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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 ...
Surface-supplied diving where the breathing air is supplied to the diver by a simple hose. The diver usually breathes through a mouth held demand valve. air top air top-up. see: Gas blending for scuba diving#Air top-up. 1. Completing a planned breathing gas mix by topping up the cylinder with compressed air to a calculated pressure. [12] 2.
Traditionally and even as recently as the 1960s, ama dived wearing only a loincloth, but in the 20th century, the divers adopted an all-white sheer diving uniform in order to be more presentable while diving. [3] [4] Even in modern times, ama dive without scuba gear or air tanks, making them a traditional sort of freediver.
See: Doing It Right (scuba diving), and Human factors in diving equipment design#Hose routing. A scuba configuration where the primary demand valve has a long hose which is routed under the right arm, usually tucked under a light battery canister on the waist belt of the harness, and around behind the neck to reach the mouth from the right hand ...
See: Underwater diving#Diving environment. Recreational scuba diving along the face of a near vertical cliff wall, particularly if the bottom is below the range of the diver's equipment and certification. This requires good buoyancy control. [44] washout See outgassing [45] water capacity. See: Gas cylinder. Of a cylinder: The internal volume.
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In 1957, Parry co-founded the International Underwater Film Festival that ran for 17 years. In 1960, she became the first elected woman president of the U/W Photographic Society. She wrote and published a book with the late Albert Tillman, Scuba America Vol. I, the Human History of Sport Diving in America. The book is now also available as an ...
Recreational diving or sport diving is a type of diving that uses scuba equipment for the purpose of leisure and enjoyment. In some diving circles, the term "recreational diving" is used in contradistinction to " technical diving ", a more demanding aspect of the sport which requires greater levels of training, experience and equipment.