by R.R. Bukrey Physics Department Loyola University, Chicago, Illinois We are pleased to report that a classic atomic-scale physics experiment -- the double-slit experiment -- has now been carried out on a macroscopic scale. We have demonstrated the wave/particle duality of a familiar, "everyday scale" phenomenon -- the stream of cars passing through the exit lanes of the Loyola University of Chicago parking garage. Figure 1. The twin exit lanes of the parking garage. Background: The Wave-Particle Dualit...