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Professional diving (commercial diving, diving for research purposes, or for financial gain) involves working underwater. Public safety diving is the underwater work done by law enforcement, fire rescue, and underwater search and recovery dive teams. Military diving includes combat diving, clearance diving and ships husbandry.
A scuba diving emergency is an incident while scuba diving, in which there is a high probability of death or severe injury if the problem is not resolved quickly. [149] A diving emergency may be related to life-support, [1] decompression stress and barotraume, [1] incapacitation or inability to cope, [150] or an acute medical problem. [118]
Underwater diving can be described as all of the following: A human activity – intentional, purposive, conscious and subjectively meaningful sequence of actions. . Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to the order of a day at a ...
A scuba set is characterized by full independence from the surface during use, by providing breathing gas carried by the diver. Early attempts to reach this autonomy from the surface were made in the 18th century by the Englishman John Lethbridge, who invented and successfully built his own underwater diving machine in 1715. The air inside the ...
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. Surface supplied divers usually use a full face mask or diving helmet , but in some systems the half mask may be used.
Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to order of a day at a time, either exposed to the ambient pressure or isolated by a pressure resistant suit, to interact with the underwater ...
Inspection of underwater structures, installations, and sites is a common diving activity, applicable to planning, installation, and maintenance phases, but the required skills are often specific to the application.
This category covers diving as in underwater diving, the human activity of descending below the water's surface to interact with the environment, and matters directly associated with this activity. See Category:Diving (sport) for entering the water from a height.