TALKING AROUND THE GLOBE.
The article reports on the communication breakthrough in the U.S. The wireless telephone mechanism invented by the Americans does transmission on wavelengths about one-half of that employed on long distance wireless telegraphy. The device was tested by Bell Telephone System engineers by transmitting...
| Publicado en: | Journal of Education Vol. 82; no. 16; p. 422 |
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| Formato: | Artículo |
| Publicado: |
Sage Publications Inc.
11/4/1915
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |