Piccard, Jacques Ernest Jean (1922- )

Belgian-born Swiss scientist. He collaborated with his father, Swiss scientist Auguste Piccard, in creating the first bathyscaphes, making the world's deepest-ever dive (10,917 m/35, 816 ft) on 23 January 1960 in the Trieste. He went on to manufacture mesoscaphs (tourist submarines), and was chief scientist in the research submarine Ben Franklin, which in 1969 made a 30-day, 2,400-kilometre/1,500-mile drift dive in the Gulf Stream. His publications include The Sun Beneath the Sea (1971). Piccard was born in Brussels, Belgium.