Scuba diving

Scuba diving

Underwater diving in which the diver uses scuba gears to breathe underwater.

Industry: Sports

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Scuba diving

Ambient light

Sports; Scuba diving

It is the available sunlight underwater used as a source of illumination.

Closed circuit scuba

Sports; Scuba diving

Apparatus designed to allow divers to re-breath exhaled air after removal of CO2 and addition of supplemental 02. In contrast to "Open Circuit", closed circuit scuba is noiseless and produces no ...

Asthma

Sports; Scuba diving

A common condition manifested by narrowing of air passages within the lungs. One reason for the narrowing is excess mucous in the airway.

Submersible pressure gauge

Sports; Scuba diving

Gauge to monitor air supply during the course of a dive.

Octopus regulator

Sports; Scuba diving

An alternate second stage air source used by a diver's buddy in an out-of-air situation, or reserve 2nd stage regulator.

Live aboard

Sports; Scuba diving

A dive boat with sleeping and eating accommodations. Commercial live aboard boats are usually between 50 and 130 feet long, and can carry from 10 to 30 divers for up to a week or more.

An unbalanced first stage regulator is affected by tank pressure. The tank pressure works to force the piston in the first stage open. As the gas in the tank diminishes, it is easier for the piston ...