船底の「四角い穴」は魚を吸い込む？ ドックで船を横から見ると、船底付近に格子状の網がついた穴（シーチェスト）がいくつかあります。 これはエンジンを冷やすための海水を取り込む口です。網がついているのは、魚や大きなゴミを吸い込まないため。ドックではこの網を外して、中に詰まった貝殻やゴミを掃除します。ここが詰まるとエンジンがオーバーヒートして船が止まってしまうため、まさに船の「急所」のメンテナンスです。 Does the “square hole” in the hull suck in fish? When you look at a ship from the side in dry dock, you'll see several holes near the hull fitted with grid-like screens (sea chests). These are intakes for seawater used to cool the engine. The screens are there to prevent fish and large debris from

27K views · 155 reactions | Two climbers were rescued by the coast guard from a 200-foot-tall sea stack in Scotland on Thursday. The two men were unable to move up or down due to severe weather conditions and the tide coming in, according to the coast guard. | CBS News | Facebook