Abstract
AbstractDiving is limited to a narrow range of depth and a limited radius of action, whereas submarines, submersible craft and bathyscaphes give men either a wider range of activity or, at depths where divers cannot operate, protection from the physical and physiological hazards which would otherwise prevent exploration of the deep oceans. The various factors which limit or inhibit the penetration of divers to the greatest depths arise from being air-breathing mammals adapted to living at atmospheric pressure. Each new solution brings new problems, but voice distortion and excessive loss of body heat are current problems nearing solution.The analysis of present trends is presented in the context of the author’s definition of diving as ‘the use of engineering and physiological knowledge to carry out underwater tasks’.
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