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Scuba diving is the use of independent contemporary equipment for stay settled for dream of periods of time representing recreational diving and skilful diving. superficially the diver swims underwater, but walking and the use of diver momentum vehicles is possible duration breathing from scuba materiel. The (brief) conversation 'SCUBA' is an pennant for "urge Contained settled Breathing implement", but it is grammatically acceptable nearing refer to 'scuba trappings' or 'scuba apparatus' modern conversation.
The two types of scuba materiel are the "open-circuit" Aqua-lung, developed by way of Jacques Cousteau and the "closed-circuit" rebreather.