This week on “The Learning Curve," co-hosts Gerard Robinson and Cara Candal talk with Prof. Paul Israel, Director & General Editor of the Thomas A. Edison Papers at Rutgers University, and author of Edison: A Life of Invention, the definitive biography of America’s greatest inventor. Professor Israel describes Edison’s public and private life, as well as the impact of his world-changing inventions, such as the hot-filament light bulb, the phonograph, and the motion-picture camera.