About Jacques Piccard
Jacques Piccard was a Swiss oceanographer and engineer, known for having developed submarines for studying ocean currents. In the Challenger Deep, he and Lieutenant Don Walsh of the United States Navy were the first people to explore the deepest known part of the world's ocean, and the deepest known location on the surface of Earth's crust, the Mariana Trench, located in the western North Pacific Ocean. Jacques Piccard (28 July 1922 – 1 November 2008) was a Swiss oceanographer and engineer, known for having developed submarines for studying ocean currents. Jacques' father Auguste twice beat the record for reaching the highest altitude in a balloon, during 1931–1932. Together, Piccard and his father built three bathyscaphes between 1948 and 1955, which reached record depths of 4,600 feet and 10,000 feet (the last one was bought by the government).
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