Unsichtbare Brücken
Unsichtbare Brücken
orologio Unsichtbare Brücken en StreamingCommunity. In the broadcasting center of a radio station, visitors are informed in a kind of educational course about how "electric waves" are generated and how they are converted into sounds that can then be heard on the radio.
- Genere: Documentario
- Nazione: Germany
- Direttore: Hans Fritz Wilhelm
- Cast: Rolf Gert, Alfred Stratmann,
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