greatest dignitaries hobnob with youth. When a group of Oxford undergraduates heard that Rudyard Kipling received ten shillings for every word he wrote, they sent him ten shillings by telegram during their meeting: “Please send us one of your very best words.” Back came the word a few minutes later: “Thanks.” The hybrids of electricity and the older mechanics have been numerous. Some of them, such as the phonograph and the movie, are discussed elsewhere in this volume. Today the wedding of mechanical and electric technology draws to a close, with TV replacing the movie and Telstar threatening the wheel. A century ago the effect of the telegraph was to send the presses racing faster, just as the application of the electric spark was to make possible the internal-combustion engine with its instant precision. Pushed further, however, the electric