Messengers for mankind /
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Libro |
| Lenguaje: | English |
| Publicado: |
London :
Hutchinson,
[1940?].
|
| Colección: | Hutchinson's illustrated library of modern knowledge ;
no. 5 Conquest of space and time |
| Materias: |
Tabla de Contenidos:
- Signals and codes
- General post
- Faraday
- Electric telegraphy
- The telephone
- Wireless
- Cables and cable laying
- Transmission of pictures
- Broadcasting.