Scuba diving

Scuba diving

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

Industry: Sports

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Scuba diving

safety stop

Sports; Scuba diving

On ascent from a dive, a specified time spent at a specified depth, for purposes of nitrogen off gassing. By definition it is not a mandatory for a safe ascent from a dive.

oxygen therapy

Sports; Scuba diving

Administration of any gas, for medical purposes, that contains more than 21% oxygen.

absolute

Sports; Scuba diving

Pressure calculated by using a vacuum as the zero point and including the gauge and atmospheric pressure in the calculation.

gas analysis

Sports; Scuba diving

A procedure whereby the fractions of gas in a breathing mixture are determined. Generally it is used to determine the fraction of oxygen to within 1 %, to control the effects of Oxygen toxicity. ...

In general terms, the zenith is the direction pointing directly "above" a particular location; that is, it is one of two vertical directions at the location, orthogonal to a horizontal flat surface ...

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 ...

current

Sports; Scuba diving

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 ...