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Bathyscaphe
A bathyscaphe () is a free-diving, self-propelled deep-sea submersible, consisting of a crew cabin similar to a '' Bathysphere'', but suspended below a float rather than from a surface cable, as in the classic ''Bathysphere'' design. The float is filled with gasoline because it is readily available, buoyant, and, for all practical purposes, incompressible. The incompressibility of the gasoline means the tanks can be very lightly constructed, since the pressure inside and outside the tanks equalizes, eliminating any differential. By contrast, the crew cabin must withstand a huge pressure differential and is massively built. Buoyancy at the surface can be trimmed easily by replacing gasoline in the tanks with water, because water has a greater density. Auguste Piccard, inventor of the first bathyscaphe, coined the name ''bathyscaphe'' using the Ancient Greek words (), meaning 'deep', and (), meaning 'vessel, ship'. Mode of operation To descend, a bathyscaphe floods air ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathyscaphe Trieste
''Trieste'' is a Swiss-designed, Italian-built deep-diving research bathyscaphe. In 1960, it became the first crewed vessel to reach the bottom of Challenger Deep in the Mariana Trench, the deepest point in Earth's seabed. The mission was the final goal for Project Nekton, a series of dives conducted by the United States Navy in the Pacific Ocean near Guam. The vessel was piloted by Swiss oceanographer Jacques Piccard and US Navy lieutenant Don Walsh. They reached a depth of about . The bathyscaphe was designed by Swiss scientist Auguste Piccard, the father of pilot Jacques Piccard. It was built in Italy and first launched in 1953. The vessel was first owned and operated by the French Navy until it was purchased by the US Navy in 1958. It was taken out of service in 1966. Since the 1980s, it has been on exhibit in the National Museum of the United States Navy in Washington, D.C. Design ''Trieste'' was designed by the Swiss scientist Auguste Piccard, based on his previous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathyscaphe Trieste With USS Lewis (DE-535) Over The Marianas Trench, 23 January 1960 (NH 96797)
A bathyscaphe () is a free-diving, self-propelled deep-sea submersible, consisting of a crew cabin similar to a ''Bathysphere'', but suspended below a float rather than from a surface cable, as in the classic ''Bathysphere'' design. The float is filled with gasoline because it is readily available, buoyant, and, for all practical purposes, incompressible. The incompressibility of the gasoline means the tanks can be very lightly constructed, since the pressure inside and outside the tanks equalizes, eliminating any differential. By contrast, the crew cabin must withstand a huge pressure differential and is massively built. Buoyancy at the surface can be trimmed easily by replacing gasoline in the tanks with water, because water has a greater density. Auguste Piccard, inventor of the first bathyscaphe, coined the name ''bathyscaphe'' using the Ancient Greek words (), meaning 'deep', and (), meaning 'vessel, ship'. Mode of operation To descend, a bathyscaphe floods air tanks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Challenger Deep
The Challenger Deep is the List of submarine topographical features#List of oceanic trenches, deepest known point of the seabed of Earth, located in the western Pacific Ocean at the southern end of the Mariana Trench, in the ocean territory of the Federated States of Micronesia. The General Bathymetric Chart of the Oceans, GEBCO Gazetteer of Undersea Feature Names indicates that the feature is situated at and has an approximated maximum depth of below sea level. A subsequent study revised the value to at a 95% confidence interval. However, both the precise geographic location and depth remain ambiguous, with contemporary measurements ranging from . The depression is named after the British Royal Navy survey ships , whose Challenger expedition, expedition of 1872–1876 first located it, and HMS Challenger (1931), HMS ''Challenger II'', whose expedition of 1950–1952 established its record-setting depth. The first descent by any vehicle was conducted by the United States N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mariana Trench
The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about east of the Mariana Islands; it is the deep sea, deepest oceanic trench on Earth. It is crescent-shaped and measures about in length and in width. The maximum known depth is at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep. The deepest point of the trench is more than farther from sea level than the peak of Mount Everest. At the bottom of the trench, the water column above exerts a pressure of , more than 1,071 times the standard atmospheric pressure at sea level. At this pressure, the density of water is increased by 4.96%. The temperature at the bottom is . In 2009, the Mariana Trench was established as a National monument (United States), US National Monument, Mariana Trench Marine National Monument. One-celled organisms called monothalamea have been found in the trench at a record depth of below the sea surface by researchers from the Scrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FNRS-2
The ''FNRS-2'' was the first bathyscaphe. It was created by Auguste Piccard. Work started in 1937 but was interrupted by World War II. The deep-diving submarine was finished in 1948. The bathyscaphe was named after the Belgian Fonds National de la Recherche Scientifique (FNRS), the funding organization for the venture. FNRS also funded the '' FNRS-1'' which was a balloon that set a world altitude record, also built by Piccard. The ''FNRS-2'' set world diving records, besting those of the bathyspheres, as no unwieldy cable was required for diving. It was in turn bested by a more refined version of itself, the bathyscaphe ''Trieste''. ''FNRS-2'' was built from 1946 to 1948. It was damaged during sea trials in 1948, off the Cape Verde Islands.''Encyclopædia Britannica'', 2010 Online, 9 September 2010 (accessed 9 September 2010) ''FNRS-2'' was sold to the French Navy when FNRS funding ran low, in 1948. The French rebuilt and rebaptised it '' FNRS-3''. It was eventually replac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Piccard
Jacques Piccard (28 July 19221 November 2008) 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. Family life Jacques Piccard was born in Brussels, Belgium, the son of 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 had the unique distinction of breaking world records for both the highest flight and the deepest dive. * Jules Piccard (professor of chemistry) ** Auguste Piccard (physicist, aeronaut, balloonist, hydronaut) *** Jacques Piccard (hydronaut) **** Bertrand Piccard (aeronaut, balloonist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Walsh
Don Walsh (November 2, 1931 – November 12, 2023) was an American oceanographer, U.S. Navy officer and marine policy specialist. While aboard the bathyscaphe ''Trieste'', he and Jacques Piccard made a record maximum descent in the Challenger Deep on January 23, 1960, to . Later and more accurate measurements have measured it at . Early life and education Walsh was born in Berkeley, California on November 2, 1931. He graduated with a bachelor's degree in engineering from the U.S. Naval Academy in 1954, and later, a Master's degree in political science from San Diego State University, and a PhD in physical oceanography from Texas A&M University. Career Walsh served 24 years in the U.S. Navy upon graduation from the Academy, spanning the Korean and Vietnam Wars.CAPT Don Walsh, USN (Ret.) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as ''boats'' rather than ''ships'' regardless of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navy, navies, large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; Blockade runner, blockade running; Ballistic missile submarine, nuclear deterrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FNRS-3
The ''FNRS-3'' or ''FNRS III'' is a bathyscaphe of the French Navy. It is currently preserved at Toulon. She set world depth records, competing against a more refined version of her design, the ''Trieste''. The French Navy eventually replaced her with the bathyscaphe , in the 1960s.Paine, Lincoln P. (1997). ''Ships of the World''. Houghton Mifflin. p. 188. After damage to the ''FNRS-2'' during its sea trials in 1948, the Belgian Fonds National de la Recherche Scientifique (FNRS) ran out of funding, and the submersible was sold to the French Navy, in 1950. She was subsequently substantially rebuilt and improved at Toulon naval base, and renamed ''FNRS-3''.''Encyclopædia Britannica'', 2010 Online, 9 September 2010 (accessed 9 September 2010) She was relaunched in 1953, under the command of Georges Houot, a French naval officer. On 15 February 1954, she made a dive 160 miles off Dakar, Senegal, in the Atlantic Ocean, beating the 1953 record of Auguste Piccard, set by the ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deepsea Challenger
''Deepsea Challenger'' (DCV 1) was a deep-diving submersible designed to reach the bottom of the Challenger Deep, the deepest-known point on Earth. On 26 March 2012, Canadian film director James Cameron piloted the craft to accomplish this goal in the second crewed dive reaching the Challenger Deep. Built in Sydney, Australia, by the research and design company Acheron Project Pty Ltd, ''Deepsea Challenger'' includes scientific sampling equipment and high-definition 3-D cameras; it reached the ocean's deepest point after two hours and 36 minutes of descent from the surface. Development ''Deepsea Challenger'' was built in Australia, in partnership with the National Geographic Society and with support from Rolex, in the Deepsea Challenge program. The construction of the submersible was headed by Australian engineer Ron Allum. Many of the submersible developer team members hail from Sydney's cave-diving fraternity including Allum himself with many years of cave-diving exper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathysphere
The ''Bathysphere'' () was a unique spherical deep sea, deep-sea submersible which was unpowered and lowered into the ocean on a cable, and was used to conduct a series of dives off the coast of Bermuda from 1930 to 1934. The ''Bathysphere'' was designed in 1928 and 1929 by the American engineer Otis Barton, to be used by the naturalist William Beebe for studying undersea wildlife. Beebe and Barton conducted dives in the ''Bathysphere'' together, marking the first time that a marine biology, marine biologist observed deep-sea animals in their native environment. Their dives set several consecutive world records for the deepest dive ever performed by a human. The record set by the deepest of these, to a depth of on August 15, 1934, lasted until it was broken by Barton in 1949 in a vessel called Benthoscope. Origin and design In 1928, the American naturalist William Beebe was given permission by the British government to establish a research station on Nonsuch Island, Bermuda. U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Piccard
Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer known for his record-breaking hydrogen balloon flights, with which he studied the Earth's upper atmosphere and became the first person to enter the Stratosphere. Piccard was also known for his invention of the first bathyscaphe, '' FNRS-2'', with which he made a number of unmanned dives in 1948 to explore the ocean's depths. Piccard's twin brother Jean Felix Piccard is also a notable figure in the annals of science and exploration, as are a number of their relatives, including Jacques Piccard, Bertrand Piccard, Jeannette Piccard and Don Piccard. Biography Piccard and his twin brother Jean Felix Piccard were born in Basel, Switzerland, on 28 January 1884. Showing an intense interest in science as a child, he attended the Swiss Federal Institute of Technology (ETH) in Zürich and became a professor of physics in Brussels at the Free University of Brussels in 192 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
