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Guild Wars 2 is a free-to-play, [2] massively multiplayer online role-playing game developed by ArenaNet and published by NCSoft.Set in the fantasy world of Tyria, the core game follows the re-emergence of Destiny's Edge, a disbanded guild dedicated to fighting Elder Dragons, colossal Lovecraftian-esque entities that have seized control of Tyria in the time since the original Guild Wars (2005 ...
In 1829, the Deane brothers sailed from Whitstable for trials of their new underwater apparatus, establishing the diving industry in the town. A cannonball that John Deane recovered from the wreck of the Mary Rose. In 1830 John and his diving partner, George Bell, salvaged the cannons from the wreck of the Guernsey Lily.
The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.
Solo and technical divers may also carry a backup mask, dive computer, decompression gas and other equipment based on risk assessment for the planned dive. [18] Some backup equipment may be spread amongst a diving team, when instant availability is nor critical, this practice is termed team redundancy .
A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including scuba divers, free-divers, and snorkelers, to see clearly underwater. [ 1 ] [ 2 ] Surface supplied divers usually use a full face mask or diving helmet , but in some systems the half mask may be used. [ 2 ]
This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving can be described as a human activity – intentional, purposive, conscious and subjectively meaningful sequence of ...
Snorkels are attached to sockets on the top or the sides of the mask. The skirt of the diving mask attached to the snorkel is made of rubber, a synthetic elastomer, or latterly a silicone elastomer. First-generation snorkel masks have a single oval, round or rounded triangular lens retained in a groove in the skirt of the mask by a metal clamp.
Draeger twin hose two stage demand regulator. The most striking and well recognized example of vintage scuba gear is the twin-hose or double hose regulator, a popular style of regulator in the early years of scuba diving, since Jacques-Yves Cousteau and Emile Gagnan pioneered the first such design, the C45 Scaphandre Autonome, which was marketed in the USA (along with a tank and harness) as ...