Lord Kelvin's transatlantic telegraph, 1877. Artist: John Wright Oakes

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Lord Kelvin's transatlantic telegraph, 1877. William Thomson's (Lord Kelvin) (1824-1907) receiving apparatus used at Brest, France, including his mirror galvanometer (left), an instrument for measuring small electric currents.

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Size: 3606px × 2906px
Location:
Photo credit: © Oxford Science Archive/Heritage Images / Alamy / Afripics
License: Licensed
Model Released: No

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