Photography of Edwin Lewis (left) and Lee de Forest (right). Lewis was a faculty member at the Lewis Institute and held various administrative posts. De Forest, a pioneer of wireless communication, served as a faculty member at Lewis Institute during the turn of the twentieth century. During that... Show morePhotography of Edwin Lewis (left) and Lee de Forest (right). Lewis was a faculty member at the Lewis Institute and held various administrative posts. De Forest, a pioneer of wireless communication, served as a faculty member at Lewis Institute during the turn of the twentieth century. During that time he conducted his first long-distance broadcasts from the roof of Main Building at the Armour Institute of Technology. De Forest also invented of the Audion three-element vacuum tube and patented a method of recording sound on film that the movie industry would later adopt. Photographer uknown. Show less
