Under Water Submarine Cable

Year Published: 1958

Complete Record: Tracing the history of under water telecommunication cable. Explaining how to set the cable on the bottom of sea. There are shots that people on the ship work on transfering the cable into the sea. In the laboratory, researchers investigate and improve the cable to be more high quality one. Explaining how to make the cable. At first, it’s just a iron string, and the strings are twisted to became thick cable. After that, the cable goes through many test.

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