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Sudden loss of underwater visibility , which can cause disorientation and a diver getting lost under an overhead. Stirring up silt or other light loose material, either by natural water movement or by diver activity, often due to poor trim and finning skills. Appropriate trim, buoyancy and propulsion techniques.
The underwater environment presents a constant hazard of asphyxiation due to drowning. Breathing apparatus used for diving is life-support equipment, and failure can have fatal consequences – reliability of the equipment and the ability of the diver to deal with a single point of failure are essential for diver safety.
Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O 2 ) partial pressures significantly greater than found in atmospheric air at sea level. Severe cases can result in cell damage and death, with effects most often seen in the central nervous system, lungs and eyes.
While the acidic properties of apple cider vinegar keep it from ever truly going bad, you'll still find an FDA-required expiration date on the bottle—usually between 2 and 5 years.
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Diving physics, or the physics of underwater diving, is the basic aspects of physics which describe the effects of the underwater environment on the underwater diver and their equipment, and the effects of blending, compressing, and storing breathing gas mixtures, and supplying them for use at ambient pressure. These effects are mostly ...
These range from the toxic effects of oxygen at high partial pressure, [40] through buildup of carbon dioxide due to excessive work of breathing and increased dead space, [41] to the exacerbation of the toxic effects of contaminants in the breathing gas due to the increased concentration at high pressures, [42] and include effects on the ...
Underwater explosions using dry ice and liquid nitrogen are captured in high definition slow motion by The Backyard Scientist.