“The Split”, 26"H x 20"W x 18"D (aluminum, physics books, iPod running a countdown timer program, light, shadow) uses the shadow of a “High School Physics” book to represent World Trade Center, Building #7 that fell into its own footprint at free fall speed (6.5 seconds) on the afternoon of September 11, 2001. We were told that fire caused it to fall, but that is impossible and defies the basic Laws of Physics.