Wherever the horses went, the shops were closed and the inns were covered. I think the local military lord was used to being domineering, and the small businessmen were afraid that the three men would bully them.

Hu Caiting asked curiously, "It's noon, why are all the shops closed, and there's not even a shop where you can rest?"

There was a grunting sound, and it turned out that the glutton in the belly started to complain.

Xunzhi saw the noise and excitement of people not far away in front of him. He waved his whip and pointed in the distance, "Let's go there and have a look."

Qingyun was already fed up with hunger, so he rushed over first.

I saw that a house in front was busy with silk hangings, colorful decorations and a big banquet.

While everyone was busy, a tall and fierce horse suddenly rushed past. Even though Qingyun hurriedly grabbed a few reins from his arms, he almost hit the steward at the door who was responsible for greeting the guests.

When the man saw this posture, he didn't take it seriously. Instead, he smiled and greeted hurriedly.

"Master Jun, thank you for the honor. Please come inside! Please come inside! The two tigers will take care of you, ah, the three of you will be seated!"

The steward had a sharp eye, and when he saw two riders behind him, he greeted them both.

The young man named Erhu brought several servants with him, and enthusiastically took the reins from the hands of the three of them.

"Several military lords have come to visit me. It's a glorious place in our hotel! Let's have some tea and snacks and listen to a little tune. Then of course there will be a thank-you gift for you!"

Xunzhi immediately understood that he was being treated as an officer for free food and drink, so he didn't argue much, winked at the two men, and followed the two tigers in without hesitation.

》》》》》Time to knock on the blackboard》《《《

Gunpowder is a great chemical invention in ancient China.

The industrialization of gunpowder was, of course, something that happened after the late Tang Dynasty. But as we mentioned before, industrialization is not the criterion for the birth of inventions.

The inventor of gunpowder is a Chinese Dan family. It is difficult to say that it was a one-person event. The formula for flammable saltpeter was recorded as early as the Jin Dynasty classic "Baopuzi".

In fact, earlier in the Han and Wei dynasties, the Dan family's works "Zhou Yi Shen Tong Qi" and "Thirty-six Water Methods" had records on the properties and usage of saltpeter and sulfur.

Tao Hongjing, Mr. Huayang who appears in this book, is one of the masters of alchemy. In his "Compendium of Materia Medica", he gave detailed explanations on the burning of saltpeter and the method of using flame color to determine the composition. For the early prototype of gunpowder, it is

I have some familiarity with it.

The saying that the air contains yin and yang qi, and that yin qi promotes combustion, appears in a manuscript called "Pinglong Recognition". This book has now been lost, but it was once cited by a German scholar to describe the discovery of Eastern chemistry.

It has some influence in the Western world. According to the description of this German scholar, the manuscript he obtained was written in the Tang Dynasty. The original author is unknown from which dynasty it was. It was transliterated as Mao Heng (Mao Sui's nephew?). And the book he quoted in his paper

The French translation of Chapter 3 is also the only fragment of the book currently available.
Chapter completed!