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2. Buoyancy compensator (diving) - Wikipedia

   en.wikipedia.org/wiki/Buoyancy_compensator_(diving)

   The buoyancy compensator is used by ambient pressure divers using underwater breathing apparatus to adjust buoyancy underwater or at the surface within the range of slightly negative to slightly positive, to allow neutral buoyancy to be maintained throughout the depth range of the planned dive, and to compensate for changes in weight due to breathing gas consumption during the dive.

3. Diving weighting system - Wikipedia

   en.wikipedia.org/wiki/Diving_weighting_system

   Weight belts are the most common weighting system currently in use for recreational diving. [17] Weight belts are often made of tough nylon webbing, but other materials such as rubber can be used. Weight belts for scuba and breathhold diving are generally fitted with a quick release buckle to allow the dumping of weight rapidly in an emergency. [7]

4. Personal flotation device - Wikipedia

   en.wikipedia.org/wiki/Personal_flotation_device

   Personal flotation devices being worn on a navy transport . A personal flotation device (PFD; also referred to as a life jacket, life preserver, life belt, Mae West, life vest, life saver, cork jacket, buoyancy aid or flotation suit) is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water.

5. These Flippers Will Help you Swim Like a Dolphin

   www.aol.com/lifestyle/8-best-fins-diving...

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6. Neutral buoyancy - Wikipedia

   en.wikipedia.org/wiki/Neutral_buoyancy

   A fish's swim bladder controls buoyancy by adjusting the amount of gas in the swim bladder, allowing it to achieve neutral buoyancy at different depths. When a fish's overall density becomes higher or lower than the surrounding water due to volume change of the swim bladder following ascent or descent, it can correct this difference over time ...

7. Buoyancy aid - Wikipedia

   en.wikipedia.org/wiki/Buoyancy_aid

   Buoyancy aids are a specialist form of personal flotation device (PFD) used most commonly by kayakers, canoeists, people practicing rafting, and dinghy sailors. They are designed as a flotation aid, rather than merely a life-saving device and have several key differences to other PFD's and lifejackets. Some buoyancy aids may not provide the ...