A man demonstrating telephone communication process and a motion picture director demonstrating wave motion in the U.S.
United States USA Date:1918 Duration:3 min 39 sec Sound:NO SOUND
Telecommunication process demonstration in the United States. A man standing beside an equipment at a telecommunication center. A diagram showing telephone communication. The man demonstrating the processes in telephone communication. The man wears headphones and holds a pointer in his hand. The man demonstrates by pointing to the various processes in the telecommunication diagram. Motion picture crew members atop a building. Several buildings in the background. One of the men wearing a colonial costume. Crew director demonstrates wave motion by dropping an object into water in a tub. View of the crew director standing atop the building.
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