ABSTRACT
A rising popular interest in science and technology and a renewed faith in their joint powers to benefit mankind in peacetime were among the legacies of the Great War. Some of the increasingly tangible signs of the everyday world to come were automobiles, commercial road transport, passenger aircraft, the cinema, and radio communications. The advent of broadcast radio at the popular level in 1920 and its rapid spread during the next five years heralded a revolution not only in telecommunications but in the domestic and cultural environment of almost everyone in the industrial countries. The radio boom of these postwar years brought science and technology into the home as amateurs of all ages built their simple receivers and followed accounts of new developments as well as techniques in newspapers and technical journals.
