The most outstanding effect in night illumination is produced by the scintillator, consisting of a battery of twenty-four arc searchlights having a total light output of 1,920,000,000 condlepower. Mounted on swivel and trunnion bases, these 36-inch projectors may be turned at any angle, to shoot variegated patterns of colored light into the sky. The scintillator is located on the shore of Lake Michigan just south of the Travel and Transport Building, and nightly paints the sky in brilliant orange, blue, purple, green, and rainbow hues, great pencils of colored light ever flashing in changing patterns.
