In the palace, Li Longji, who was waiting to get off work, was listening to Guo Ziyi's report.
"People appeared one after another. They were all flying in the sky. Later, Li Dongzhu flew over and fought with those people …"
Guo Ziyi told him what he had seen and heard.
Li Longji listened with wide eyes. There was something that could detect the Winged Knights at night? Li Yi could fly in the sky?
Wang Xing and the others always dug up other people's graves and sent them to Li Yi for treatment?
That child was actually the great-grandson of the Xu family who had died?
"Okay, I'll ask right away." Li Longji didn't want to wait any longer. He wanted to leave now and stop looking for women.
"Your Majesty, there's still the hot air balloon. It's said that it will come out in three days," Guo Ziyi reminded.
"There's no need to worry about that. Li Yi said that he can do it, so he will definitely do it." Li Longji threw down this sentence and left.
Li Longji went to the workshop and found Li Yi.
Li Yi stood in front of a large blackboard and explained the hot air balloon's principles, structure, layout, and required materials to the craftsmen.
"There has to be a bracket here. Otherwise, it will burn the cloth when it's lit.
The balance of the hanging basket is the most important. You can add a pendant below.
Sandbags should be placed in the basket. They have to be small and can be placed on the edge of the basket to adjust the balance.
The basket can't be made of metal unless we develop a good alloy in the future.
For the alcohol burner, the seal is the key. Press the air in and drive the alcohol out to burn … "
The craftsmen listened carefully. At the same time, they were thinking about how to make it and which part was the most difficult.
Li Longji stood at the door and listened together. He could understand a small part of it. As for how to make it, it was not up to him.
As he listened, a smile appeared at the corner of his mouth. He realized that with Li Yi around, many technical problems were not a problem.
It seemed that as long as Li Yi wanted to make something, he would definitely make it.
This hot air balloon was a good thing that could take people to the sky. Admiring the things on the ground from the sky was one of its functions.
Its most important function was in war. When the conditions were right, there would be siege towers for people to go up and observe the surrounding enemy situation.
The siege towers were too big, and many terrains were not suitable for transportation. Even if they were to disassemble and reassemble them, it would be troublesome.
Looking at the appearance of the hot air balloon, it was a big bag. After it was opened and ignited, it turned into a big ball.
If this thing flew a few miles high, wouldn't it be the same as standing on a mountain and looking at the enemy?
Li Yi continued to explain.
"Rope, we can't use thick hemp rope anymore. Spend more money and use silk. Silk is strong and light.
Instead of using a thick hemp rope, the hot air balloon still needed to be towed after it rose, and the weight of the hemp rope would delay things.
It's also easy for the hemp rope to be blown by the wind and cause the hot air balloon to become unstable. It's very dangerous … "
Li Longji stood there and nodded. That's right, hemp rope is not good. Silk, it doesn't matter if it's expensive or not.
In a war, as long as one could use money to form a soldier class to suppress the enemy, which one of them didn't use money to do so?
When it was almost time for dinner, Li Yi finally finished.
The craftsmen immediately went to eat. When they came back, they had to work overtime to study the hot air balloon.
Of course, they had to take turns to rest. Li Yi didn't want the craftsmen to be too tired.
"Brother Yi, with this hot air balloon, our Tang dynasty's soldiers can have fewer casualties.
Even a hot air balloon could accidentally fall down by itself, or be shot down by the wind when it lowered its altitude.
But it can cause more damage to the enemy. It's worth it. "
Li Longji thought that the hot air balloon wasn't really invincible, but so what?
100 hot air balloons could form an army and kill 10,000 enemies. 100 hot air balloons were all destroyed and the Non-commissioned Officer on them were all dead. It was worth it.
"The operation is the most dangerous, especially the wind.
In a war, if you want to use ballistae to shoot a small dot flying in the sky, you can only do so if you have a concentrated ballista formation.
Moreover, that formation requires the left and right positions to adjust the angle in advance and ensure the accuracy of the arrows. "
Li Yi shook his head and explained the situation of using large ballistae to shoot a hot air balloon more than a thousand meters high.
When the hot air balloon is above, you don't need to aim to shoot arrows into the crowd.
Shoot from below, look up and see a small dot. How do you aim?
"How can the enemy target the hot air balloon? Charge at the formation? Rush over and grab the rope?
I believe that if the formation is about to be broken, our soldiers will take the initiative to cut the rope.
Or the people above cut the rope from the other end. It's impossible for the enemy to catch it. "
Li Longji quickly thought of the situation and felt that the enemy charging at the formation was the most stupid thing to do.
"Only the hot air balloon can compete with the hot air balloon." Li Yi said a classic sentence.
He already knew that only the tank can fight against the tank, and only the sniper can fight against the sniper.
The two of them came to the cafeteria. Empress Wang was already sitting down. She didn't make any extra requests today, but she didn't have any appetite.
"Brother Yi, if the enemy gets the hot air balloon that fell, will it be easy to imitate it?"
Li Longji asked after he sat down and served himself his favorite dishes.
"Spheres and baskets are easy and not difficult. The fuel is the problem. We have alcohol and a blowtorch.
The blowtorch can adjust the size of the flame and control the flying height of the hot air balloon.
You can't burn coal to start a fire. If you burn firewood, the continuous fire of firewood is different.
You can't add firewood and remove firewood, right? Alchemical fire oil is easier to burn, but with their technology, they can't control the fire of the alchemical fire oil. "
Li Yi knew that there was something that could provide enough heat value: oil.
Some places have oil on the ground and people will use it to start a fire.
"Uncle is right. Their technology is not good. Their craftsmen took something that you specially researched and can't imitate it."
Empress Wang didn't know what the hot air balloon was. She only supported the theory that Zhuangzi's technology was good.
Li Longji was completely relieved. He thought for a while and whispered: "Brother Yi, I heard that you can fly?"
"The things used and the monitoring devices are the same as the ones in my hospital. At a critical moment, it can carry a person with it. It can't fly for too long."
Li Yi told him what was going on without hesitation.
"Oh, good. It's good that you can carry a person." Li Longji nodded and didn't say anything else.
For the next three days, nothing unexpected happened. Old Lady Xu also didn't come. Obviously, there was no problem with the sealing needles.
On the morning of April 16th, the hot air balloon was about to come out.
Everyone was ready to witness a miracle.
Empress Wang also wanted to see it. She stood there with her belly protruding.
Everything was ready.
"Ouch, my stomach hurts. I can't take it anymore." Empress Wang suddenly shouted.
"Stop. Go to the delivery room. The midwife is in place." Li Yi shouted.
Qing Song and Ge Yan immediately helped Empress Wang lie down on the cart beside them. The palace maids followed suit.
Empress Wang was sent to the delivery room. Li Yi changed his clothes and prepared for the most critical moment.
"Zhuangzi, line up for all O-type blood. The nurses will draw blood. I want to send it over for processing and storage."
Li Yi ordered while changing his clothes. Empress Wang was O-type blood. He was used to calling her that.
He was most worried about special situations. He was afraid that he couldn't handle it alone.
It required support and treatment. There must be people in every position. Then, a large amount of plasma would be used to dilute the amniotic fluid in the blood.
If it wasn't this situation, it would still be troublesome.
The villagers were busy. One of the eunuchs and palace maids ran out and said a few words to someone outside. The person outside rode on a horse and rushed to the palace.
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