Aqua-Lung

(from the article `Cousteau, Jacques-Yves`) ...the founder of the Underseas Research Group at Toulon and of the French Office of Underseas Research at Marseille, Fr. (renamed the Centre of ... swimming done underwater either with a minimum of equipment, as in skin diving (free diving) or with a scuba (abbreviation of self-contained ... ...
Found on http://www.britannica.com/eb/a-z/a/91

Aqua-lung

Aqua-Lung was the original English name of the first open-circuit, self-contained underwater breathing apparatus (or `SCUBA`) to reach worldwide popularity and commercial success. This class of equipment is now commonly referred to as a diving regulator or demand valve. The Aqua-Lung was invented in Paris during the winter of 1942–1943 by two .....
Found on http://en.wikipedia.org/wiki/Aqua-lung
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