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
Pierre-Antoine Cousteau most well-known post-war work was "Les lois de l'hospitalité" in which he justified collaboration, arguing "we [the collaborators] did not commit an error of judgement. There were just too many tanks and too many planes against us". He fell seriously ill in the late 1950s and had to withdraw from politics, requiring regular blood transfusions to survive. He died age 52 in Paris. Pierre-Antoine Cousteau Pierre-Antoine Cousteau (18 March 1906 – 17 December 1958) was a French far right polemicist and journalist. He was the brother of the famous explorer Jacques-Yves Cousteau. He was born in Saint-André-de-Cubzac, Gironde, and educated