Spanish visual artist Ana Soler is known for working with a multitude of objects from dangling hundreds of pairs of scissors or spoons, to creating dense clouds of string, coins, and paper cranes. In her most recent work, Causa-Efecto (Cause & Effect), she hung 2,000 tennis balls in spaces throughout the Mustang Art Gallery in Alicante, Spain. The balls are carefully aligned in suspended trajectories that appear to bounce off walls, floors, and other surfaces providing an uncanny sense of motion similar to a photograph taken with a strobe light. See much more on Soler’s fancy Flash website.