Scuba diving

Scuba diving

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

Industry: Sports

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Scuba diving

Coral

Sports; Scuba diving

Invertebrates that secrete an internal, hard skeleton structure composed of calcium carbonate, which is absorbed from the surrounding water.

Skin diving

Sports; Scuba diving

Another name for breath-hold diving; diving without the use of a breathing equipment (may include a snorkel).

Buoyancy

Sports; Scuba diving

The upward force exerted on an object in liquid, whether the object sinks or floats. Objects that float are positively buoyant, those that sink are negatively buoyant and those that stay where ...

A horizontal movement of water; currents can be classified as tidal and nontidal; tidal currents are caused by forces of the sun and moon and are manifested in the general rise and fall occurring at ...

Feet of sea water (FSW)

Sports; Scuba diving

Measurement of depth in sea water used to indicate either an actual depth, or just a pressure equal to that depth (e.g., in an hyperbaric chamber).

Narcosis

Sports; Scuba diving

Depressed mental state, anywhere from confusion or drowsiness to coma.

Cavern diving

Sports; Scuba diving

Requiring specialised training, this involves diving into an overhead environment including caves, abandoned mines or quarries and natural springs or sinkholes; differs from Cave Diving in that the ...