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5 May, 01:22

Cousteau and Gagnan:

A. invented SCUBA

B. lived in Sealab ||

C. developed "significant wave" theory

D. created a self-contained diving vessel called Trieste

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  1. 5 May, 01:41
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    The answer is A. Invented SCUBA

    Explanation:

    Emile Gagnan and Jacques Cousteau were engineers who invented the first SCUBA device, the Aqua-Lung. Gagnan's most important contribution to this discovery was his theory that a valve commonly used in gas generator engines would be useful in regulating air supply under water in varying pressures.
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