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2. History of scuba diving - Wikipedia

   en.wikipedia.org/wiki/History_of_scuba_diving

   Scuba diver of the late 1960s. The history of scuba diving is closely linked with the history of the equipment.By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon ...

3. 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.

4. 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.

5. Vintage scuba - Wikipedia

   en.wikipedia.org/wiki/Vintage_scuba

   Draeger twin hose two stage demand regulator. The most striking and well recognized example of vintage scuba gear is the twin-hose or double hose regulator, a popular style of regulator in the early years of scuba diving, since Jacques-Yves Cousteau and Emile Gagnan pioneered the first such design, the C45 Scaphandre Autonome, which was marketed in the USA (along with a tank and harness) as ...

6. Porpoise (scuba gear) - Wikipedia

   en.wikipedia.org/wiki/Porpoise_(scuba_gear)

   An example of the world's first commercially available, single hose SCUBA unit designed and manufactured by Ted Eldred in 1952. Porpoise is a tradename for scuba developed by Ted Eldred in Australia and made there from the late 1940s onwards. The first Porpoise was a closed circuit oxygen rebreather, and the following models were all single ...

7. History of underwater diving - Wikipedia

   en.wikipedia.org/wiki/History_of_underwater_diving

   The first commercially practical closed-circuit scuba was designed and built by the diving engineer Henry Fleuss in 1878, while working for Siebe Gorman in London. [ 14 ] [ 73 ] His apparatus consisted of a rubber mask connected by a tube to a bag, with (estimated) 50–60% O 2 supplied from a copper pressure tank and CO 2 chemically absorbed ...