These days, the battle between the Five Cities Soldiers and Horses and the Jinyi Guard is in full swing, and there are often bloodsheds, but every time Xu Yuan handles it perfectly.

When Chen Kan saw this, he completely delegated power to him.

Zhu Di's original intention of asking Chen Kan to establish the Five Cities Terracotta Division was to clamp down on the Jinyi Guard, and the two departments supervised hundreds of officials at the same time.

When there is a conflict between Jinyiwei and Baiguan, the soldiers and horses of the five cities will jump out and sing white faces to save the innocent officials who fell into the hands of Jinyiwei.

Now that the Five Cities Terracotta Division is gradually on the right track, Chen Kan will no longer interfere too much.

Now, he plays more of the role of the boss behind the scenes of the Five Cities Terracotta Division, and his main task is to rely on his own connections to deal with the Sixth Department and Zhu Di.

The day-to-day management of the Five Cities Terracotta Division is all in charge of Xu Yuan.

On the fifteenth day of the lunar month, in the depths of winter, the northern country is already a scene of thousands of miles of ice and snow.

Jiangnan has also officially entered winter.

Although there is no snow, freezing on the lake is not uncommon.

coincided with the rest of the country's prison, and Chen Kan set the day of the first flight of the hot air balloon today.

The jubilant Chen Mansion hung red lanterns everywhere and pasted the words "happiness" cut out of red paper.

Anyone who comes to see it knows that the happy event of the Chen Mansion is coming.

A thin layer of crushed ice formed on the small lake that was brought in from the Qinhuai River.

Chen Kan stood on the edge of the small lake in a fox fur, accompanied by Yun Cheng, and behind the two were many people from the Chen Mansion who were busy.

To make a hot air balloon, Chen Kan's real contribution was only to draw a drawing, and the entire sewing of the hot air balloon was completed by the craftsmen invited by the eighteen squares led by the people of Fuzhong.

Now, they will also assemble it against the drawings.

Chen Kan let them play for themselves, he exhaled into the palm of his hand, then crouched down and picked up a thin piece of crushed ice from the lake.

He put the crushed ice in his mouth, and a moment later, he heard "Click... Click...".

"This ghost weather is getting colder and colder, and it is the first time that the villain has lived for so many years to see the water surface of the Qinhuai River frozen."

Yun Cheng sighed a little, as a native of Jiangnan, he grew up in a warm climate environment since he was a child.

Living water freezes, and it is indeed rare to be tight.

Chen Kan wiped his hands on the fox fur and said lightly: "In a few years, it will not be strange that it will snow heavily in the south of the Yangtze River." ”

"Will it snow heavily in Gangnam?"

Yun Cheng was noncommittal to Chen Kan's words, he didn't refute it, but obviously he wouldn't agree with it.

Snow in the south of the Yangtze River is not uncommon, but most of it is delicate light snow, usually the first day and the next day, like the situation in the north, where the snow has been falling for several months, it is impossible to make a decision.

Chen Kan saw that he didn't believe it, and he didn't say much.

Later historians have pushed the beginning of the Xiaoice River period from the Ming Dynasty to the Southern Song Dynasty, as evidenced by the Mongol people's southward movement.

But in fact, the cold climate really affected the Central Plains Dynasty from the Xuande period of the Ming Dynasty.

Since the beginning of the Xuande period, the Ming Dynasty has had a major drought and flood weather year after year, and in the Jiajing period of the Ming Dynasty, even the Dongting Lake has a foot thick ice.

The small rivers and rivers in Jiangsu and Zhejiang are frozen as a whole, and people walk on the rivers as if they are walking on the ground.

And this situation will continue until the Qianlong period of the Qing Dynasty, and these things are clearly recorded in the history books.

The thin layer of ice above the small lake in front of you is just the beginning.

Seeing the hot air balloon assembled and formed, Chen Kan no longer thought about those messy things.

It's useless to think about it, it's just to add trouble, after all, things like the Xiaoice River natural disaster cannot be changed by manpower, even if he is a traverser.

Chen Kan paced to the front of the soft hot air balloon, and saw that there was a huge happy word on the hot air balloon, and the corners of his mouth unconsciously smiled.

The subordinates of the Chen Mansion were very creative, not only painted the color of the entire hot air balloon red, but also painted many festive patterns on the ball, such as bats and the like.

Although the shape of the balloon is not as exquisite as that of later generations, Chen Kan is still very satisfied.

"Childe."

"The hot air balloon has been assembled, do you need to try the effect?"

"Of course you have to try!"

Facing the craftsman's inquiry, Chen Kan couldn't help but show a foolish look.

This is something used to marry a daughter-in-law, if you don't try the effect, what if you make trouble at that time?

"Ignition!"

Chen Kan gave an order, and the subordinates of the Chen Mansion hurriedly used various tools to prop up the huge sphere.

The frame under the balloon used to carry people is made of thin bamboo strips to reduce gravity.

The fuel is tempered by Chen Kan distillation and purified oil, and it is also equipped with a small blower box, which is afraid that the heat generated by the fire is too small.

The fuel was ignited, and the fiery serpent seemed to be about to choose someone to eat.

The flames rushed into the sphere, and I saw that the originally deflated sphere slowly bulged.

In less than a stick of incense, a huge sphere began to sway into the air in the backyard of the Chen Mansion, if it weren't for the bamboo basket in advance to place a lot of sandbags to increase the weight, I am afraid that it would have left the ground long ago.

The eyes of the people were wide open as they looked at the huge sphere suspended in mid-air.

This big guy was actually sewn by them?

Incredible!

Yun Cheng, who was standing next to Chen Kan, was also a little stunned.

When Chen Kan talked to him about the hot air balloon, he only told him that it was a large Kong Ming lantern, but ...... That's ridiculously big, isn't it?

He asked a little suspiciously: "Childe, are you sure that this thing can carry people into the sky and will not fly away in a puff of smoke?" ”

Chen Kan said nonchalantly: "There is a traction rope, what are you afraid of!" ”

The principle of hot air balloon is no different from that of Kong Ming lantern, which is the use of the physical principle of thermal expansion and contraction, and the specific gravity becomes lighter and rises upward by heating the air.

In later generations, anyone who has studied physics in junior high school can make it.

Therefore, looking at the primitive and rugged version of the hot air balloon in front of him, Chen Kan did not have any sense of accomplishment at all.

But in Daming, such a large volume of Kong Ming lanterns is still very bluffing.

At least Yun Cheng and the other Chen Mansion people looked at Chen Kan, and there was a shocking shock in their eyes.

It's just that this young son is in a high position at a young age, and Princess Ou is no problem, but how did he come up with something like a hot air balloon?

Kong Ming lanterns have been popular on the land of China for thousands of years, why has no one thought of magnifying Kong Ming lanterns a thousand times and ten thousand times to carry people?

Now no one doubts that this large Kong Ming lantern can fly, they are only curious about how their son's brain grows.

Why can't they think of it?

"It's okay, take it!"

Chen Kan took the adoring eyes of his subordinates one by one, and then opened the bamboo door of the bamboo basket and walked in.