Cinema for Box Fans, 2008

In a room, a slide projector shines light through two box fans. The first box fan is plugged in and blows air at the second box fan, which is not plugged in, but turns sympathetically. It's dependent motion is slower than that of the first and the disparity makes for a phasing that shows up as a unique pulsation of shadows on the wall.
A shutter: to think.