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
Jacques Cousteau became one of the most important characteristics of modern television broadcasting. The Cousteau Society and its French counterpart, l'Équipe Cousteau, both of which Jacques-Yves Cousteau founded, are still active today. The Society is currently attempting to turn the original "Calypso" into a museum and it is raising funds to build a successor vessel, the "Calypso II". In his last years, after marrying again, Cousteau became involved in a legal battle with his son Jean-Michel over Jean-Michel licensing the Cousteau name for a South Pacific resort, resulting in Jean-Michel Cousteau being ordered by the court not to encourage confusion between his