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Snorkeling (British and Commonwealth English spelling: snorkelling) is the practice of swimming face down on or through a body of water while breathing the ambient air through a shaped tube called a snorkel, usually with swimming goggles or a diving mask, and swimfins.
A snorkel is used to allow the user to breathe atmospheric air when their face is immersed in water while swimming or floating at the surface. [1] To work effectively, the snorkel must allow the user to inhale and exhale comfortably over an extended period, and provide a sufficient volume of air with appropriate oxygen and carbon dioxide content to maintain a sufficient and comfortable ...
In the CMAS International Diver Training Standards and Procedures Manual, CMAS states that "A one-star diver shall be deemed to have sufficient knowledge, skill and experience to procure air, equipment, and other diving services and to plan, conduct, and log open-water dives that do not require mandatory in-water decompression stops, without the supervision of a CMAS instructor or CMAS dive ...
Snorkel (swimming), a breathing tube for swimmers or divers and its use in the activity of snorkeling; Submarine snorkel, for submersible ships/boats; Vehicle snorkel, for insignificantly buoyant submersible vehicles; An aerial platform for fire engines; Sheaffer Snorkel fountain pen, a fountain pen piston filling scheme
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.
Hope Root died on 3 December 1953 off the coast of Miami Beach trying set a deep diving record of 125 m (410 ft) with an Aqua-Lung; he passed 152 m (500 ft) and was not seen again. [ 81 ] Archie Forfar and Ann Gunderson died on 11 December 1971 off the coast of Andros Island , while attempting to dive to 146 m (479 ft), which would have been ...