Others relied on military strength to fight, but Xiang Yu relied on brute strength. Liu Bang's counterattack relied on "picking up the inventor Han Xin as a plug-in", and tortured Xiang Yu who could only ride a horse into battle to doubt his life!
In the last years of the Qin Dynasty, chaos broke out. Zhao Gao was making fools of himself and Qin II was lying flat. Liu Bang, the "street runner" in Surabaya Pavilion, took the opportunity to form a grassroots team to fight against Qin. Originally he was following Xiang Yu, who rushed to the front line every day holding a big halberd and acting as a "human tank". When Liu Bang was at a loss, he picked up Han Xin, the "ancient version of the technology geek".
Who would have thought that Han Xin could not only lead troops, but also be a "hidden inventor"! Seeing that the communication of messages in the war was slow, he invented an "ancient version of mobile phone" and used copper sheets as signal boards and silk threads to transmit sounds. Liu Bang could chat with the front line while squatting in the camp. Afraid of Xiang Yu's sneak attack, he built a "bamboo drone" and tied a small lantern to the sky for reconnaissance. As soon as Xiang Yu's cavalry was dispatched, Liu Bang's side After receiving the letter, the march was slow, so he built a "wooden-wheeled car" and pulled it with a few horses, which was faster than Xiang Yu's horses. When Xiang Yu confronted Xiang Yu, Han Xin took out a "simple cannon" (fired in a clay tube) and blasted it a few times, and then placed a "trebuchet missile" to deter Xiang Yu's cavalry.
