Data derived from the change in positions of ants and people from one sampled video frame to the next is mapped to an 8X8 grid and then sent to the lighted balls.  The display screen shows red and yellow circles to indicate detected differences between sampled images.  Red lit balls indicate the movement of ants, while yellow ones indicate movement of people.  The lights update row by row in a slow raster scan.  Data on people movement is also sent to the second box of balls. These balls are triggered to jump up in the locations of the grid that indicate motion within the view of the overhead camera.  The sound is somewhat like popcorn popping in short bursts every 10 seconds.  The bouncing balls are fired by solenoids in a raster sequence that creates staccato bursts as rows of balls are fired into the air inside their cube.