為什麼艦船的船頭有這種各樣的形狀，每種形狀又有什麼差別？現代軍艦大多都是那種艦首？【那是為什麼】

介紹：
00:00 摘要
00:42 片頭
04:24 飛剪式艦首
08:43 勺型艦首
11:16 球形艦首

船首（又寫作艏、艦艏。英文對應Bow），是船身的最前部。相應的船身最尾端則稱為船尾（或艉、艦尾）。船首的形狀需要考慮減少船身在水中的阻力，如球狀船首（Bulbous Bow）可以消減海浪沖擊。不過船體較低的舟船（如液貨船）往往采用更圓實的設計以最大化載貨容量。船首需要有一定高度防止水濺到甲板上，否則不但甲板會變的濕滑，而且海水的腐蝕性可能會侵蝕船身的金屬，當溫度過低時，也會造成甲板結冰，增加船身重量。

The bow (also written as bow, foremost, and corresponding to Bow in English) is the front part of the ship. The corresponding rear end of the ship is called the stern (or stern, stern). The shape of the bow needs to consider reducing the resistance of the ship in the water. For example, a bulbous bow can reduce the impact of waves. However, ships with lower hulls (such as liquid cargo ships) often adopt a more rounded design to maximize cargo capacity. The bow needs to have a certain height to prevent water from splashing onto the deck. Otherwise, not only will the deck become slippery, but the corrosiveness of seawater may corrode the metal of the hull. When the temperature is too low, it will also cause the deck to freeze, increasing the weight of the hull.