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Aquanaut
An aquanaut is any person who remains underwater, breathing at the ambient pressure for long enough for the concentration of the inert components of the breathing gas dissolved in the body tissues to reach equilibrium, in a state known as saturation. Description The term ''aquanaut'' derives from the Latin word ''aqua'' ("water") plus the Greek ''nautes'' ("sailor"), by analogy to the similar construction "astronaut". The word is used to describe a person who stays underwater, breathing at the ambient pressure for long enough for the concentration of the inert components of the breathing gas dissolved in the body tissues to reach equilibrium, in a state known as saturation. Usually this is done in an underwater habitat on the seafloor for a period equal to or greater than 24 continuous hours without returning to the surface. The term is often restricted to scientists and academics, though there were a group of military aquanauts during the SEALAB program. Commercial dive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underwater Habitat
Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the Circadian rhythm, basic human functions of a 24-hour day, such as working, resting, eating, attending to personal hygiene, and sleeping. In this context, 'habitat' is generally used in a narrow sense to mean the interior and immediate exterior of the structure and its fixtures, but not its surrounding ocean, marine environment. Most early underwater habitats lacked regenerative systems for air, water, food, electricity, and other resources. However, some underwater habitats allow for these resources to be delivered using pipes, or generated within the habitat, rather than manually delivered. An underwater habitat has to meet the needs of human physiology and provide suitable Natural environment, environmental conditions, and the one which is most critical is breathing gas of suitable quality. Others concern the physical environment (pressure, temperature, light, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SEALAB
SEALAB I, II, and III were experimental underwater habitats developed and deployed by the United States Navy during the 1960s to prove the viability of saturation diving and humans living in isolation for extended periods of time. The knowledge gained from the SEALAB expeditions helped advance the science of underwater diving, deep sea diving and rescue and contributed to the understanding of the psychological and physiological strains humans can endure. United States Navy Genesis Project Preliminary research work was undertaken by George F. Bond, who named the project after the Book of Genesis, which prophesised humans would gain dominion over the oceans. Bond began investigations in 1957 to develop theories about saturation diving. Bond's team exposed rats, goats, monkeys, and human beings to various gas mixtures at different pressures. By 1963 they had collected enough data to test the first SEALAB habitat. At the time, Jacques Cousteau and Edwin A. Link were pursuing privat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tektite Habitat
The Tektite habitat was an underwater laboratory which was the home to divers during Tektite I and II programs. The Tektite program was the first scientists-in-the-sea program sponsored nationally. The habitat capsule was placed in Great Lameshur Bay, Saint John, U.S. Virgin Islands in 1969 and again in 1970. "Tektite III" refers to an educational project in the 1980s, using the original habitat capsule used by scientists, which was restored to be functional, but never used underwater again. Instead, it was open to visitors on dry land in San Francisco. Habitat The Tektite habitat was designed and built by General Electric Company Space Division at the Valley Forge Space Technology Center in King of Prussia, Pennsylvania. The Project Engineer who was responsible for the design of the habitat was Brooks Tenney, Jr. Tenney also served as the underwater Habitat Engineer on the International Mission, the last mission on the Tektite II project. The Program Manager for the Tektite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott Carpenter
Malcolm Scott Carpenter (May 1, 1925 – October 10, 2013) was an American naval officer and aviator, test pilot, aeronautical engineer, astronaut, and aquanaut. He was one of the Mercury Seven astronauts selected for NASA's Project Mercury in April 1959. Carpenter was the second American (after John Glenn) to orbit the Earth and the fourth American in space, after Alan Shepard, Gus Grissom, and John Glenn. Commissioned into the U.S. Navy in 1949, Carpenter became a naval aviator, flying a Lockheed P-2 Neptune with Patrol Squadron 6 (VP-6) on reconnaissance and anti-submarine warfare missions along the coasts of the Soviet Union and China during the Korean War and the Cold War. In 1954, he attended the U.S. Naval Test Pilot School at NAS Patuxent River, Maryland, and became a test pilot. In 1958, he was named Air Intelligence Officer of , which was then in dry dock at the Bremerton Navy Yard. The following year, Carpenter was selected as one of the Mercury Seven astron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvia Earle
Sylvia Alice Earle (born August 30, 1935) is an American marine biologist, oceanographer, explorer, author, and lecturer. She has been a National Geographic Explorer at Large (formerly Explorer in Residence) since 1998. Earle was the first female chief scientist of the U.S. National Oceanic and Atmospheric Administration, and was named by ''Time Magazine'' as its first Hero for the Planet in 1998. Earle is part of the group Ocean Elders, which is dedicated to protecting the ocean and its wildlife. Earle gained a large amount of publicity when she was featured in '' Seaspiracy'' (2021), a Netflix Original documentary by British filmmaker Ali Tabrizi. Earle eats a vegetarian diet. She describes the chemical build-up in carnivorous fish, the 90% depletion of populations of large fish, and references the health of oceans in her dietary decision. Also, she describes the seafood industry as "factory ships vacuuming up fish and everything else in their path. That's like using bulld ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robin Cook (American Novelist)
Robert Brian "Robin" Cook (born May 4, 1940)Stookey, Lorena Laura (1996). ''Robin Cook: A Critical Companion'', Westport, Connecticut, London: Greenwood Press. is an American physician and novelist who writes largely about medicine and topics affecting public health. He is known best for combining medical writing with the thriller genre. Many of his books have been bestsellers on ''The New York Times'' Best Seller List. Several of his books have also been featured by ''Reader's Digest''. His books have sold nearly 400 million copies worldwide. Early life and career Cook was born in Brooklyn, New York, and grew up in Woodside, Queens Woodside is a neighborhood in the western portion of the borough (New York City), borough of Queens in New York City. It is bordered on the south by Maspeth, Queens, Maspeth, on the north by Astoria, Queens, Astoria, on the west by Sunnyside, .... He relocated to Leonia, New Jersey when he was eight years old, where he could first have th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturation Diving
Saturation diving is an ambient pressure diving technique which allows a diver to remain at working depth for extended periods during which the body tissues become solubility, saturated with metabolically inert gas from the breathing gas mixture. Once saturated, the time required for Decompression (diving), decompression to surface pressure will not increase with longer exposure. The diver undergoes a single decompression at the end of the exposure of several days to weeks duration. The ratio of productive working time at depth to unproductive decompression time is thereby increased, and the health risk to the diver incurred by decompression is minimised. When a diver breathes pressurized gas, metabolically inert gases are needed in the mixture to dilute oxygen to non-toxic levels. These gases dissolve into the body's tissues, but if they come out of solution too quickly during decompression, they form bubbles in the tissues which can cause decompression sickness ("the bends"), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Sténuit
Robert Pierre André Sténuit (16 July 1933 – 9 December 2024) was a Belgian journalist, writer, and underwater archeologist. In 1962, he spent 24 hours on the floor of the Mediterranean Sea in the submersible "Link Cylinder" developed by Edwin Link, thus becoming the world's first aquanaut. Life and career Sténuit was born in Brussels on 16 July 1933. He began caving at the age of seventeen. He discovered diving in 1953 when he began scuba diving in flooded caves in Belgium. He subsequently became interested in speleology and went on to spend many years exploring the Caves of Han-sur-Lesse. Sténuit had a passion for history. At the age of 20, after reading ''600 Milliards Sous les Mers'' bHarry Reiseberg a work of fiction about shipwrecks and treasure diving, Sténuit left the Free University of Brussels, where he was studying political and diplomatic science in preparation for a career as a lawyer. In 1954, Sténuit began looking for the treasures of the Spanish fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturation Diving
Saturation diving is an ambient pressure diving technique which allows a diver to remain at working depth for extended periods during which the body tissues become solubility, saturated with metabolically inert gas from the breathing gas mixture. Once saturated, the time required for Decompression (diving), decompression to surface pressure will not increase with longer exposure. The diver undergoes a single decompression at the end of the exposure of several days to weeks duration. The ratio of productive working time at depth to unproductive decompression time is thereby increased, and the health risk to the diver incurred by decompression is minimised. When a diver breathes pressurized gas, metabolically inert gases are needed in the mixture to dilute oxygen to non-toxic levels. These gases dissolve into the body's tissues, but if they come out of solution too quickly during decompression, they form bubbles in the tissues which can cause decompression sickness ("the bends"), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Sheats
Robert Carlton Sheats (September 30, 1915 – March 9, 1995) was an American Master diver (United States Navy), Master Diver in the United States Navy. He enlisted in the Navy in 1935 and retired in July 1966. Career World War II In 1941, while Sheats was serving as a First Class Diver aboard the submarine tender USS Canopus (AS-9), USS ''Canopus'' in the Philippines, the ship was severely damaged by Japanese planes during the Battle of Bataan. After the ship was scuttled, to prevent its capture by enemy forces, Sheats joined the ground forces defending Bataan and Corregidor. On May 6, 1942, Sheats and his men were captured and taken as prisoners of war. During his imprisonment at Bataan, Sheats and several members of his team were pressed into service as salvage divers by the Japanese to recover silver coins worth over $8 million (in 1942) that had been dumped by a U.S. Navy vessel between Manila Bay and the island of Corregidor Island, Corregidor when capture of the vessel by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berry L
A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit although many pips or seeds may be present. Common examples of berries in the culinary sense are strawberries, raspberries, blueberries, blackberries, white currants, blackcurrants, and redcurrants. In Britain, soft fruit is a horticultural term for such fruits. The common usage of the term "berry" is different from the scientific or botanical definition of a berry, which refers to a fleshy fruit produced from the ovary of a single flower where the outer layer of the ovary wall develops into an edible fleshy portion(pericarp). The botanical definition includes many fruits that are not commonly known or referred to as berries, such as grapes, tomatoes, cucumbers, eggplants, bananas, and chili peppers. Fruits commonly considered berries but excluded by the botanical definition include strawberries, raspberries, and blac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alan Shepard
Alan Bartlett Shepard Jr. (November 18, 1923 – July 21, 1998) was an American astronaut. In 1961, he became the second person and the first American to travel into space and, in 1971, he became the List of Apollo astronauts#Apollo astronauts who walked on the Moon, fifth and oldest person to walk on the Moon, at age 47. A graduate of the United States Naval Academy at Annapolis, Shepard saw action with the surface navy during World War II. He became a naval aviator in 1947, and a test pilot in 1950. He was selected as one of the original NASA Mercury Seven astronauts in 1959, and in May 1961 he made the first crewed Project Mercury flight, Mercury-Redstone 3, in a spacecraft he named ''Freedom 7''. His craft entered space, but was not capable of achieving orbit. He became the second person, and the first American, to travel into space. In the final stages of Project Mercury, Shepard was scheduled to pilot the Mercury-Atlas 10 (MA-10), which was planned as a three-day mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
