Engraving of telegraph cable manufacture, 1857.

Engraving of telegraph cable manufacture, 1857.

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Credit: SCIENCE PHOTO LIBRARY

Caption: Telegraph cable manufacture. Engraving of underwater telegraph cables being manufactured in the 19th century. These cables are being coated with gutta-percha, a natural, rubber-like subst- ance which has electrical insulation properties. These cables were used in an attempt to lay a telegraph link under the Atlantic Ocean between Europe and America. The attempt failed when the cable snapped. A later attempt was successful in 1866.

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Keywords: 19th cent, 19th cent., atlantic, cable, communication, communications, gutta-percha, historical, history of science, technology, telegraph, telegraph cable, transatlantic telegraph cable, underwater, use

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