When Li Shimin stood in front of a behemoth, he finally understood that his father had the capital to show off.

"Is this a winch crossbow?"

After Li Shimin asked, he was puzzled, the crossbow in front of him was different from the winch crossbow he had seen, there were two bows on it, and the crossbow arm was longer than the winch crossbow, about eight or nine feet long, and the body size was also larger.

"This is a modification of the winch crossbow, which you can call a bed crossbow." Li Yuan smiled and said what Wang Yu had told him before.

Bed crossbow?

It's a more appropriate name.

Li Yuan raised his chin at Wang Yu: "Xiao Yu'er, you come and tell Erlang about the power of this bed crossbow." ”

Wang Yu comprehended, coughed lightly, and said slowly: "The bed crossbow can combine two or three bows together, which greatly enhances the tension and strength of the crossbow, and makes it more powerful. ”

She pointed to the bed crossbow with two bows in front of her and said, "This is a double-bow bed crossbow, and the arrows used are chisel arrows, and the arrowheads are flat chisel-shaped, and the range is about one hundred and twenty to one hundred and thirty-five paces.

"There is also a three-bow bed crossbow, which requires eight old cows to pull it, so it is also called the 'eight-bow crossbow'.

"The arrows it uses are treadmill arrows, and its function is to make the arrows nailed to the rammed earth walls in rows when attacking the enemy's city, so that the besiegers can climb the edge of the city and capture the city.

You can also put a pocket on the string, each pocket contains dozens of arrows, and shoots at the same time, which is called "jackdaw arrow". ”

Li Shimin exclaimed: "One and ten arrows, isn't that the legendary Zhuge Repeater?" ”

"That's right." Wang Yu nodded: "With iron as the arrow, the arrow is eight inches long, and ten arrows are fired, which is called Yuanrong, that is, Zhuge Lianba." ”

Li Shimin looked up: "Where is it?" Take me to see it. ”

"Ahem."

Li Yuan coughed and said, "Well, that one is still under close development, and only this kind of double-bow bed crossbow has been built at present, and I wanted to try the power, but now it seems that it is better to talk about it slowly." ”

Li Shimin bowed his head, that's right, it is not appropriate to make too much noise now, otherwise Su Wei and Zhao Cai will seize the handle.

But just this double-bow bed crossbow has already impressed him, no wonder Su Wei accused his father of privately building siege equipment, this kind of bed crossbow can not only be used to defend the city, but also can be used to siege the city, and the siege effect is better.

Li Shimin looked at Wang Yu with a look of surprise: "So, you sent a diagram of the structure of the bed crossbow to Aya that day?" ”

"Hmm." Wang Yu nodded.

"How did you draw it?" Li Shimin is really curious about what she has in her head.

Who knew that Wang Yu looked at him with a very disgusted gaze, his tone was indifferent, and he didn't show off at all: "It is said that you should read more books usually, if you are like your sister-in-law every day, you can also improve your weapons." ”

Li Shimin choked up, his heart was panicked, and he couldn't hold back his curiosity and asked, "Which book did you get inspired from?" ”

"Mozi", "Liutao"."

It turned out to be these two books, and it seems to be a bit impressive.

Li Shimin thought about it and remembered that there was a chariot in "Liutao" that could fire three crossbow arrows at the same time, called the Rhubarb Shen Lian Crossbow Da Fuxu.

But this kind of large-scale bow crossbow was developed later, which is the winch crossbow used now, and the power is far from what is mentioned in the book, and no one can make the legendary Zhuge crossbow.

Unexpectedly, Wang Yu was able to draw inferences from one another, improve the winch crossbow, and create a more powerful repeater.

This little girl is really talented.

After the three of them visited, Li Yuan told the master again and strengthened the guards before returning to the city.

------

Su Yan followed Su Wei, and Wang Yu asked him to go back to Fang Guogong's Mansion tonight, and then go to Tang Guogong's Mansion tomorrow to find her.

Su Wei sat solemnly on the top and told Su Yan: "We are still too hasty this time, and we must be more cautious in the future."

"It's okay for you to follow Wang Yu to the Tang State Mansion, you can find out more information.

"However, you have to pay attention, Wang Yu is a big ghost, you have to be vigilant, don't let her grab any tricks and coerce us in turn."

Su Yan obediently responded.

Su Wei saw that after staying in the barracks for a while, his temperament calmed down a lot, and he felt relieved in his heart, and after telling him carefully, he sent him back to his room.

Zhao Cai said to Su Wei worriedly: "Fang Guogong, it seems that Your Majesty's suspicions are right, Li Yuan does have different intentions.

"It's just that now we don't have real evidence, and we have nothing to do with Li Yuan, and we really have failed Your Majesty's expectations."

Su Wei took a sip of the teacup, his face calm: "Don't worry, the fox will always show its tail, we just need to wait patiently..."

-----

The following days were very peaceful, Su Yu became Wang Yu's attendant, he thought that Wang Yu would instruct him to do some rough work and torture him in every way, but Wang Yu did not do it.

Wang Yu asked Su Yan to go to class with her, and every day in addition to completing the homework assigned by her husband, she also had to complete the homework assigned to him by Wang Yu, such as endorsing, writing articles, composing poems, etc.

Sometimes some strange tasks will be assigned to him, such as disassembling Kong Ming's lock and restoring it, and the difficulty increases step by step; For example, ask him to do the problems in "Nine Chapters of Arithmetic".

"Today there is a wall five feet thick, and two rats wear it against each other. Rats are one foot a day, and mice are also one foot a day. Rats are doubled daily, and mice are doubled daily. Q: When will we meet? How much do you wear? ”

"Today there is a bucket of wine, and the money is fifty; A bucket of wine, a straight money of ten. Today, the money will be thirty, and you will get two buckets of wine, and ask how much alcohol and wine you get? ”

Calculations like these made his head dizzy, and as soon as he saw the book, he wanted to hit the wall.

Thinking that he is a thorough gentleman in Luoyang, he only seeks pleasure, when did he sit down quietly and read?

Reading was a kind of torture for him, and Wang Yu actually let him study, which was more uncomfortable than killing him.

Therefore, at the beginning, Su Kang resisted and refused to obey.

Wang Yu didn't say anything, but only ordered people to lock him up in the house and not give him food or drink. Then he beckoned a large group of little ladies Xiao Langjun in the yard outside his house, playing and frolicking, eating and drinking, and the life was extremely leisurely.

And then...... Su Yan surrendered, after all, he had to eat before he had the strength to resist, not to mention that he still had a task to do.

Thinking of the task, Su Yan felt that there was almost no chance that he would complete the task.

The days passed day by day, and Jinyang City seemed to be calm on the surface, but in fact, the dark tide was surging.

This calm was broken after the news of "Li Mi's rebellion against the Sui uprising" came from Luoyang, and the dark tide surfaced.

-----

The eastern capital is Luoyang.

Yang Guang let out a beast-like roar in the court: "Li Mi dares to go back on his word and openly rebel against the court? Hum!

"Spread my instructions and tell the world that if anyone is attached to Li Mi and Wagangzhai, I will punish him for the nine clans.

"Wang Shichong was promoted to the marching marshal and led 100,000 elite soldiers to Luokou to conquer the Wagang rebels.

"Gather the military and civilians near Luokou and fully cooperate with the imperial court to suppress the Wagang rebels."

As soon as he heard that there was a rebellion, Yang Yichen immediately came to his senses, and immediately issued a request: "Your Majesty, please order to go with Marshal Wang to conquer." ”

He has commanded the army as a marshal for decades, and this time he is willing to succumb to Wang Shichong, all because he has been embarrassed as an official in Luoyang in the past few months, which is not the life he wants.

What he wants is a life of Jin Ge Iron Horse galloping on the battlefield, not a life of intrigue and treacherous officialdom.

During this time, he felt that he was depressed and unwilling, and he was about to become a deep resentful woman, and if he didn't find an outlet, he would end up depressed.

Yang Guang saw that it was Yang Yichen who asked for his life, so he refused without thinking: "Yang Aiqing is unwell, it is better to recuperate in Luoyang." ”