Lasers: The Light Fantastic

Lasers: The Light FantasticThe sign on the gray metal door warns in red: DANGER. LASER LIGHT. Within, a smaller sign quietly continues the warning: Danger. Invisible Beams. High Energy.There are laboratories such as this all over the country--indeed. all over the world. This one belongs to the Perkin-Elmer Corporation at Norwalk, Connecticut. It is a long, darkened room cluttered with equipment. Electrical cables lie tangled across the narrow floor space like spaghetti on a plate. The room is do...