Group of soldiers demonstrate signalling devices using telescope, heliograph, semaphore, field telephone.
Group of soldiers demonstrate signalling devices using telescope, heliograph, semaphore, field telephone. Meant to show evolution of signal devices.
Location of events unknown.
Soldiers hurrying over a hill. Two soldiers setting up a portable telegraph. Another sets up a tripod. Pan to right: man attaches telescope to tripod while three other men are busy with their own methods. One sits down on ground with a pad of paper (maybe he is representing codes or something). Another soldier has a flag for signalling. Another is setting up a bright light on another tripod; while a soldier with a notebook reads out to him what to signal.
The flag man is waving his flag. Pan to telescope man down on ground next to the other man scribbling madly into a notebook. Pan to another soldier operating telegraph; tapping out something in Morse Code.
World War One. Military communications technology. Science; message; secret; information.