Scuba diving

Scuba diving

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

Industry: Sports

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Scuba diving

Bottom time

Sports; Scuba diving

The time between descending below the surface to the beginning of ascent.

Capillary depth gauge

Sports; Scuba diving

Made up of a small tube. Uses Boyle's law to determine depth.

Carbon monoxide (CO)

Sports; Scuba diving

An odorless, tasteless, highly poisonous gas given off by incomplete combustion of hydrocarbon fuels.

Barotraumas

Sports; Scuba diving

Any disease or injury due to unequal pressures between a space inside the body and the ambient pressure, or between two spaces within the body; examples include arterial gas embolism and ...

Backscatter

Sports; Scuba diving

When suspended particles in the water, such as sand, are illuminated by light from a flash, they reflect the light back to the lens. The particles appear as specks or snow in the photo.

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 ...