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In 1983, Edward D. Thalmann published the E-L model for constant P O 2 nitrox and heliox closed circuit rebreathers, [19] in 1984 published U.S. Navy Exponential-Linear algorithm and tables for constant P O 2 Nitrox closed circuit rebreather (CCR) applications, [20] and in 1985 Thalmann extended use of the E-L model for constant P O 2 heliox ...
The saving is proportional to the ambient pressure, so is greater for deeper dives, and is particularly significant when expensive mixtures containing helium are used as the inert gas diluent. The rebreather also adds gas to compensate for compression when dive depth increases, and vents gas to prevent overexpansion when depth decreases. [2] [5 ...
Depth limit for divers breathing air specified by the British Sub-Aqua Club and Sub-Aqua Association. [16] 60 m (200 ft) Depth limit for a group of 2 to 3 French Level 3 recreational divers, breathing air. [17] 66 m (217 ft) Depth at which breathing compressed air exposes the diver to an oxygen partial pressure of 1.6 bar (23 psi).
Winter brings less daylight and colder temperatures, which can disrupt sleep. Seasonal Affective Disorder (SAD) is more common in winter due to the lack of sunlight, causing sleep disturbances.
Doctors and specialists at the Murdoch Children's Research Institute in Melbourne, Australia, are studying and reprogramming the potential of the blood to treat heart failure in children.
In 1972, Robert Hollis founded the parent company American Underwater Products which did business as Oceanic. [2] Aeris, Originally also a brand of American Underwater Products, founded in 1998, was merged with Oceanic in 2014. The Aeris brand covered a wide range of recreational scuba equipment, including regulators, dive computers, buoyancy ...
Prism 2 – Notable for a radial scrubber and high-current oxygen cells from the Navy MK15 unit enabling an analogue gauge to read the oxygen levels. [citation needed] ScubaForce. SF2 (rebreather) – Back or sidemount ECCR with bellows counterlung. [53] Siebe Gorman – British manufacturer of diving equipment and salvage contractor
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