Li Yun said solemnly: "Back to Your Majesty, this bridge is absolutely feasible, this bridge seems to be a chain bridge, but in fact it is the application of the arch bridge theory to the fullest. ”

"Huangkou Xiaoer, it's just nonsense, this is obviously a chain bridge and a beam bridge put together in a mess, and what's wrong with the arch bridge." A squire of the Ministry of Works rebuked angrily.

Li Yun smiled and said, "You naturally can't see the traces of the arch bridge when you look at it like this, but if you turn this bridge upside down!" ”

Li Yun did not continue, but lifted the model and turned it upside down, turning it into a copy of the arch bridge. The so-called Weishui Bridge is just an upside down arch bridge.

Li Yunlang said: "The arch bridge is strong and feasible is verified by thousands of years, this is naturally undoubted, and my husband's line has been immersed in this for thousands of years, to talk about the cognition of the arch bridge, it can be said that I am the other, Weishui Bridge with steel cable as the arch, hanging down a steel cable to lift the bridge body, it seems that the bridge body is extremely heavy, but the force is evenly spread on the steel cable, the theory of the arch bridge is applied in reverse, it can be said that it is ingenious, to the grass people, this bridge is theoretically feasible. ”

Xiangfu's lineage can be said to be unrivaled in the world in terms of arch bridges, one is Li Chun's Zhaozhou Bridge, and the other is Li Yun's Qujiang Arch Bridge, which can be said to have personally confirmed this.

"It's just theoretically possible, and it's ridiculous to say that the success or failure of this bridge is all tied to a small steel cable!" The waiter of the Ministry of Works sneered, which immediately attracted the laughter of many ministers.

Li Yun's face was suddenly flushed with excitement, and he wanted to refute but couldn't say anything.

"Ling Shilang, the steel cable you are talking about is not a small one, but a super strong steel cable composed of hundreds of high-strength steel wires, and this steel cable is three feet thick." I saw Merton step out proudly and relieve Li Yun.

Ling Shilang couldn't help but sneer: "Mohou can't help but take it for granted, you must know that the Wei River in the north of Chang'an City is more than a mile wide, so long, plus the weight of the bridge, how can it be borne by a mere steel cable." ”

The use of steel cables as a load-bearing force to build bridges had never seen such a ridiculous thing in his life in the Ministry of Works.

Mo Dun laughed and said: "Turning the impossible into possible, this is the magic of the Mo family's ink skills, and Mo once saw a sentence from the sages of the Mo family to encourage the younger generations in "The Secret Book of Mozi", and Mo also asked you for advice. ”

Li Yun on the side of "Mozi's Secret Book" couldn't help but light up his eyes, he had heard of the legendary Mozi's secret book for a long time, and he didn't expect to hear Moton dictate it himself.

"A penny, it is difficult to cross the ocean, everyone rows oars, and drives the galleon.

A small tree, weak and unwinded, a hundred miles of forest, side by side to endure the cold. ”

Merton's loud voice was subdued and frustrated, and after speaking, he was suddenly full of silence, which was simple and unpretentious, but the philosophy contained in it was simple and easy to understand, and extremely profound.

Li Yun's eyes couldn't help but light up, and he was more interested in the secret works of Mozi in Merton's mouth, these words were simple and clear, but they contained the Mohist concept.

Merton continued: "Han Feizi once said that although he was silent with one hand, the so-called lonely palm was difficult to sound, but in the military parade that year, the people applauded and the applause shook the sky.

We all know that a chopstick, can be gently broken, ten chopsticks, tightly hugged into a group, with all their strength but can not hurt half of it, now the same is true of the Mo family's steel cable, the most popular Mojia machinery is the jack arm, a person's strength is enough to lift a thousand pounds of heavy objects, and rely on the Mo family ink skills, the wire rope composed of a small steel wire is a great contribution.

However, the suspension cable designed by the Mo family to build the Weishui Bridge is full of three feet square, like tens of thousands of steel wires tightly hugged together, and the force it can withstand is multiplied by ten times and a hundred times, not to mention, one suspension cable is not enough, and the Mo family prepared four steel suspension cables for it at once. Not to mention that the current carriage is only carrying 5,000 catties, even if it is increased tenfold, there will be no problem. ”

After Merton finished speaking, there was silence in the court,

"One chopstick was slightly broken, and ten chopsticks were tightly hugged. There is indeed a great truth in this statement. Li Shimin said with emotion.

Merton's theory seems incredible, but it is not difficult to understand, a tree that is still thick by one person is probably the helplessness of ordinary people, and it is cut into sticks the size of chopsticks, I am afraid that even a ten-year-old child can easily break them one by one, and the steel suspension cable of the Weishui Bridge is also this principle.

Li Yun was even more thoughtful, he always thought that the Mo family's ability to have today was just relying on Mozi's secret works, but Mo Jiazi was able to find the secret technique of building bridges from the inspirational words of the Mo family sages, which made him admire.

"And just a Wei River, among the rivers in my Tang Dynasty, at most ranked in the top 20, if I can't even conquer the Wei River, let alone the Huai River, the Yellow River, and even the Yangtze River, which are wide and have more complex terrain, if the brick road is unobstructed today, it is imperative to build a bridge." Merton said proudly.

In an instant, Merton found the best basis for the construction of the Weihe Bridge, both technically and theoretically.

Many courtiers have nodded, the Weihe Bridge opened up the northern passage of Chang'an City, which is of course extremely important, but compared with the bridge across the Huai River, the Yellow River, and the Yangtze River, it is still inferior, and the Weishui Bridge built today is just the least difficult. Only by building this bridge will it be possible to build a bridge with a longer span and more complex span in the future.

Seeing that Merton was about to convince everyone, suddenly a voice suddenly came out of the queue, but the matter of Weishui Bridge was in crisis again.

The head of the household said proudly: "Not to mention whether this bridge is feasible or not, it is difficult to achieve it in terms of materials alone, in addition to the underwater construction of this bridge, most of the steel is used on the water surface, so how much steel will be consumed, and how much money will be consumed, I am afraid that the imperial court finances will also be difficult to afford." ”

Li Shimin couldn't help but be stunned, and couldn't help but look at Dai Zhou on the side, who also smiled bitterly and said: "Back to Your Majesty, although His Royal Highness the Crown Prince reformed the post station to save an expense for the imperial court, but now the Tang Dynasty has too many places to use money, I'm afraid there is not too much money to build the Weishui Bridge." ”

Li Shimin frowned, turned his head to look at the Ministry of Industry and said, "What about the Ministry of Industry?" The prince had not already allocated enough money to the Ministry of Works. ”

Zhang Liang, the waiter of the Ministry of Industry, came out of the ranks, with a puzzled face: "Your Majesty, although His Royal Highness the Crown Prince has allocated a batch of funds, but this year, the Ministry of Industry has built a number of brick roads and overhauled the Yellow River and Huai River while the people are serving in conscription, and now there is not much money in the hands of the Ministry of Industry. ”

This Weishui Bridge is led by the Mo family, the Mojia village provides raw materials, and the Mo family Xiangfu family presided over the construction, and the Ministry of Industry is not willing to contribute money and efforts at all.

Li Yun and Tian Yu couldn't help but have a change in their faces, he didn't expect that there were so many people in the court who did not welcome the Mo family, this time the construction of the Weishui Bridge was a matter of benefiting the country and the people, but it was difficult.