Aus Der Geschichte Der Nachrichtentechnik: 24. Jahresfeier Am 22. Mai 1974

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After introductory remarks on the significance of language, the develop- ment of writing and the terminology of communications engineering, two examples - telegraph and telephony - are used to demonstrate that engin- eering developments can be understood only in conjunction with progress in the natural sciences on the one hand and the development or recognition of a demand for new engineering solutions on the other. Resume Apres des explications d'introduction, traitant de l'importance de la langue, de l'evolution de l'ecriture et de la terminologie de la technique des commu- nications, il est demontre a l'aide de deux exemples - la telegraphie et la telephonie -, que les developpements techniques ne peuvent hre compris qu'en rapport avec les progres des connaissances des sciences naturelles d'une part, et avec l'apparition ou l'identification d'un beso: n pour de nouvelles solutions techniques d'autre part. Vero. ffentlichungen der Arbeitsgemeinschafi fur Forschung des Landes Nordrhein-WestJalen jetzt der Rheinisch-WestJiilischen Akademie der Wissenschafien Neuerscheinungen 1970 his 1974 Vortriige N NATUR-, INGENIEUR-UND HeftNr. WIRTSCHAFTSWISSENSCHAFTEN 206 Franz Broich, Marl-Huls Probleme der Petrolchemie 207 Franz Grosse-Brockhoff. Elektrotherapie des Herzens DUsseldorf (Eroffnungsfeier am 6.