Last time, Liang Xu thought of the production method of ancient Roman cement.

The extraction of volcanic ash carries a high risk, but that has nothing to do with the level of technology. And the firing of quicklime is not too difficult, Liang Xu heard that there are people in Xuzhou who are making this thing. In other words, with the scientific and technological level of the Eastern Han Dynasty, it is not difficult to get the cement of ancient Rome at all.

There is only one real problem, and that is to find the volcano.

Although Liang Xu did not know the distribution of volcanoes in Huaxia, he knew that Huaxia was located in the Pacific Rim Seismic Zone, and it would not be too difficult to find volcanoes.

It's just that the cement of ancient Rome has a huge disadvantage, that is, it dries very slowly, and if the cement is not dry, it will be finished on a rainy day.

But this is also a helpless thing, because Liang Xu has already returned his high school chemistry knowledge to the teacher, not only forgot the raw materials of cement, but also the raw materials of glass, only remembered that there was sand in it, and he had the impression that the raw materials of cement and glass seemed to be similar, so maybe he could take sand mixed with quicklime to burn it. But there seem to be three raw materials for glass, and what the other one is, Liang Xu can't remember it at all.

And now that there is finally cement to use, Liang Xu already feels that he is favored by God, and then he remembers the simple ancient Roman cement.

When Liang Xu first came to the Eastern Han Dynasty, he thought that even if he remembered the recipe for cement and glass, in such a backward era of the Eastern Han Dynasty, there was no way to fire cement and glass, because the temperature of burning cement and glass was very high. Until he saw the figure of porcelain in Kong Rong's mansion. He realized how wrong his previous thinking was.

It can burn porcelain at high temperatures, and it can also burn cement and glass, even if it is not to promote the development of science and technology, after these two things are made, they are super profitable. So Liang Xu decided that he must notify Zhao Yun as soon as possible to organize people to try.

After Liang Xu settled down in Xunfu Courtyard, Liang Xu immediately hid in the study and wrote to Zhao Yun, asking him to arrange personnel to find the volcano as soon as possible, and arrange personnel to test burning cement and glass, indicating the characteristics of the products he needed, and also indicating the general production process and precautions, and finally specially instructed Zhao Yun to pay attention to production safety. At the end of the day, it's the craftsman who is the most important asset. The rulers of the Han Dynasty didn't know this, but Liang Xu knew it very well.

Just when Liang Xu was busy arranging a new job for his experimental department, Xun Yu had already arranged for his subordinates to go to the Duxiang Marquis Mansion to hand over the post, and agreed to visit him tomorrow.

The next day, Xun Yu took Liang Xu to visit Duxiang Hou Huangfu Song as promised. Huangfu Song encouraged the two of them separately, and sent Xun Yu and Liang Xu away on the grounds that they were busy with official business.

Huangfu Song is really busy, although he was removed from the position of the commander of the Northwest Battlefield by Liu Hong, but he is still concerned about the Northwest Battlefield.

As far as he knows, the situation in the northwest is still not optimistic, since he was removed, his work against Bian Zhang and Han Sui was forced to be interrupted, although he later re-sent people from his own house to contact the two of them, but Bian Zhang's attitude has completely changed, and he feels that the guarantee given by Huang Fu Song is useless, and he is not even willing to meet Huang Fu Song's envoy.

Also because of the change of Bian Zhang, Han Sui did not dare to contact Huangfu Song's envoy in private.

In addition to the failure of the rebellion, the situation of the imperial court's conquest of the Beigongyu rebels was also not optimistic. Under the leadership of Zhang Wen, the Han army has been fighting with the rebels led by Beigong Yu for more than half a year, and both sides have won and lost, but the Han army still has not been able to recover the lost territory, and the rebels are still rampant.

Huangfu Song was not qualified to remotely command the Han army on the northwest battlefield, but he still hoped to find a way to win over Han Sui, who had not yet made a clear statement.

After leaving the Duxiang Mansion, Liang Xu didn't care about Huangfu Song's snubbing of him, and he was also used to being snubbed by others. Seeing that it was too early, he proposed to meet the future leader of Cao Wei, Cao Cao.

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Xun Yu didn't understand how his student knew so many people's names without leaving home, so in order to avoid getting the wrong person, he asked Liang Xu: "Is it the grandson of Cao Jixing, the former middle school attendant?" ”

Liang Xu didn't know who this superstar was, but the former middle attendant still understood. Isn't the ten permanent servants the middle constant attendants, and the middle permanent attendants are the eunuchs, that is to say, the super star that the teacher said is the eunuch, and the grandfather of Boss Cao is the eunuch, and the super star should be Cao Cao's grandfather.

Thinking of this, Liang Xu nodded.

Xun Yu instructed Liang Xu step by step: "Cao Yilang doesn't know if he is at home now, let's go back first." Remember, before you visit someone, you should first pay a prayer to them, make an appointment with them, and then visit them. It's polite. ”

Liang Xu nodded and replied, "The student remembered." ”

Xun Yu smiled gently and said, "Let's go back." ”

But as soon as the master and apprentice raised their feet, they were stopped.

The man who came was a white-faced, beardless man. The man saluted Xun Yu and Liang Xu, and asked respectfully, "May I ask which one is Liang Xu Liang Gongzi?" ”

Liang Xu stepped forward and replied, "I am." Who are you? ”

Liang Xu directly admitted his identity so reassuringly, wasn't he afraid that someone would think about it against him? He is really not afraid, Tai Shici has always been by his side, and he has confidence in this diamond-level bodyguard!

The man also replied unabashedly: "The official's surname is Gui, and he was ordered by Lord Zhang to invite Liang Gongzi to come over to the mansion for a gathering. ”

Liang Xu, who was still calm and calm just now, heard that the other party was a person sent by Zhang Rang, and his heart was furious: What is Zhang Rang looking for me? Did you see through my identity? But he only sent one man, and it didn't look like he was trying to arrest me. Or do you know that I am close to Huangfu Song and want to warn me to stay away from Huangfu Song? Huangfu Song was only taken down by Liu Hong after they entered into slander. The relationship between the two sides is certainly not good. Or does Zhang Rang take a fancy to my Dongping food and want to snatch it?

Although Liang Xu has no gender discrimination against eunuchs, but because the group of eunuchs has always been discriminated against by the literati, and the writers of history are basically literati, so the literati have also brought their prejudice against eunuchs into history, resulting in Liang Xu's view of the eunuchs in two lifetimes is also very negative.

So Liang Xu didn't want to see Zhang Rang, but he also knew that as long as he stayed in Luoyang, the energy of the Ten Standing Servants was not something he could compete with, and he couldn't go now!

Liang Xu didn't want to involve Xun Yu, so he said to Xun Yu: "Teacher, why don't you go back by yourself." ”