Li Yi talked to Guo Ziyi about the principle of hot air balloons while eating.

Guo Ziyi nodded from time to time, the lamp could fly, and he knew that if the lamp was put on the fifteenth day of the first lunar month, rich people would make it.

"There is no rope to tie it, the hot air balloon flies upwards, and when the wind above it is high enough to blow this way, it blows higher and then it blows that way."

Li Yi gestured, he couldn't say the specific height.

"It's windy, there's a rope tied to it, and the balloon can't fly out, it will shake." Guo Ziyi followed Li Yi's words and pointed out the drawbacks.

"The wind is strong, you still want to fly? When you are downwind, you should choose to run, and when you are upwind, you should be ready to attack. Li Yi looked at Guo Ziyi helplessly.

Guo Ziyi smiled: "I don't know when it will be made?" ”

"The glass telescope has been made, come back to Zhuangzi with me tomorrow and give it to you Yulin Feiqi. Balloon...... Three days. ”

Li Yi considered the ability of the craftsmen on the Zhuangzi and the requirements of the hot air balloon, and gave three days.

There is no fuel, you can use alcohol, and blowtorches are easy to make.

The cloth of the hot air balloon is selected to be sturdy, and the tung oil is brushed on it.

Guo Ziyi asked some more about how she felt flying in the sky, and after eating for half an hour, the two went back to sleep separately.

Li Yi solved a 'big thing', relaxed, lay down and fell asleep.

Guo Ziyi couldn't sleep, thinking about today's events, thinking about the hot air balloon taking people to the sky.

Before today, someone told him that man could fly to the sky, but he absolutely did not believe it.

Seeing Li Yi flying around, he knew that Li Yi had good things.

"It's awesome to make a bunch of hot air balloons, and people shoot them down with bows and arrows."

Guo Ziyi's military talent is not ordinary, and he soon began to think about how to maximize the role of hot air balloons.

When defending the city, the enemy ants are attached to the siege city, and there is only one line on the wall that can hit the enemy.

Hot air balloons have been raised in the city, and the height has been pulled again, and the enemy building cars are no longer so difficult to deal with.

The walls were five feet high, and the besieging enemies would bring out shelves made of wood six feet high.

There are wheels under the shelves, and there are people pushing them inside and behind them, and when they reach a certain distance from the city wall, they shoot arrows at the people on the city wall.

Once they get closer, the gangplank is set up, and there are ladders inside, and the soldiers continue to go up from the building car.

This kind of siege equipment is troublesome to make, but the effect is remarkable.

Combined with other long ladders with wheels, as well as simple ladders with hooks in front, it was too stressful for the defenders of the city.

With a hot air balloon, a piece flies, no matter how high the building car is, can it be higher than flying in the sky?

If the wind is good, the hot air balloon can poke out, pour fire oil on it, and ignite it.

After thinking about defending the city, and then thinking about attacking the city, Guo Ziyi laughed.

He found that it was easiest to hit someone else's city with a hot air balloon, which was twenty or thirty feet higher.

Send arrows at the city walls, and the soldiers on the walls are immediately suppressed.

Shooting arrows from the city walls, ordinary bows and crossbows can't fly up.

"Find a place with water, first train the Yulin Flying Horse archery on a small boat, and the bump on the horse is not the same as a hot air balloon."

Guo Ziyi said to himself, he is very good at riding and shooting, and when he took the martial arts test, others could hit six arrows with ten arrows, and he was rated as first-class.

As he rode and shot, the horse ran from one end to the other, and each of the ten targets hit the bull's-eye.

When others watch him perform once, they don't want to have fun.

Guo Ziyi, who was full of hot air balloons, didn't know when she fell asleep.

When the cry of the Xu family's children came out, the people in the Xu family's house got up one after another, listened happily, and soon the sound disappeared again.

Old man Xu ate an extra bun for breakfast, put down the chopsticks and went to see the child.

Xun'er changed the environment, slightly uncomfortable, always wanted to find someone he was familiar with, and wanted to cry.

But with a younger brother, he quickly forgot about the others.

He could walk a few steps and trot, and he stood there screaming and encouraging his brother to run with him.

Qian'er was really anxious, he held on to the bamboo pole that was erected horizontally, and tried to let go again and again.

Taking two steps out, he couldn't control his balance, unlike an adult falling, he bent his two calves and sat vertically on the ground.

A group of adults were there watching and cheering up.

When the elder brother ran over to help the younger brother, and then sat on the ground together.

The laughter of the entire Xu family suddenly increased, and the steward sent someone to buy meat, and from today onwards, everyone no longer needs to be vegetarian.

There were people from the Xu family over there pushing the wall, knocking down all the walls next to the Drunken Immortal Residence.

Let Guan Xiaotan see where it is appropriate to dig a ditch to divert water, and when the diversion canal is dug and the water is diverted, then consider how to repair it.

At about ten o'clock in the morning, Li Yi appeared.

The old woman was invited to Zhuangzi for further examination to see if she needed medication or surgery.

He didn't go to see the child, for fear that he would ask to go back with him if he saw it.

At noon, the team returned to Zhuangzi and began to arrange which positions to monitor the head.

It's magical, and it works all the way up day and night.

The farmers discussed putting a place where they felt dangerous, and no lanterns would be hung at night.

Some people think that the place is dark, and from there, it is just right to clean up.

Li Yi was not in a hurry to eat, so he took the old woman to check first.

"In your case, I suggest taking local injections to relieve the situation, and then use acupuncture and local heating to maintain the ......."

Li Yi introduced the situation to the old woman and asked if the other party agreed.

The old woman didn't have a choice, of course she agreed.

So Li Yi prepared the medicine for the old woman, and then injected it in, it hurt when she was injected, but it soon didn't hurt, and there was anesthetic medicine in it.

Less than half an hour after the injection, the old woman's legs moved, revealing a happy look: "Divine doctor, it doesn't hurt so much." ”

"Don't do strenuous exercise now, continue to rest, keep your knees warm, and don't live too close to water.

I have seen your Zhuangzi, it is indeed very beautiful, and there are many ponds. But water vapor is also heavy, which has a direct impact on your condition.

Go back and see the situation, if you don't feel well for two days, you can stick to it, and if there is redness and swelling on the third day, you should come over immediately.

If there are no other problems, I will review Zhuangzi after ten years, and if necessary, chase a needle.

This acupuncture treats the symptoms but not the root cause, and it still relies on acupuncture and massage for long-term palliative treatment......"

Li Yi continued to give medical advice, listened to the Xu family who came with the old woman, and remembered it carefully.

What cloudy days, rainy days, when the humidity is heavy, you can put plasters, usually bask in the sun, in winter, you should wrap a circle of fur, build a fire kang, and so on.

Turning his head, Li Yi was waiting for the old woman to adapt and at the same time observing the situation after the medication, and talked about the future of the Xu family.

The Xu family provides water sources and naturally enjoys some treatment.

For example, if you open an opening from Xu's house, you can go directly to the drunken immortal residence, and if the water output of the spring is large, you can even put a small boat.

What he said made the Xu family happy, and they said a few more words.

Li Yi smiled: "Okay, when the time comes, take two steps and take a look, but don't walk too much, you have to raise it." ”

He's been wasting his time saying interesting things to distract everyone.

"You're a miracle doctor, and you have a good heart." The old woman understood instantly, and she boasted to her feet and took a few steps.

"It's much better, it's a little uncomfortable, and I can't stand the pain when I don't move before." The old woman smiled.

At this time, it was already past the hour, and everyone went to eat together.

After eating, the Xu family wanted to escort the old woman back.

Li Yi took a lot of small toys that the children were playing with on the Zhuangzi and gave them to take away with them.