The RMS Titanic sunk in the North Atlantic Ocean in 1912 but we still remember this tragic event. Staying in the water that's 70ºF for a long time definitely won't do your health any good. And a water temperature of 50ºF is a nightmare. It feels much colder than the air of the same temperature. What if the Titanic had sunk in warm water? Would all passengers have survived?

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