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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 by an authority, while in others it is associated with a level of certification or training, and it may vary depending on whether the diving is recreational, technical or commercial. Nitrogen narcosis becomes a hazard below 30 metres (98 ft) and hypoxic breathing gas is required below 60 metres (200 ft) to lessen the risk of oxygen toxicity.
Wreck diving is recreational diving where the wreckage of ships, aircraft and other artificial structures are explored. The term is used mainly by recreational and technical divers. Professional divers, when diving on a shipwreck, generally refer to the specific task, such as salvage work, accident investigation or archaeological survey. Although most wreck dive sites are at shipwrecks, there is an increasing trend to scuttle retired ships to create artificial reef sites. Diving to crashed aircraft can also be considered wreck diving. The recreation of wreck diving makes no distinction as to how the vessel ended up on the bottom.
The Blue Hole is a diving location on the southeast Sinai, a few kilometres north of Dahab, Egypt on the coast of the Red Sea.
The third USS Perry (DD-340/DMS-17) was a Clemson-class destroyer in the United States Navy following World War I. She was one of eight ships named for Oliver Hazard Perry.
Richie Kohler is an American technical wreck diver and shipwreck historian who has been diving and exploring shipwrecks since 1980. Together with John Chatterton, Kohler was one of the co-hosts of the television series Deep Sea Detectives on the History Channel and is also a consultant for the film and television industry on shipwreck and diving projects.
Keith Jessop was a British salvage diver and successful marine treasure hunter.
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 1.1 MPa (11 atm), the equivalent of 100 m (330 ft). The typical diver's watch will have a water resistance of around 200 to 300 m, though modern technology allows the creation of diving watches that can go much deeper. A true contemporary diver's watch is in accordance with the ISO 6425 standard, which defines test standards and features for watches suitable for diving with underwater breathing apparatus in depths of 100 m (330 ft) or more. Watches conforming to ISO 6425 are marked with the word DIVER'S to distinguish ISO 6425 conformant diving watches from watches that might not be suitable for actual scuba diving.
John Chatterton is an American wreck diver. Together with Richie Kohler, he was one of the co-hosts for the History Channel’s Deep Sea Detectives, for 57 episodes of the series. He is also a consultant to the film and television industries and has worked with 20th Century Fox, Paramount Pictures, and CBS.
Gary Gentile is an American author and pioneering technical diver.
Walter William Nagle Jr "Bill" Nagle (1952–1993) was a pioneering American wreck diver.
"Captain" Billy Deans is a pioneering wreck and technical diver. "Captain" is the nickname which is widely applied to Billy Deans, however he is a US Coast Guard-rated captain up to 100 tons.
Michael C. Barnette is an American diver, author, photographer and founder of the Association of Underwater Explorers.
John D. Craig (1903–1997) was an American businessman, writer, soldier, diver, Hollywood stunt man, film producer, and television host. He worked in the commercial surface-supplied diving industry from the 1930s on, and filmed aerial combat over Europe during World War II. He is best known for using film and television to show the United States public the beauties and dangers of Earth's underwater worlds.
Leigh Bishop is an explorer and deep sea diver known for his deep shipwreck exploration and still underwater photography.
The Johnson Sea Link accident was a June 1973 incident that claimed the lives of two divers. During a seemingly routine dive off Key West, the submersible Johnson Sea Link was trapped for over 24 hours in the wreckage of the destroyer USS Fred T. Berry, which had been sunk to create an artificial reef. Although the submersible was eventually recovered by the rescue vessel A.B. Wood II, two of the four occupants died of carbon dioxide poisoning: 31-year-old Edwin Clayton Link and 51-year-old diver Albert Dennison Stover. The submersible's pilot, Archibald "Jock" Menzies, and ichthyologist Robert Meek survived. Over the next two years, Edwin Link designed an unmanned Cabled Observation and Rescue Device (CORD) that could free a trapped submersible.
To prevent or minimize decompression sickness, divers must properly plan and monitor decompression. Divers follow a decompression model to safely allow the release of excess inert gases dissolved in their body tissues, which accommodated as a result of breathing at ambient pressures greater than surface atmospheric pressure. Decompression models take into account variables such as depth and time of dive, breathing gasses, altitude, and equipment to develop appropriate procedures for safe ascent.
Deep Sea Diver is a indie rock band based in Seattle, Washington. The band consists of Jessica Dobson, Peter Mansen (drums), Elliot Jackson and Garrett Gue (bass).
The following index is provided as an overview of and topical guide to underwater divers:
This is a list of underwater divers whose exploits have made them notable. Underwater divers are people who take part in underwater diving activities – Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to order of a day at a time, either exposed to the ambient pressure or isolated by a pressure resistant suit, to interact with the underwater environment for pleasure, competitive sport, or as a means to reach a work site for profit or in the pursuit of knowledge, and may use no equipment at all, or a wide range of equipment which may include breathing apparatus, environmental protective clothing, aids to vision, communication, propulsion, maneuverability, buoyancy and safety equipment, and tools for the task at hand.
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 panel and compressor, or is not integral to the actual diving, being there to make the dive easier or safer, such as a surface decompression chamber. Some equipment, like a diving stage, is not easily categorised as diving or support equipment, and may be considered as either.
References
- ↑ Catching Up With 'Deep Sea Detective' Richie Kohler, California Diver, 3 August 2018, retrieved 29 June 2024
