The public language of scientific inquiry sat alongside a practical imperial and commercial interest in seabed conditions. Long submarine cables required planners to understand ocean depths, bottom contours, and the amount of cable a route would consume. Challenger's measurements could advance fundamental science while reducing uncertainty for a rapidly expanding communications network. The motives overlap in this account: genuine scientific work could also produce useful strategic knowledge.
Notable Point · 5:33-7:35
Science, surveying, and submarine-cable knowledge
The expedition's deep-sea research also produced the seabed knowledge needed for long submarine cables.