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John Morgan Wells
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John Morgan Wells
John Morgan Wells (April 12, 1940 - July 28, 2017) was a marine biologist, and physiologist involved in the development of decompression systems for deep diving, and the use of nitrox as a breathing gas for diving. He is known for developing the widely used NOAA Nitrox I (32% O2/N2) and II (36% O2/N2) mixtures and their decompression tables in the late 1970s, the deep diving mixture of oxygen, helium, and nitrogen known as NOAA Trimix I, for research in undersea habitats, where divers live and work under pressure for extended periods, and for training diving physicians and medical technicians in hyperbaric medicine.
At 14, Wells made his first surface-supplied diving system from a spray painting compressor powered by a motor-scooter engine, and later built an oxygen rebreather from surplus aircraft respirator parts based on diagrams in the U.S. Navy Diving Manual, which he used for several years. He later switched to open circuit air diving and taught scuba diving while in college.
Wells received his PhD in physiology from Scripps Institution of Oceanography (University of California, San Diego). His thesis is titled "Pressure and Hemoglobin Oxygenation".
While at Scripps he trained as a scientific diver before joining the US Navy "Man in the Sea" project, where he was trained in rebreather and mixed gas diving. In 1965, he was an aquanaut on SeaLab II, Team 3 along with team-leader Robert Sheats on a 15-day, 205 foot (62 m) helium/oxygen saturation dive.
Wells worked for NOAA for 23 years, starting soon after NOAA was established. He was appointed director of the NOAA Diving Program in 1978 and in 1989 created the NOAA Experimental Diving Unit where he worked with divers like Dick Rutkowski with whom he developed the use of Nitrox in diving.
In 1970, he introduced the concept of Equivalent Air Depth (EAD). Wells developed diving procedures for oxygen-enriched air throughout the 1970s, and published a standard for Nitrox I in 1978, followed by the Nitrox II standard in 1990, and wrote many articles on the use of Nitrox in diving. He later developed the NOAA Trimix I standard mixture of oxygen, helium, and nitrogen used in deep diving.
Wells was also known for conducting research in undersea habitats, and is credited with having spent more time as an aquanaut, and having lived in more underwater habitats than any other person. He worked in Sealab II, Tektite, Edalhab, Hydrolab, PRINUL, Helgoland (Germany), and LORA (Canadian, under ice) habitats. He also served as operations director for special missions of Hydrolab and Helgoland in U.S. waters. In 1993, he developed dive procedures and safety plan for examination of the wreck of the USS Monitor.
In 1993, he developed dive procedures and safety plan for examination of the wreck of the USS Monitor.
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John Morgan Wells
John Morgan Wells (April 12, 1940 - July 28, 2017) was a marine biologist, and physiologist involved in the development of decompression systems for deep diving, and the use of nitrox as a breathing gas for diving. He is known for developing the widely used NOAA Nitrox I (32% O2/N2) and II (36% O2/N2) mixtures and their decompression tables in the late 1970s, the deep diving mixture of oxygen, helium, and nitrogen known as NOAA Trimix I, for research in undersea habitats, where divers live and work under pressure for extended periods, and for training diving physicians and medical technicians in hyperbaric medicine.
At 14, Wells made his first surface-supplied diving system from a spray painting compressor powered by a motor-scooter engine, and later built an oxygen rebreather from surplus aircraft respirator parts based on diagrams in the U.S. Navy Diving Manual, which he used for several years. He later switched to open circuit air diving and taught scuba diving while in college.
Wells received his PhD in physiology from Scripps Institution of Oceanography (University of California, San Diego). His thesis is titled "Pressure and Hemoglobin Oxygenation".
While at Scripps he trained as a scientific diver before joining the US Navy "Man in the Sea" project, where he was trained in rebreather and mixed gas diving. In 1965, he was an aquanaut on SeaLab II, Team 3 along with team-leader Robert Sheats on a 15-day, 205 foot (62 m) helium/oxygen saturation dive.
Wells worked for NOAA for 23 years, starting soon after NOAA was established. He was appointed director of the NOAA Diving Program in 1978 and in 1989 created the NOAA Experimental Diving Unit where he worked with divers like Dick Rutkowski with whom he developed the use of Nitrox in diving.
In 1970, he introduced the concept of Equivalent Air Depth (EAD). Wells developed diving procedures for oxygen-enriched air throughout the 1970s, and published a standard for Nitrox I in 1978, followed by the Nitrox II standard in 1990, and wrote many articles on the use of Nitrox in diving. He later developed the NOAA Trimix I standard mixture of oxygen, helium, and nitrogen used in deep diving.
Wells was also known for conducting research in undersea habitats, and is credited with having spent more time as an aquanaut, and having lived in more underwater habitats than any other person. He worked in Sealab II, Tektite, Edalhab, Hydrolab, PRINUL, Helgoland (Germany), and LORA (Canadian, under ice) habitats. He also served as operations director for special missions of Hydrolab and Helgoland in U.S. waters. In 1993, he developed dive procedures and safety plan for examination of the wreck of the USS Monitor.
In 1993, he developed dive procedures and safety plan for examination of the wreck of the USS Monitor.