Broken River Embers

When Shen Kuo wrote "The Latecomers", he would not have thought that these four words would turn into a question eight hundred years later. From the Song Dynasty to the Qing Dynasty, Jia Xian's calculation manuscripts were snatched from the fire scene, the bamboo fragments Zhao Laojiu buried in the soil, and the nautical charts drawn by Lin Zexu one by one... Countless inquirers spent their lives to answer the "questions" of their predecessors, but they were always crushed by the same plow - the plow in the name of "useful", so that the heat could only boil salt, arithmetic was reduced to a terminal skill, and the nautical charts were never updated. So with the old locust tree on Meishan Mountain, it was not just an emperor who was hanged, but also a dynasty that did not ask for the foundation of the Internet. So during the Sino-Japanese War of 1894, the Zhiyuan ship's compass deviated by half a degree compared to the Japanese ship - half a degree at sea is the distance between missing and being hit. So in Nanjing in 1937, soldiers used their bodies to resist the torrent of steel, and civilians called out names in a pool of blood that never received a response.