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Leakage of water into the breathing loop of a rebreather, which dissolves alkaline material used to chemically remove carbon dioxide from exhaled air. This contaminated water may move further along the breathing loop and reach the diver's mouth, where it may cause choking, and in the case of strong alkalis, caustic corrosion of the mucous ...
The diver controls the flow rate of the water from a valve at the hip, allowing control of the warmth of the suit in response to changes in environmental conditions and workload. Tubes inside the suit distribute the water to the limbs, chest, and back. Boots, gloves, and hood are also supplied with hot water from the ends of the distribution hoses.
Immersion in water and exposure to cold water and high pressure have physiological effects on the diver which limit the depths and duration possible in ambient pressure diving. Breath-hold endurance is a severe limitation, and breathing at high ambient pressure adds further complications, both directly and indirectly.
Naturally occurring water is often unfit to drink (see Potability of backcountry water). [11] Sweating removes not only water, but also salt. This may result in a deficiency of sodium (hyponatremia). Eating salty snacks together with drinking water helps to avoid this problem. [11] If deprived of food for several days, travelers may become ...
[2] [3] Due to their affordability, ease of use, and relatively low transportation and maintenance costs, personal watercraft have significantly increased the number of water-based enthusiasts in the U.S. [citation needed] This rise in participation has created conflicts between the various boating segments in the U.S. and a need for additional ...
An isolation tank, sensory deprivation tank, float tank, float pod, float cabin, flotation tank, or sensory attenuation tank is a water filled, pitch-black, light-proof, soundproof environment heated to the same temperature as the skin.
DANGER [signs] should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved." [1] OSHA 1910.145 Definition: "Shall be used in major hazard situations where an immediate hazard presents a threat of death or serious injury to employees. Danger tags shall be used only in these situations." [2]
Freediving blackout, breath-hold blackout, [1] or apnea blackout is a class of hypoxic blackout, a loss of consciousness caused by cerebral hypoxia towards the end of a breath-hold (freedive or dynamic apnea) dive, when the swimmer does not necessarily experience an urgent need to breathe and has no other obvious medical condition that might have caused it.