星形要塞7000發炮彈轟不垮！棱堡如何讓拿破侖都吃癟？城牆傾斜10°竟成火炮克星？荷蘭人用棱堡吊打西班牙十萬大軍！ скачать в хорошем качестве

星形要塞7000發炮彈轟不垮！棱堡如何讓拿破侖都吃癟？城牆傾斜10°竟成火炮克星？荷蘭人用棱堡吊打西班牙十萬大軍！

00:00 摘要 00:45 堡壘革新 06:41 棱堡攻防 10:33 棱堡的衰落 當18世紀歐洲火炮能轟塌70公尺長城牆時，為何荷蘭棱堡用星形工事讓西班牙4.5萬大軍寸步難行？揭秘棱堡三大逆天設計：10°傾斜城牆反殺攀爬敵兵、五角星壕溝布死亡交叉火力、空心棱堡暗藏200門火炮！從意大利首座三角堡到美國國歌誕生地麥克亨利堡，深度解析棱堡如何用幾何學對抗工業革命——直到1840年城市擴張吞噬了這些鋼鐵巨獸！你的家鄉又藏著哪些古代軍事要塞嗎？歡迎分享！ When European artillery in the 18th century could knock down a 70-meter-long wall, why did the Dutch bastion use star-shaped fortifications to make it difficult for 45,000 Spanish troops to move? Reveal the three amazing designs of the bastion: 10° inclined walls to kill climbing enemy soldiers, five-pointed trenches with death cross firepower, and hollow bastions hiding 200 artillery pieces! From Italy's first triangular fort to Fort McHenry, the birthplace of the American national anthem, an in-depth analysis of how bastions used geometry to fight the Industrial Revolution - until urban expansion swallowed up these steel behemoths in 1840! What ancient military fortresses are hidden in your hometown? Welcome to share!