. The Bell System technical journal . 24) showsthat Pupin claimed to have conceived the idea of using electrical resonance in multiplextelegraph)- in the summer of 1890, following a careful stud>- he had made of the investiga-tions of Hertz, and to have begun experimLntal work on it in October of that year, thusantedating Hutin and Leblanc. Upon the adjudication of this contest in favor of Pupinon the main issues, patents on some of their claims were also allowed Stone and the Frenchinventors. 428 BELL SYSTEM TECHMCAL JOLRXAL (ommunication have l)rouglil forlh more useful applications of th
. The Bell System technical journal . 24) showsthat Pupin claimed to have conceived the idea of using electrical resonance in multiplextelegraph)- in the summer of 1890, following a careful stud>- he had made of the investiga-tions of Hertz, and to have begun experimLntal work on it in October of that year, thusantedating Hutin and Leblanc. Upon the adjudication of this contest in favor of Pupinon the main issues, patents on some of their claims were also allowed Stone and the Frenchinventors. 428 BELL SYSTEM TECHMCAL JOLRXAL (ommunication have l)rouglil forlh more useful applications of the j)rincipleof electrical resonance than the examples cited above. But let us now turnto radio. Here the application of resonance is elemental and not so in the beginning, however. When Marconi brought his em-bryonic outfit to England in 1896 and demonstrated his best accomplish-ments over the next three or four years, the problem of selectivity wasnon-existent. Further, the type of detector then available, the Branly. U u
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
