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The cold water can cause heart attack due to severe vasoconstriction, [2] where the heart has to work harder to pump the same volume of blood throughout the arteries. For people with pre-existing cardiovascular disease, the additional workload can result in myocardial infarction and/or acute heart failure, which ultimately may lead to a cardiac ...
The instinctive drowning response is an instinctive reaction that occurs in humans, particularly in non-swimmers, when close to drowning.It is focused on attempting to keep the mouth above water to the exclusion of useful effort to attract help or self rescue, and is often not recognized by onlookers.
Drowning is a type of suffocation induced by the submersion of the mouth and nose in a liquid. Submersion injury refers to both drowning and near-miss incident. Most instances of fatal drowning occur alone or in situations where others present are either unaware of the victim's situation or unable to offer assistance.
Nicholas Armstrong (born March 1, 2001), known online as Sapnap, is an American YouTuber and livestreamer known for his Minecraft content. Along with Dream and GeorgeNotFound, he is part of the Dream Team and was a founding member of the Dream SMP Minecraft server. He has co-owned NRG Esports since 2022.
This flow creates a fast-moving rip current. A rip current (or just rip ) is a specific type of water current that can occur near beaches where waves break. A rip is a strong, localized, and narrow current of water that moves directly away from the shore by cutting through the lines of breaking waves, like a river flowing out to sea.
Trident of Poseidon. A trident (/ ˈ t r aɪ d ɛ n t /), (/ ˈ t r aɪ d ɪ n t /) is a three-pronged spear.It is used for spear fishing and historically as a polearm.As compared to an ordinary spear, the three tines increase the chance that a fish will be struck and decrease the chance that a fish will be able to dislodge itself if struck badly.
A crash dive is a maneuver by a submarine in which the vessel submerges as quickly as possible to avoid attack. Crash diving from the surface to avoid attack has been largely rendered obsolete with the advent of nuclear-powered submarines, as they normally operate submerged.
The Trident II Strategic Weapons System is an improved SLBM with greater accuracy, payload, and range than the earlier Trident C-4. It is a key element of the U.S. strategic nuclear triad and strengthens U.S. strategic deterrence. The Trident II is considered to be a durable sea-based system capable of engaging many targets.