Unsichtbare Brücken(1932)
40 min · Documentary · Directed by Hans Fritz Wilhelm
Released
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.
Where to watch
Not available to stream, rent, or buy in the US yet.
US release dates
No US dates announced yet.