According to Liang Shu, "Yang Kan's arm strength is unparalleled. He used a twelve-stone bow and immediately used a six-stone bow. " Commentary: Yang Kan's arms are very powerful. His bow can reach 12 stones, and his bow can also use 6 stones immediately.
In ancient times, the strength of the bow was measured in kilograms. "One hundred and twenty kilograms as a force, and then the tiger force, not counting. The middle force is reduced by 23/ 10, and the lower force is reduced by half. " Archaeology has confirmed that a kilo in Ming Dynasty was about 59 1 g today. The standard bow and arrow in the army is 60 kilograms today, and the weak also use 30 kilograms today. The strong can open a strong bow of more than 70 kilograms, and the tall ones are collectively called "tiger power".
Extended data
After the establishment of the Qing Dynasty, the Turkic bow used in the Ming Dynasty was abandoned and replaced by a heavy bow and a long arrow with armor-piercing ability. The bow used in Qing dynasty was developed from the previous one, and it has a history of thousands of years. The tension of this kind of bow is very large, reaching more than 70 kilograms, and the bow body is also very long, reaching 1.8 meters.
There is only one kind of bow and arrow in Qing Dynasty, which is divided into emperor, prince, county king, bodyguard and official Ding Yong.
According to the purpose, it is divided into hunting, reviewing troops and actual combat. All kinds of bows and arrows are only different in material selection and decoration, and there are as many as 4 1 species of arrows.
There are four kinds of crossbows, namely Ruyi crossbow, Double-machine crossbow, Double-machine crossbow and Tiger-shooting crossbow, but there is no record of actual use. Although these crossbows were strongly impacted by firearms, they still galloped on the battlefield with the Eight Banners, showing tenacious vitality.
However, in the middle and late Qing Dynasty, the Eight Banners of Manchu Dynasty gradually became corrupt due to its long history, and the ancient style of riding and shooting disappeared. In addition, after the Opium War, the door of closed-door old China was opened, and China officials discovered more advanced firearms and quickly equipped their own troops. No bows and arrows were seen in Zeng Guofan's Xiang Army and Li Hongzhang's Huai Army.
At this point, the ancient crossbow, which has experienced a long history with China's military development, finally disappeared irretrievably under the horizon of the military revolution like the sunset in the western hills.
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