Jacques Cousteau and Pierre-Antoine was released in 1954. During the 1940s, Cousteau is credited with improving the aqua-lung design which gave birth to the open-circuit scuba technology used today. According to his first book, "" (1953), Cousteau started diving with Fernez goggles in 1936, and in 1939 used the self-contained underwater breathing apparatus invented in 1926 by Commander Yves le Prieur. Cousteau was not satisfied with the length of time he could spend underwater with the Le Prieur apparatus so he improved it to extend underwater duration by adding a demand regulator, invented in 1942 by Émile Gagnan. In 1943 Cousteau tried
Maurice Fargues Maurice Fargues Maurice Fargues (April 23, 1913 – September 17, 1947) was a diver with the French Navy and a close associate of commander Philippe Tailliez and deputy commander Jacques Cousteau. In August 1946, Fargues saved the lives of Cousteau and Frédéric Dumas during their dive into the Fountain of Vaucluse. On September 17, 1947, while attempting to set a new depth record, Maurice Fargues became the first diver to die using an aqualung. In late 1945, Petty Officer Maurice Fargues joined the newly formed GRS (now called CEPHISMER), commanded by Philippe Tailliez, with Cousteau as its deputy commander and