The fisherman had a strong interest in the sheepskin sac, in fact, the main role of the sheepskin bag in the past was to tie the raft. In the upper reaches of the Yellow River, sheepskin rafts are a common means of crossing the river. I don't know how Wu Yuanshuang's brain hole was opened, and he actually thought of using this thing to fill gasoline.

The sheepskin pouch was tightly tied, and no matter how much it was swayed in the carriage, it would not be a problem. When Yun Hao saw the old fisherman, the old guy was directing people to load the sheepskin bag onto the trebuchet.

"You're just in time, this thing is good. You kid is also clever, why didn't you think of such a good method. I just tested it with a trebuchet loaded with water, and twenty or thirty pounds of things affect the range very much. This kind of range can easily be destroyed by the eight-bull crossbow on the city wall. With the advantage of height, the eight-ox crossbow on the city wall always has a longer range than on the ground. As soon as the old fisherman finished speaking, the trebuchet behind him "creaked". A sheep-shaped ball was thrown.

After only flying a distance of two or three hundred paces, he fell to the ground. Gravity caused the sheepskin to crack, and the water inside flowed to the ground.

Yun Hao stroked his forehead, and said that he was not clever. The sheepskin is too big to be replaced with a smaller one? Rabbit skin is good, and it should be no problem to pack three or five catties. A gravity lever trebuchet can send this kind of thing a thousand steps, not to mention an eight-ox crossbow, even an eight-one bar can't reach it.

"Fisherman, what do you think about changing the sheepskin bag with a rabbit skin? It's cheap, and rabbits breed fast. A pair of rabbits can give a litter in three or two months. Yun Hao smiled and arched his hand, hoping to be praised by the old guy.

Unexpectedly, the old guy slapped Yun Hao on the back of the head. "With such a good idea, why didn't you tell the old man earlier. It's a waste of time for the old man to work all day! ”

"The kid just arrived!"

"Then I'll beat you up, won't I?"

Unable to offend the old thing who was annoyed and ashamed, Yun Hao decided to talk to the fishermen and young in the future. The Tang Dynasty established the country with filial piety, and this kind of elderly guy walked sideways in Li Yuan's Jinluan Palace. In the academy, the fisherman is a crab-like existence. Poor Wen Daya is eager to make a shrine to this old gentleman.

"Hey......! The old man is anxious! There was a battle report from the front line in Luoyang, and the city could only be besieged after a long time. Seeing the grievances on Yun Hao's face, the old fisher sighed helplessly.

"Isn't Momen advocating both love and non-attack? Why are you suddenly interested in Battle-Array Killing? Yun Hao looked at the old man suspiciously, this kind of thing shouldn't be the excitement of the old guy.

"You know what? It is true that people will die after a war, but there are only a limited number of people who will die. The Tang Dynasty military discipline is strict, and there will never be a massacre of the city in the Central Plains.

But the siege was different, and the first to reduce rations were the common people. Those in power will always try to keep the army well fed and clothed, and when there is no food to eat. Man has become food! In the history of the siege, how many times have there been tragedies of cannibalism.

Do you think the old man likes to study this murderous weapon? But if you don't kill people, you can't save people. Only by quickly capturing Luoyang can we prevent Zhu Mi's tragedy from repeating itself. ”

Yun Hao solemnly gave the old guy a deep salute, although the theory that killing people can save people looks unreasonable. But it's something that really exists. In my last life, I watched a relatively movie "Hero", and the truth in it is the same as that of the fisherman.

In times of war, only great unification can reduce killings. I thought that the old guy wanted to be loyal to the Li family's dynasty, but I didn't expect the old guy to be the real fraternity. Only when the Tang Dynasty of the Li family dominates the world, the killing in the chaotic times at the end of the Sui Dynasty will stop. No wonder the old guy worked so killing weapons.

"The sulfur purification you mentioned is still a big problem. The production efficiency is too slow, and according to this efficiency, it can't produce a few hundred catties a year. This is already the result of 200 people working in shifts! The old fisherman was helpless, and the purification of sulfur was beyond his knowledge. The output of a few hundred catties is definitely the result of sleeplessness.

"Don't be in a hurry, gunpowder is a new thing. If you want to get good gunpowder, you have to start with stupid methods. Then step by step, it is gradually simplified, and everything has an accumulation process. I believe that at the current rate of research, we will be able to find a suitable way to purify sulfur in three to five years. ”

When the computer first came out, it was the size of a three-bedroom apartment and weighed thirty tons. You're only capable of doing 5,000 calculations per second, decades later. A smartphone can be carried in a pocket, and a kindergarten doll has a problem playing with it. But the computing speed is 10 million times that of the original. Holding "Lazy Tang", "Usurpation of Qin" and "Han Xiong", I am not tired at all.

There was no way to tell Yu Lao about the evolution of the computer, Yun Hao could only talk about it briefly. I hope that the old guy can draw inferences from one another, and accumulation is the attitude that researchers should have.

The old fisherman nodded thoughtfully, it was indeed so. When a lot of things are made, they are very complicated. A little bit of simplification, and finally it becomes easier and more efficient.

"In fact, there is such a thing as fire oil, which can already cause an imbalance on the battlefield. We used to look at each other, although Wu Yuanshuang was so bad that it was bubbling. But the head is still very bright, if the incendiary bomb made of rabbits is too small. We can use pig urine bubbles, sheep urine bubbles and other things. In short, a big step has been taken in the actual combat of thermal oil. It is believed that when this thing arrives on the battlefield, whether it is infantry or cavalry, it will appear in their most terrifying nightmares. ”

The reason makes sense, the old and the young are no longer entangled. The idea of Yun Hao, the veteran fisherman, studied it with a few Momen disciples and felt that it was very feasible. A few guys quickly look for urine bubbles to do experiments!

That thing can't be eaten, so it should be easy to get it. Without considering the cost, there is a problem with elephant urine bubbles.

After a day and a night of experiments, Yun Hao and Yu Lao agreed that sheep urine bubbles are very good. The main reason is that the elasticity of the sheep urine bubble is better, which may be related to the habits of the sheep. Pigs generally urinate on the spot, while sheep generally don't pee when they sleep.

The trebuchet easily sent about ten catties of water sheep urine bubbles to 800 steps away, and then filled it with a full amount of gasoline and threw it out with a fuse. The range actually exceeded just now, and Yun Hao felt that this was the result of gasoline being lighter than water. The leather bounced off the ground a few times, and then an orange fireball rose into the air. Wherever countless flames are splashed, they burn. This is the result of frosting, and Yun Hao and Yu Lao are very satisfied with the results of the experiment.

The large-scale manufacture of incendiary bombs was immediately put on the agenda by Wen Daya. To this end, Li Yuan allocated hundreds of death row prisoners to the academy. The last leak, Li Yuan was determined not to repeat it.