In underwater diving, a downline is a piece of substantial cordage running from a point at the surface to the underwater workplace, and kept under some...

Open water diving implies that if a problem arises, the diver can directly ascend vertically to the atmosphere to breathe air. Penetration diving—involving...

underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be...

Surface-supplied diving equipment (SSDE) is the equipment required for surface-supplied diving. The essential aspect of surface-supplied diving is that breathing...

jackstay. A downline used for open ocean diving is much the same as a shotline, but does not reach all the way to the bottom. An open-ocean downline is weighted...

support and guide equipment for transport between two points. A downline is a diving jackstay from an anchor point at or above the surface to the underwater...

The underwater diving environment, or just diving environment is the natural or artificial surroundings in which a dive is done. It is usually underwater...

A diving shot line, shot line, or diving shot, a type of downline or descending line (US Navy), is an item of diving equipment consisting of a ballast...

diving) (DIR) – Technical diving safety philosophy Donald, Kenneth William – British expert on underwater and exercise physiology. Downline (diving) –...

Diving support equipment is the equipment used to facilitate a diving operation. It is either not taken into the water during the dive, such as the gas...

underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be...

underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be...

underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be...

Sea, four divers were in a diving chamber system on the rig's deck that was connected by a trunk (a short passage) to a diving bell. The divers were Edwin...

Rebreather diving is underwater diving using diving rebreathers, a class of underwater breathing apparatus which recirculate the breathing gas exhaled...

Commercial diving may be considered an application of professional diving where the diver engages in underwater work for industrial, construction, engineering...

Diving equipment, or underwater diving equipment, is equipment used by underwater divers to make diving activities possible, easier, safer and/or more...

Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and...

safety of breathable atmosphere at the surface. Cave diving, wreck diving, ice diving and diving inside or under other natural or artificial underwater...

Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either...

The Professional Association of Diving Instructors (PADI) is a recreational diving membership and diver training organization founded in 1966 by John Cronin...

diver may dive on breath-hold (freediving) or use breathing apparatus for scuba diving or surface-supplied diving, and the saturation diving technique...

Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly...

Freediving, free-diving, free diving, breath-hold diving, or skin diving, is a mode of underwater diving that relies on breath-holding until resurfacing...

Deep diving is underwater diving to a depth beyond the norm accepted by the associated community. In some cases this is a prescribed limit established...

A diving team is a group of people who work together to conduct a diving operation. A characteristic of professional diving is the specification for minimum...

underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be...

Sponge diving is underwater diving to collect soft natural sponges for human use. Most sponges are too rough for general use due to their structural spicules...

Technical diving (also referred to as tec diving or tech diving) is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional...

Professional diving is underwater diving where the divers are paid for their work. Occupational diving has a similar meaning and applications. The procedures...