March/April 2005 Editor's Note Invention and Discovery Discipline and Play Scholar David Billington talks with NEH Chairman Bruce Cole about the history and art of engineering. The Elasticity of Time Einstein's 1905 theory of relativity is put to the test. By Daniel Seigel A New Look at Old Buildings Advanced technology turns structures inside out for students. By Victor Wishna Making Music The Crucible of the Cotton Club "Stormy Weather" launches the career of songwriter Harold Arlen. By Eileen Mackevich Around the Nation In Focus Marcia Wolter Britton explores what matters to Wyoming. By Melissa Forbes