1915年、探検家シャクルトンは南極を目指してエンデュアランス号で旅をしました。
In 1915, the explorer Shackleton set out for Antarctica aboard the Endurance.
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However, the ship became trapped in the ice of the Weddell Sea.
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Ice is extremely hard, damaging the rudder and hull, and ultimately sinking the ship.
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Shackleton wrote in his diary, No ship, no matter what kind, can withstand this layer of ice.
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For a long time, it was believed that the Endurance sank because its rudder was broken.
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However, recent studies indicate that the cause lies in the weakness of the ships internal structure.
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Normally, polar ships are reinforced with diagonal wooden beams inside to increase durability, but the Endurance did not have these beams.
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Therefore, the ship cannot withstand the strong pressure of the ice.
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The Endurance was originally a cruise ship and is not suited for harsh environments like Antarctica.
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Shackleton was well aware of the ships weaknesses, but since there were no better options, he used it.
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Ultimately, despite the ship sinking, Shackleton rescued all of the crew.
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Thanks to this new research, the real reason why the Endurance sank has been revealed.
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