spinning dancer is a kinetic, bistable optical illusion resembling a pirouetting female dancer The spinning dancer, also known as the silhouette illusion, is a kinetic, bistable, animated optical illusion originally distributed as a GIF animation showing a silhouette of a pirouetting female dancer.
After revision: The spinning dancer is a kinetic, bistable optical illusion resembling a rotating female dancer The spinning dancer, also known as the silhouette illusion, is a kinetic, bistable, animated optical illusion originally distributed as a GIF animation showing a silhouette of a pirouetting female dancer.