Transatlantic telegraph. William Thomson's (Lord Kelvin 1824-1907) receiving apparatus used at Brest, including his mirror galvanometer (left), an instrument for measuring small electric currents Wood engraving 1877
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Details
Creative#:
TOP09101202
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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NO
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NO
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No
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