underwater fittings

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• Underwater videography — is the branch of underwater photography concerned with capturing underwater moving images either as a recreational diving or commercial documentary or movie making activity.Limitations of Underwater VideoThe primary difficulty in underwater… …   Wikipedia

• HMS Matabele (F26) — HMS Matabele was a Tribal class destroyer of the Royal Navy that saw service in World War II, being sunk by a U boat on 17 January, 1942. She has been the only ship of the Royal Navy to bear the name Matabele , which in common with the other… …   Wikipedia

• Diving cylinder — Diving cylinders to be filled at a diving air compressor station …   Wikipedia

• Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …   Wikipedia

• Diving bell — A diving bell is a rigid chamber used to transport divers to depth in the ocean. The most common types are the wet bell and the closed bell. The wet bell is a cable suspended chamber, open at the bottom like a moon pool structure, that is lowered …   Wikipedia

• Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …   Wikipedia

• Mary Rose — For later ships with the same name, see HMS Mary Rose. For the play by J.M. Barrie, see Mary Rose (play). The remnants of the Mary Rose undergoing conservation in Portsmouth …   Wikipedia

• Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …   Wikipedia

• List of United States Navy ratings — From left to right: a Special Warfare Operator 1st Class and a Boatswain s Mate 2nd Class. United States Navy ratings are general occupations that consist of specific skills and abilities. Each naval rating has its own specialty badge, which is… …   Wikipedia

• Lighting — Not to be confused with lightning. For other uses, see lighting (disambiguation). Low intensity lighting and haze in a concert hall allows laser effects to be visible …   Wikipedia

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium