Li Chengqian just closed his eyes and thought for a while, then opened his eyes. When constructing an image in your mind, there is always a lack of ideas, and drawing is the best choice to realize all your ideas.

Stretching out his hand to cover up Niu Jianhu's injured foot, Li Chengqian said seriously: "Brother Niu, it's just that the foot is broken, it's nothing, and I'll study it with the master craftsman who will be the supervisor." Although it can't let you go into battle to kill the enemy again, it's still okay to walk like a fly. ”

Hearing the prince's words, the old cow laughed, and Mrs. Niu only felt that her steps were vain, and she almost fell. Niu Jianhu didn't care about the rudeness, reached out and grabbed Li Chengqian's placket and asked repeatedly: "You didn't lie to me?" Can I still walk? Can I still run? ”

Lao Niu frowned and broke the child's hand, and said sharply: "His Royal Highness the Crown Prince can still lie to you!" Boy, in a few moments, the old man will ask His Majesty for grace and send you to the East Palace. The prince wants to practice martial arts with the old man, and you kid has to follow too! After all these years of decadence in the house, look at you, how can you still look like a tiger! ”

As long as he could stand up, Niu Jianhu didn't care about anything, and threw himself to the ground as soon as he pounced forward, hugging his father's leg and crying.

The old cow squatted down, holding the cow and seeing the tiger, the old tears were horizontal. Mrs. Niu couldn't help but kneel on the ground, and the family of three struggled to recover for a long time.

Without disturbing the family to vent, Li Chengqian followed Li Jing out of the room.

I can't eat at noon, and I finally see the old cow whose child is expected to stand up, I'm afraid that after he recovers, he will go to the palace to see the emperor and finalize this matter.

After walking out of the Niu Mansion and getting into the carriage, Li Jing couldn't help but be curious, and asked Li Chengqian: "His Royal Highness the Prince, are you really going to build a foot for Niu Jianhu?" This is not a means that medical skills can explain! ”

Knowing that this person is easy to think crookedly, Li Chengqian explained with a smile: "It's okay if others think so, but if you think so, it's not right." It's a good foot building, but I'm going to build a prosthetic leg. There are many begging disabled people in Chang'an, and those with broken legs are connected with a wooden stick, so that they can balance their feet, and although they have broken legs, they can still walk.

It's the same with making feet for cattle and tigers now. It's just that the dignified will be a prisoner, and it is absolutely impossible to be so simple. I'm going to make an iron foot, and when I put on my boots, as long as no one goes up and steps on it, or if I see the tiger himself, no one else will see that he is disabled. ”

With Li Chengqian's explanation, Li Jing understood.

Indeed, with the craftsmanship of the prisoner, it is not a problem to build an iron foot.

"It's just that such iron feet only allow Niu Jianhu to stand up, and it is a bit impossible to say that walking is like flying, or even running."

Although Li Jing is a smart person, it is still a bit difficult to explain to him without anything.

With a slight smile, Li Chengqian ended the topic: "What does the specific iron foot look like, when it is completed another day, you can come and see it." ”

The carriage belonged to the East Palace, so after sending Li Jing home, Li Chengqian returned directly to the East Palace, and also called Yan Lide, Yan Liben, and the master craftsman of the general prison organ to the East Palace.

There is no market for prosthetics yet, so whether it is an idea or a drawing, you have to start from scratch.

Fortunately, Yan Lide, Yan Liben, and the master craftsman who will be the supervisor are not ordinary people, although this idea can be called fanciful, but under Li Chengqian's continuous explanation, they still drew a sketch.

Stretching out his hand and pointing at the bone joint of the prosthesis, Li Chengqian said seriously: "It's not a problem anywhere else, the most important thing is this joint, if you want to make people wearing prostheses behave like normal people, this part of the heel and calf must be movable, and the range of motion must be limited." This is up to us to run and try on our own. The quality of the spring must also be guaranteed, and the quality of the spring you made by the wire drawing method before is really poor. ”

Yan Liben smiled bitterly and said: "Okay, my prince, what you want is iron wire, just this wire drawing method, or we used ploughing cattle to make it." You can't look at the springs made of iron sheets, but they are just used in wheelchairs. In this case, the prosthesis had to be made with a strong enough spring. You must not be able to look at the wire we made, tsk, the workload this time is not ordinary. ”

Although the ideas proposed by the prince are often very exciting, they have suffered a lot for the actual operation. When I think about the difficulty of making iron wire by the wire drawing method, the craftsmen can't help but smile bitterly.

It's not that I can't stand it, it's just that it was too much of a toss-up.

Seeing the worried looks of these skilled craftsmen, Li Chengqian couldn't help but sigh, in Datang, it was so hard to want wire. The primitive forging industry has not been developed because blacksmiths are not valued.

Perhaps, the absence of hydraulic hammers is also one of the reasons?

However, there was no time to consider the reason for the hydraulic hammer, and Li Chengqian was slightly relieved after the craftsmen repeatedly assured that they would soon be able to build a model for experimentation.

If he guessed correctly, Lao Niu must have seen his emperor father by now, right?

Harem - Wangyun Pavilion

Today's Li Shimin is also rare and leisurely, and he actually has time to fish in the pavilion. Starting.. ..

When he heard Niu Jinda's request to see, he summoned him without hesitation.

Niu Jinda is different from other courtiers, as long as he returns to Chang'an, he will be very low-key, and he rarely appears unless it is an indispensable occasion such as a large court meeting.

Knowing that this general likes to be low-key and has no ambition to expand the family, Li Shimin still prefers Niu Jinda.

Soon, Niu Jinda, who was wearing armor, walked in, and the traces of knives and axes on the armor were clearly recognizable, and even the rust was not cleaned much.

Seeing this armor, Li Shimin immediately put down the fishing rod in his hand, stood up and waited for Niu Jinda to speak.

Unlike the usual armor, the generals who went out to the army were more attentive to the maintenance of the armor than to raise children, and put on the devastated and rusty armor, generally pleading with the emperor for something, and these rusts and sores represented their own merits.

Seeing the emperor, Niu Jinda knelt on one knee: "The last general Niu Xiu, meet Your Majesty!" ”

Li Shimin took two steps forward and wanted to pick up Niu Jinda, and said, "Aiqing, please get up quickly, why did you come to see me in this dress today?" But what is there to ask for? No matter what, Aiqing just told me. ”

Niu Jinda did not get up, but continued: "The last general is ashamed, today's dress is to beg His Majesty to allow the dog to live in the East Palace. The prince came to the mansion earlier, wanting to learn boxing and kick kung fu from the last general, and at the same time, His Royal Highness also found a way to cure the dogs...."

After listening to Niu Jinda's words, Li Shimin was surprised and didn't know what to say.

Foot building?