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Auguste Piccard

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Nationality  Swiss
Name  Auguste Piccard
Siblings  Jean Piccard
Alma mater  ETH Zurich
Role  Physicist
Grandchildren  Bertrand Piccard
Auguste Piccard Auguste Piccard Wikipedia the free encyclopedia
Born  Auguste Antoine Piccard 28 January 1884 Basel, Switzerland (1884-01-28)
Fields  physics, inventor, explorer
Institutions  Free University of Brussels (now Universite Libre de Bruxelles and Vrije Universiteit Brussel)
Died  March 24, 1962, Lausanne, Switzerland
Children  Jacques Piccard, Marianne Piccard, Denise Piccard, Genevieve Piccard
Parents  Jules Piccard, Helene Piccard
Similar People  Jacques Piccard, Bertrand Piccard, Don Walsh, Jean Piccard

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Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer.


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Auguste Piccard Auguste Piccard Wikiwand

Piccard and his twin brother Jean Felix were born in Basel, Switzerland. Showing an intense interest in science as a child, he attended the Swiss Federal Institute of Technology (ETH) in Zurich, and became a professor of physics in Brussels at the Free University of Brussels in 1922, the same year his son Jacques Piccard was born. He was a member of the Solvay Congress of 1922, 1924, 1927, 1930 and 1933.

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In 1930, an interest in ballooning, and a curiosity about the upper atmosphere led him to design a spherical, pressurized aluminum gondola that would allow ascent to great altitude without requiring a pressure suit. Supported by the Belgian Fonds National de la Recherche Scientifique (FNRS) Piccard constructed his gondola.

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An important motivation for his research in the upper atmosphere were measurements of cosmic radiation, which were supposed to give experimental evidence for the theories of Albert Einstein, whom Piccard knew from the Solvay conferences and who was a fellow alumnus of ETH.

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On May 27, 1931, Auguste Piccard and Paul Kipfer took off from Augsburg, Germany, and reached a record altitude of 15,781 m (51,775 ft). (FAI Record File Number 10634) During this flight, Piccard was able to gather substantial data on the upper atmosphere, as well as measure cosmic rays. On 18 August 1932, launched from Dubendorf, Switzerland, Piccard and Max Cosyns made a second record-breaking ascent to 16,201 m (53,153 ft). (FAI Record File Number 6590) He ultimately made a total of twenty-seven balloon flights, setting a final record of 23,000 m (75,459 ft).

In the mid-1930s, Piccard's interests shifted when he realized that a modification of his high altitude balloon cockpit would allow descent into the deep ocean. By 1937, he had designed the bathyscaphe, a small steel gondola built to withstand great external pressure. Construction began, but was interrupted by the outbreak of World War II. Resuming work in 1945, he completed the bubble-shaped cockpit that maintained normal air pressure for a person inside the capsule even as the water pressure outside increased to over 46 MPa (6,700 psi). Above the heavy steel capsule, a large flotation tank was attached and filled with a low density liquid for buoyancy. Liquids are relatively incompressible and can provide buoyancy that does not change as the pressure increases. And so, the huge tank was filled with gasoline, not as a fuel, but as flotation. To make the now floating craft sink, tons of iron were attached to the float with a release mechanism to allow resurfacing. This craft was named FNRS-2 and made a number of unmanned dives in 1948 before being given to the French Navy in 1950. There, it was redesigned, and in 1954, it took a man safely down 4,176 m (13,701 ft).

Piccard family

  • 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)
  • References

    Auguste Piccard Wikipedia

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