Li Shimin instructed to make Chang'an City lively.

The attendant bowed and obeyed: "Yes." ”

"Also, the New Year's sacrifice to heaven and earth has to find a good excuse to postpone it, or not to sacrifice this year."

Li Shimin was helpless to give such an order, all the important ministers in Shangshu Province, except for Du Ruhui who was still in Chang'an, the rest of the people were all in Datang.

Among the important ministers of the cabinet, only one person from the Criminal Department is in Chang'an.

Let's talk about the six departments, the six departments are currently relying on a squire and officials from the headquarters to support the normal operation of the Tang Dynasty's court, and the rest of the people either want to go to war, or in the name of working overtime for logistics, they want to participate in this war against Goguryeo.

The generals of Chang'an City, except for Dugu Xiude, who couldn't move to guard Chang'an, ran all the people who could run.

On Chinese New Year's Eve, the palace was exceptionally quiet.

Li Shimin began to urge: "Tell me to go down, let the palace people have a good time, and support the atmosphere of the New Year in Taiji Palace." Tell everyone, don't speculate, don't talk too much, it's about my Tang Dynasty's national fortune, whoever has a lot of trouble will be killed. ”

The attendants went down and made arrangements.

This can be regarded as a chance for everyone in the Tai Chi Palace to relax.

Liu Mu arrived, and invited Li Shimin, the empress, and the fourth lady to go to him for Chinese New Year's Eve.

"Your house is deserted."

Liu Mu replied: "The eldest sister is in the West Wing State, the second sister is in the Mediterranean, and the third, fourth, and fifth sisters are all in Africa. Maybe it's possible that this will go to the West Wing State for the New Year, it's hard to say, it's too far away to know the news, and it's not convenient to contact. What's more, tonight is Chinese New Year's Eve, and they can't come to me even if they are in Chang'an. ”

Li Shimin had already given orders, and Liu Mu came to greet him and left. It also let everyone in the Tai Chi Palace relax, and the people in the palace don't have the courage to really carnival once.

Liu Mu lived in the original East Palace, and the new palace was in the state of digging the foundation, and it would be repaired at least three or five years later.

Li Shimin does not plan to use too many manpower and resources.

In Li Shimin's mind, manpower and resources should be spent on building railways and bridges, not on building the imperial palace.

When he walked back, Liu Mu complained: "Ma Zhou ran away, taking half of the elite of Wenyue Pavilion to the north, if it weren't for the regulations that must leave enough Chang'an garrison force, it is estimated that all the people of Wenyue Pavilion would be able to run away." I don't know why they were so excited, and said that this time there was no merit. ”

"Seventy and a half of the important ministers of Chang'an City have run north, and the older they are, the more they don't want to miss it. The second brother has long said that this is a ceremony, not a war. ”

Liu Mu looked at the moon and lit himself with a pipe: "Second brother, there are still forty-seven days, according to the calculation of Yanzhou Donggang, the sea ice will no longer affect the ship after forty-four days, and there will be a southwest wind after forty-seven days." ”

"Where's the airship?" Li Shimin is concerned about airships.

A hint of joy appeared on Liu Mu's face: "If it goes well, there will be fourteen more days for the first test flight." ”

"Good!" Li Shimin is happy.

Liu Mu persuaded: "Second brother, this thing is not safe. This is just the first one, and there are some places that can be made better, but the schedule is too tight. Moreover, hydrogen is a very explosive gas, so the airship must fly for at least 5,000 hours, and after several improvements, after ten years, the second brother can take it. ”

Although Li Shimin knew very well, the airship itself would definitely not even be able to get close.

Once the hundred officials learned that it was flying with a huge bomb, they would definitely die, and they would definitely not let themselves get close to the airship.

"It's a pity."

After Li Shimin finished speaking, he pointed to the willow wood: "You can't ride either." ”

Liu Mu was not as excited as Li Shimin, and he didn't care much about the airship Liu Mu, so he said very plainly: "I didn't plan to take it, if I take it, Lan Ruo will definitely be worried." ”

Liu Mu's words Li Shimin was speechless.

Liu Mushuang said: "It's not as terrible as I imagined, but if I fly a hundred times in case there is an accident at that time, it's hard to say." ”

"Is it really dangerous?" There was a hint of nervousness on Li Shimin's face.

"It's not serious, it's true. Because the technology is not mature, according to my assumption, this airship will take at least five years of technical precipitation and accumulation, so to speak, at present, countless are the quality of steel, or the formula of special steel, the production of airbags, and rubber. Especially rubber. ”

The word rubber has been mentioned many times by Li Shimin.

Li Shimin asked Liu Mu: "Can't you really find a rubber tree?" ”

"Yes, about 50,000 miles to the east, you can find it there. In fact, the safe airship uses an aluminum alloy frame, uses safe helium, and is powered by batteries and internal combustion engines. ”

After Liu Mu explained, Li Shimin counted them with his fingers one by one.

In fact, it is impossible to complete that article in a few decades, and oil alone is enough for Datang to study slowly for more than twenty or thirty years.

"It seems that airships can only be used as a deterrent weapon, and Datang can't have only one."

Li Shimin's ideas may be ordinary in later generations, but in this era, they can only be said to be very genius.

Li Shimin asked Liu Mu again: "What will happen if there is an accident?" ”

What will happen?

Yanagi didn't know how to answer for a while.

Li Shimin didn't ask, and kept waiting for Liu Mu to think.

When he walked back to the garden in front of Liumu's mansion, he said: "I remember a very famous boat, first of all, although this boat also uses a lot of hydrogen, it is a hard shell, and it is an aluminum frame. ”

"Yes!" Li Shimin nodded.

Yanagi continued: "The ship was called the Hindenburg, and it probably flew for five years after it was built, and the year before the accident, the airship seemed to have completed almost twenty transatlantic flights. ”

"The 5,000-mile-wide continent of Europe to the New World."

"Yes. It takes six days and six nights to make a round trip. Yanagi added.

Li Shimin was very happy to hear this data: "This speed is quite fast, flying out of a distance of 10,000 miles in six days and six nights, good." ”

"There seems to be someone who has studied the accident on this boat. I remember that the thunder and lightning and the torrential rain ignited the hydrogen and burned to ashes in the air in about 30 seconds. ”

After listening to this, Li Shimin immediately made a decision: "Flying is not allowed in thunderstorms, so it will be safer." ”

Yanagi said to himself: "I remember that there is a study that said that if the material of the skin is not easy to burn, then even if it catches fire, it is not fatal. It's so professional, I've only heard of it, and I don't know much about it. A technological progress may be made on the basis of countless sacrifices and failures, and no one is perfect. ”

"It makes sense."