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  2. Swimming machine - Wikipedia

    en.wikipedia.org/wiki/Swimming_machine

    A swimming machine, also known as a resistance swimming apparatus, is a self-contained device powered by a pump, designed to facilitate stationary swimming for athletes or recreational users. This can be achieved by either propelling water past the swimmer or providing support for the swimmer, either within a water environment or on dry land. [1]

  3. Snorkel (swimming) - Wikipedia

    en.wikipedia.org/wiki/Snorkel_(swimming)

    A snorkel is used to allow the user to breathe atmospheric air when their face is immersed in water while swimming or floating at the surface. [1] To work effectively, the snorkel must allow the user to inhale and exhale comfortably over an extended period, and provide a sufficient volume of air with appropriate oxygen and carbon dioxide content to maintain a sufficient and comfortable ...

  4. PowerSwim - Wikipedia

    en.wikipedia.org/wiki/PowerSwim

    Aqueon is or was a similar device to PowerSwim.California Institute of Technology graduate Calvin "Cal" Gongwer began work on improvements to human propulsion through water in the 1950s and established Innerspace Corporation, an aquatic propulsion company which specialized in submersible thrusters at the time.

  5. Timeline of diving technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_diving_technology

    The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.

  6. Hexagonal water - Wikipedia

    en.wikipedia.org/wiki/Hexagonal_water

    This is an accepted version of this page This is the latest accepted revision, reviewed on 8 September 2024. Term in marketing scam For the water surface phenomenon, see Exclusion zone (physics). For the six-sided shape freezing water takes in nature, see snowflake. Hexagonal water, also known as gel water, structured water, cluster water, H3O2 or H 3 O 2 is a term used in a marketing scam ...

  7. Inflatable armbands - Wikipedia

    en.wikipedia.org/wiki/Inflatable_armbands

    A child swimming with inflatable armbands. Inflatable armbands, usually referred to as simply armbands, water wings, swimmies, or floaties, are swim aids designed to help a wearer float in water and learn to swim. [1] Inflatable armbands are typically cylindrical, inflatable plastic bands that are inflated and worn on the upper arms.

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