Image Fulgurator

This is a bit of subversive art. Basically, the inventor rigged a camera to use slide film as a projector, and attached it to a light sensor which activates the projector for only a few milliseconds when a flash is detected. It's similar to how people photograph lightning. This first test in public overlaid a message on top of a sign at Checkpoint Charlie that people die crossing the US / Mexico border, while tourists cross borders every day without threat.Link.