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Jacques Piccard (28 July 19221 November 2008) was a Swiss oceanographer and engineer, known for having developed underwater vehicles for studying ocean currents. He and Lt. Don Walsh of the United States Navy were the first people to explore the deepest part of the world's ocean, and the deepest location on the surface of the Earth's crust, the Challenger Deep, in the Mariana Trench located in the western North Pacific Ocean. ==Family life== Jacques Piccard was born in Brussels, Belgium to Auguste Piccard, who was himself an adventurer and engineer. Jacques' father Auguste twice beat the record for reaching the highest altitude in a balloon, during 1931–1932. The Piccard family thus has the unique distinction of breaking world records for both the highest flight and the deepest dive.〔http://www.answers.com/topic/jacques-piccard〕 * Jules Piccard (professor of chemistry) * * Auguste Piccard (physicist, aeronaut, balloonist, hydronaut) * * * Jacques Piccard (hydronaut) * * * * Bertrand Piccard (aeronaut, balloonist) * * Jean Felix Piccard (organic chemist, aeronaut, and balloonist) * * Jeannette Piccard (wife of Jean Felix) (aeronaut and balloonist) * * * Don Piccard (balloonist) Jacques's father, who had already set altitude records in his balloon, started using the buoyancy technique used in balloons for developing a submersible vehicle, the bathyscaphe. Jacques initially started out his career by teaching economics at University of Geneva while continuing helping his father improve the bathyscaphe to demonstrate its potential for operating in deep waters. During that period Picard also completed a diploma at the Graduate Institute of International Studies in Geneva. Together, Picard 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). With this success, the younger Piccard abandoned economics to collaborate with his father on further improving the bathyscaphe and demonstrating its practicality for exploration and research. Jacques's son Bertrand Piccard is continuing his family traditions. He commanded the first non-stop balloon flight around the world in March 1999. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jacques Piccard」の詳細全文を読む スポンサード リンク
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