Underwater work is work done underwater, generally by divers during diving operations, but includes work done underwater by remotely operated vehicles...

underwater diving environment, or just diving environment is the natural or artificial surroundings in which a dive is done. It is usually underwater...

Underwater cutting and welding are metalworking techniques used by underwater divers in underwater construction, marine salvage and clearance diving applications...

Underwater diving, as a human activity, is the practice of descending below the water's surface to interact with the environment. It is also often referred...

used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving...

used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving...

used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving...

The APS underwater assault rifle (APS stands for Avtomat Podvodny Spetsialnyy (Автомат Подводный Специальный) or "Special Underwater Assault Rifle") is...

welding is the process of extreme welding at elevated pressures, normally underwater. Hyperbaric welding can either take place wet in the water itself or dry...

the Glossary of underwater diving terminology for definitions of technical terms, jargon, diver slang and acronyms used in underwater diving See the Outline...

diving involved. Some underwater work can be done by divers, but they are limited by depth and site conditions, and it is hazardous work, with expensive risk...

used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving...

used in underwater diving. The definitions listed are in the context of underwater diving. There may be other meanings in other contexts. Underwater diving...

Diving equipment, or underwater diving equipment, is equipment used by underwater divers to make diving activities possible, easier, safer and/or more...

ammunition does not work well underwater, underwater firearms commonly fire flechettes instead of standard bullets. The barrels of underwater pistols are typically...

carburetor at the intake. Hydraulic power may be used for chainsaws for underwater use. To allow use in any orientation, modern gas chainsaws use a diaphragm...

An underwater survey is a survey performed in an underwater environment or conducted remotely on an underwater object or region. Survey can have several...

operated underwater vehicle (ROUV)[citation needed] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation...

The Underwater Demolition Team (UDT), or frogmen, were amphibious units created by the United States Navy during World War II with specialized non-tactical...

Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and...

Underwater rugby (UWR) is an underwater team sport. During a match two teams try to score a negatively buoyant ball (filled with saltwater) into the opponents’...

Underwater hockey (UWH), (also known as Octopush in the United Kingdom) is a globally played limited-contact sport in which two teams compete to manoeuvre...

Underwater demolition is the deliberate destruction or neutralization of man-made or natural underwater obstacles, both for military and civilian purposes...

amphibious range-finder camera for 35mm film. Cameras made for dry work can also work underwater, protected by add-on housings, which are made for point and...

accessible parts of the underwater environment. These include research, underwater diving for work or recreation, and underwater warfare with submarines...

be considered as either. Equipment required only to do the planned underwater work is not usually considered diving or support equipment. Surface-supplied...

Underwater acoustic communication is a technique of sending and receiving messages in water. There are several ways of employing such communication but...

Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24-hour...

underwater vehicle – A tethered underwater mobile device operated by a remote crew 8A4-class ROUV – Chinese work class remotely operated underwater vehicle...

Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that...