What?

I'm afraid that only Liu Mu can tell what this thing is at a glance.

Looking at the smug smile on Liu Mu's face, Li Shimin suddenly felt very angry.

"What?" Li Shimin asked again.

"Second brother, go this way."

Liu Mu took Li Shimin to a house on the hillside, this is Liu Mu's house, which is usually not used, but some important information will be stored here.

Not in the house, but behind the bookshelf against the hill there was a passage that connected to a cave.

All the materials are kept in the cave.

After entering the cave, Liu Mu took out a model about one foot and five inches long: "Second brother, this thing is just trying at the moment, I expect it will take five years to build it, and it will take seven years to really use it." ”

"What is it?" Li Shimin couldn't understand the model on Liu Mu's hand at all.

"Toys!"

"Toy !!" Li Shimin roared.

The eldest grandson Wujian also smiled on the side, how could there be toys in the Huayuan Forbidden Zone, the annual research funding here is astronomical.

Yanagi held up the model: "As I thought, many people have spent two years designing it. It is estimated that it can carry about 800 stones, fly at an altitude of about 3,000 feet, fly at full speed of 1,600 miles per hour, and cruise at about 1,000 miles per hour. ”

"What did you just say?" Li Shimin suspected that he had misheard, and asked in particular: "Flying?" ”

"That's right, it's flying, this is an object that can fly in the air for a long time, when the time comes, I can accompany Lan Ruo to travel around the Tang Dynasty, from Chang'an to Hangzhou is half a day, flying to Fusang's Kagoshima is a day, flying to Luzon is estimated to be a little difficult, but you can supply in Guangzhou City......"

Liu Mu was still making his own travel plans, and Li Shimin snatched the model from Liu Mu's hand and held it carefully.

"You can get to Fuso in one day? If you take off in Laiju and carry 3,000 incendiary bombs, a single attack can reduce the royal city of Goguryeo to ashes. A large catapult with an incendiary bomb weighs six pounds, hahaha! Li Shimin looked up to the sky with a big pen.

"Second brother, is this a weapon of war. The first one was only for experiments, and the full version of the Sky Fortress could fly to Rome in one go, contributing to our cultural exchange with the Mediterranean. ”

"Jokes, such a sharp weapon, is naturally an important weapon of the country." Li Shimin happily held the model and didn't know what was going on in his head, and it was estimated that he was already thinking about equipping the military department to make the Sky Fortress the ultimate guardian weapon of the Tang Dynasty.

Liu Mu also sat aside: "Imperial sister-in-law, you can see that the imperial brother first thinks of turning all objects into war supplies, and this object is indeed ......"

"For war." Dugu Lanruo interrupted Liu Mu's words on the side.

Without waiting for Liu Mu to refute, Dugu Lanruo said to the eldest grandson Wujian: "My Jiamu has written a book, and the title of the book is all-weather mechanized combat on land, sea and air. The ultimate weapon of war is not coal, but fire oil oozing from the ground, and iron oxen are not used for plowing fields, but are equipped with general cannons for land charge. ”

Liu Mu scolded with a smile: "You...... Is it my mother-in-law, this betrays me. ”

The eldest grandson smiled without a smile: "Don't say Lan Ruo, but think about it yourself, if you have been away for two years, it can be said that you are instigating war every month." Going further, since your second brother did not ascend the throne, you have been constantly waging war with foreign countries, and if you want to say that the objects you have studied, it is estimated that only the fragrance wash has nothing to do with the war. ”

Li Shimin interjected and said: "No, the incense wash is actually a by-product of another object, the glycerin gunpowder that Huayuan gave to the military department is actually a variant of the incense wash, which is said by the three first-level Dan masters of the Qinghe Temple, it is a piece of incense wash without spices, and it only needs some ingenious means to turn it into a powerful explosive." ”

Yanagi didn't refute it, because soap can indeed be turned into a bomb, and there is more than one way.

Li Shimin said again: "There is a kind of second brother who wants Lan Ruo to say a word, Lan Ruo is your wife, but first of all, she is the princess of the Tang Dynasty." Also, there are no outsiders here, don't pretend in front of your own house, you either say that gunpowder is fireworks, and the second brother also admitted it back then, and now it's boring to say that again. ”

Liu Mu put away his smile: "Second brother, any kind of object." For example, a knife can be used as a tool for carving, cutting vegetables, or going to war. Tools depend on how people use them, my attitude is still the same, I Datang has never studied any objects used in war, just because of the war, so I happened to use some things. ”

Li Shimin thought for a moment and nodded slightly: "Yes." ”

Dugu Lan was puzzled: "Isn't it hypocritical to do this?" It's obviously used to kill people, so why bother to say it so brightly. ”

"No!" Li Shimin and Liu Mu spoke in unison.

Li Shimin opened his mouth to explain: "The second brother also misunderstood Mu before, but now it's right to think about it." Datang is a country that loves peace and loves the people, and we will not be reckless. ”

Liu Mu added on the side: "Of course, as the Heavenly Empire, we see the suffering of the people in various small states. As the superior kingdom of the Celestial Empire, Datang has the obligation to benefit the people of the world. The tribal leaders and nobles of the Six Edicts, they oppress the ordinary people, enslave the people, and drive the people to be bandits and thieves regardless of the kindness of the people, so the Tang Dynasty will crusade against the nobles of the Six Edicts for the states around the Six Edicts, as well as the people in the southwest of the Tang Dynasty, as well as the innocent people of the Six Edicts. ”

"This ......"

Dugu Lanruo was dumb in an instant, she had been married to Liu Mu for ten years, but she didn't expect that there would be such a theory.

If it were said by another person, Dugu Lanruo would definitely scold hypocrisy.

The eldest grandson Wujian clapped his hands lightly: "It's good, it's wonderful, those dull old courtiers in the Ministry of Rites are not flexible at all." ”

Li Shimin just laughed.

"So, what is this?" Eldest Sun Wujian asked, pointing to the model.

"The real name of this is the airship, the huge upper part is actually empty, it is filled with hydrogen, divided into thousands of small airbags, and it is uncertain at the moment that the upper part designed and manufactured by Huayuan can pull up multiple envelopes, so it is difficult to study and it costs a lot of money."

Liu Mu introduced some simple knowledge of airships to the three of them.

Then Liu Mu said: "Second brother, as I said, this is not a tool for war, of course, when you need an airship to the battlefield, its power is terrifying, especially when only our Tang Dynasty has conquered the sky, and other small states are still learning how to row boats." ”