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2. Buoyancy compensator (diving) - Wikipedia

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

   A buoyancy compensator (BC), also called a buoyancy control device (BCD), stabilizer, stabilisor, stab jacket, wing or adjustable buoyancy life jacket (ABLJ), depending on design, is a type of diving equipment which is worn by divers to establish neutral buoyancy underwater and positive buoyancy at the surface, when needed.

3. Diving weighting system - Wikipedia

   en.wikipedia.org/wiki/Diving_weighting_system

   A further requirement for scuba diving in most circumstances, is the ability to achieve significant positive buoyancy at any point of a dive. [3] [5] [6] When at the surface, this is a standard procedure to enhance safety and convenience, and underwater it is generally a response to an emergency.

4. Backplate and wing - Wikipedia

   en.wikipedia.org/wiki/Backplate_and_wing

   The predominant type of BCD currently used in recreational diving is the jacket style BCD. The backplate and wing differs from the jacket style primarily in the way that the functions required of a BCD (attachment to diver, buoyancy control and attachment to cylinder(s)) are performed by distinct components, rather than a single unit.

5. Aqua-Lung - Wikipedia

   en.wikipedia.org/wiki/Aqua-Lung

   The invention revolutionised autonomous underwater diving by providing a compact, reliable system capable of a greater depth range and endurance than its precursors, and was a major factor influencing the development of recreational scuba diving after WWII. The twin-hose Aqua-Lung demand regulator is the foundation of all modern scuba regulators.

6. Fenzy - Wikipedia

   en.wikipedia.org/wiki/Fenzy

   Fenzy is a scuba diving and industrial breathing equipment design and manufacturing firm. It started in or before 1920 in France. Finally Honeywell bought them out.. In 1961 the company's founder and owner, Maurice Fenzy, invented a divers' adjustable buoyancy life jacket (ABLJ) (European terminology) or buoyancy compensator (BC) (North American terminology) [1] that became so well known that ...

7. What will happen to Social Security under Trump’s tax plan?

   www.aol.com/finance/happen-social-security-under...

   Trump’s plan to eliminate taxes on Social Security benefits would help current beneficiaries, but future recipients may be hurt by the move.