Small metal balls are dropped from the top of a wood structure to move golf balls and further the progress of a golf ball around the entirety of Rockwell Cage. Bruno B. F. Faviero—The Tech May. 9, 2016 Facebook Twitter Reddit Print Small metal balls are dropped from the top of a wood structure to move golf balls and further the progress of a golf ball around the entirety of Rockwell Cage. Bruno B. F. Faviero—The Tech