Berlin interactive artists Gunnar Green and Frederic Eyl, Aperture includes dozens of tiny aperture holes that (with a slight delay) open if there is no light and closes if there is. The result is the silhouette of passersby.
Jan van Eyck : The Last Judgement, c. Right panel of Crucifixion and Last Judgment diptych. Oil on canvas, transferred from wood. The Metropolitan Museum of Art, New York. "Among the earliest surviving works by Jan van Eyck"