One of the core modules is the gold and jade alloy made of stainless steel and jade, which is an indispensable material.

However, Zhao Yu specially summarized and studied the method of smelting gold and jade with a steelmaking furnace by ordinary means. In the eighteen volumes given to Cao Mengde, there is a detailed smelting process. This is not only because Zhao Yu is unwilling to turn Taihe Courtyard into another Zhaozhuang and turn it into a noisy processing factory.

The deeper reason is to cultivate people's smelting ability.

Otherwise, it is only necessary to transport the steel and jade to the Taihe Courtyard in batches and put them directly into the magic furnace, and there is no need to summarize the mundane smelting process.

Perhaps people can get a lot of inspiration from the smelting process, and then evolve a variety of other alloy metal smelting methods.

A lot of times, when something happens, as long as there is a beginning, people will suddenly understand.

Oh, so it could be like this.

Through such means, the effect of indirectly promoting social productivity can be achieved.

Of course, maintaining the tranquility of Taihe Villa is also an important reason.

After all, when steel and jade pass through the Dharma Furnace, they will be refined nine out of ten impurities. To refine a three-inch square module, the material required is a hundred times its volume. If steel and jade were to be transported directly, it would not be possible to submerge the huge amount of materials in the courtyard, and three to five hundred power modules would not be able to be refined at one time.

In that case, there will be no peace in the whole courtyard.

Therefore, let Cao Mengde complete this step outside first, smelt the gold and jade, and then send it to the other courtyard, so that the tranquility of the other courtyard will not be broken.

Then, this machine car carried the most powerful princes in the land of Shenzhou and the important civil and military ministers under their command, and instantly rose to the sky.

If an accident occurs and Zhao Yu can't be rescued, all the peace under the high altitude will be broken in an instant.

"There are three levers on the console, the one on the left is used for starting and closing. The middle one is acceleration and deceleration. The one on the right is the control of details such as steering, U-turning, turning, rolling, etc. Of course, tumbling or something, it's better not to play. ”

Zhao Yu smiled, turned the operating lever on the right, and the machine car in mid-air suddenly turned three hundred and sixty degrees, and Cao Mengde and the others couldn't hold it steady and turned upside down. If it hadn't been turned over quickly, it would have turned back in an instant, and everyone would have to go down their heads and feet.

"Sir!"

Cao Mengde's face turned white with fright.

Zhao Yu laughed: "How about it, it's fully functional, right? There is not too much decoration in my machine car." The flying cars you will build yourself in the future can take this into account. The seats are designed to hold people in place, and that's no problem. ”

Then Zhao Yu demonstrated to everyone one by one the functions of acceleration and deceleration, turning and turning around.

Finally, he returned to Puyang and landed again in the open courtyard of the State Pastoral Mansion.

Walking out of the machine car top-heavy, Cao Mengde only felt light and fluttering, and he couldn't stand steadily.

Zhao Yu hugged him: "It's good to get used to it in the future." ”

"The core power module is very material-intensive. While the group was walking, Zhao Yu said: "Don't look at the module three inches square, but its total weight is more than fifty catties." And for each such module refined, if it is refined with a magic weapon, the materials consumed will be a hundred times its total weight. It takes more than 5,000 catties of steel and jade to make such a piece. The previous more than 100,000 catties of stainless steel and nearly 100,000 catties of jade, and the remaining more than 10,000 catties after refining the magic furnace, were only made into three modules. ”

"So..."

Hearing this, whether it was Cao Mengde, Xun Yu and others, the joy in their hearts was reduced a lot at once.

"That's too expensive, isn't it?"

Cao Chun couldn't help but speak: "Jade aside, more than 100,000 catties of steel are enough to build thousands of sets of fine armor!"

Zhao Yu bowed slightly: "That's true." ”

"It's inevitable that you'll be consumed," he said. Who made this thing fly? Even if you don't stack the suspension charm and eliminate its flying ability, the speed of galloping on the ground can throw off the war horse ten times or dozens of times. ”

Zhao Yu said carefully: "The territory of our Zhuxia nation actually formed a relatively fixed framework during the Zongzhou period. By the time of the Han Dynasty, although there was a gradual expansion, it was not large. It's not that the sons of heaven are unwilling to rule a larger territory, but that they can't rule. Meng De, Wen Ruo, you know this better than me. ”

Cao Mengde couldn't help nodding again and again: "What Mr. said is true." The empire was so large that the dominance of the central court diminished as the territory expanded. This is largely the reason why the frontier has never been stable. ”

Xun Yu also said: "The lord is reasonable. For example, after the incident, when it was transmitted to Chang'an or Luoyang, a year and a half had passed, and it was too late. Even if you know it in time, because of the long distance, it is too late to dispatch troops, which is beyond the reach of the whip commander. ”

"Yes, the whip is out of reach. As he spoke, he entered the lobby.

Sitting down, Zhao Yu said: "The key lies in transportation and communication. ”

He said: "Meng De and you have also experienced it just now. My machine has a weight of more than 60,000 catties. And its flight speed can reach more than ten times the speed of sound at the earliest. ”

"Oh yes. Zhao Yu hurriedly explained: "The speed of sound is the speed at which the sound is transmitted when we speak. How to measure it, one hour of seven thousand two hundredths is counted as one second, and the speed of sound in one second is three hundred and forty meters, that is, a little more than one hundred and thirteen zhang. ”

"The speed of the machine car, 7,200 per hour, is more than 1,133 zhang. ”

At this time, Xun Yu answered: "Seven and a half miles." ”

"Yes, Wen Ruo is a quick thinker. The speed of the machine car is more than seven and a half miles in one second. Meng De, do the math, how much time will it take to get from the easternmost part of the Han Dynasty to the westernmost part of the Western Regions?!"

Cao Mengde couldn't help pinching his fingers and calculating carefully.

"From Lelang in Youzhou to Dawan in the Western Regions. Xun Yu reminded: "There are fourteen thousand miles. ”

Cao Mengde calculated this in his heart, his eyes slowly widened, and his mouth opened slightly: "Two moments?!"

Zhao Yu smiled and nodded: "Yes, it's two moments of time." Eat a little slower, and you won't need to work hard in a single meal. ”

"Shhh

The sound of inhaling cool air one after another suddenly sounded in the lobby.

"Meng De, you think, if there are 1,000 such flying cars, each with 30 people, you can send 30,000 soldiers and horses from Lelang in Youzhou to Dawan in the Western Regions in one meal. Zhao Yu said with a smile: "No matter how far away the border is, no matter what happens, the news can be delivered to you in the hands of a meal at most." In this way, is there anything else that the whip commander can't say?"

Cao Mengde slapped the case on the table, and his hair was all open: "Hugh said that the kung fu of a meal is three or five days, and it is too late!"

"Yes, it's time for three or five days. Zhao Yu said: "This core power module can carry a behemoth of up to 20 million catties flying in the air." The speed can be maintained at about 30 zhang per second. It's one-thirtieth of my little machine. And such a behemoth, one plane can carry thousands of people at a time, more than three or five planes, seven or eight, casually tens of thousands of troops, can traverse the territory of the Han Dynasty within eight hours for 14,000 miles. ”

"So, Zihe, do you still think that one module is not worth a thousand sets of armor?"

Cao Chun shook his head fiercely: "Hugh said a thousand sets, that is, ten thousand sets, one hundred thousand sets, and it is not as good as a module!"