Shang Wen watched Cao Xin leave, and then opened the things that Cao Xin brought. As soon as he looked at the color, Shang Wen knew that the obtained thundermercury was a crude product. Taupe. And not that white refinement.

But that's enough. At the very least, the musket has moved from the flintlock to the firing state, and the bullet in the real sense of the word will appear. The age of firearms is also coming. Shang Wen took good care of these things. Then go to the fireworks bomb.

The bright light of the ceremonial flowers comes from those chemically reactive metals such as aluminum, magnesium, titanium, zirconium and other powders. These metal powders are oxidized in the air and burn violently, and the temperature can be as high as more than 3,000 degrees, thus emitting dazzling bright light. These metal powders are known as luminescent agents. As for the colorful, it all depends on the work of the colorant.

Hair colorants, in fact, are some ordinary metal salts, yellow with sodium salt, blue with copper salt, gold with gold, others need strontium, barium, aluminum and other metal salts, these things, Shang Wen can't find, he can't tell with the naked eye. In addition to the first few, several are magnesium, which is also present in calcium oxide, and the taste is bitter. Then electrolytic separation.

Shang Wen needs time, slowly reloads, and then experiments.

And time passed quickly, and the Qin army completed the transfer within seven days and declared it a failure. It will not be possible to complete the redeployment on the original basis within seven days. The first is that the highway system of the whole country of Qin was not fully established. Even though the carriage and horse travel developed rapidly, the low capacity of the highway seriously hindered the overall movement of the Qin army.

Although the Qin army's engineering units continued to build roads and use explosives to widen the roads, the impact of the poor road conditions was too great. In particular, the repeated crushing of the heavy troops of the Qin army. As a result, the road surface is very badly damaged. The infantry had a hard time marching.

Cavalry units were able to pass quickly, but their logistics could not keep up in time, especially the artillery, after being crushed by the cavalry and the artillery units in front. The troops behind are already impassable. Four-wheeled carriages with high road requirements have a much lower capacity than ox carts. Maneuverability is greatly reduced.

Overall, seven days have been enough to complete the assembly. There was no way, and the General Staff temporarily instructed the 1st Musket Division to set up a General Staff to deal with such incidents. The mobilization of the Qin army slowly improved.

Sappers fill the road with a large amount of gravel. Improve road surface conditions. The gendarmerie, for its part, carried out effective traffic control measures to speed up its advance. The difficulty of mobilizing troops began to make the General Staff plan and formulate a series of logistical support measures, especially the improvement of road conditions.

And these measures are all derived from the change of weapons. In the past, the weapons were all cold weapons, and the requirements for road traffic were not very high. However, the emergence of artillery units makes it necessary to pay attention to this situation. Without artillery, troops armed with muskets could not fight alone. Especially in the face of archery units that still have a certain advantage in range. As a result, musketeers need more intense fire to cover, and a large number of battlefield situations require this. Some army officers have become accustomed to the power of artillery. Without artillery, none of them knew how to fight.

The road can only be strengthened by compacting and laying gravel. In the logistical support system, some units in charge of logistics and transportation have begun to be established, and chariot and horse transport regiments, engineer battalions, or engineer regiments have also begun to be established.

At the same time as these projects were carried out, some more advanced measuring equipment began to appear. Rangefinder, angle meter, etc. Started for mapping. These units were distributed among the Qin army engineers.

While Qin made significant improvements, the Six Kingdoms also began to send their own visiting groups. Zhao sent Li Mu, and the urgent edict of King Zhao made Li Mu stop the attack, and the 100,000 army urgently returned to defense. When he learned that it was the Qin army that was going to hold a large-scale exercise, Li Mu was also nervous. A large-scale arming was immediately launched. Then he decided to go and check on the exercises of the Qin army. The document given by Ambassador Qin clearly stated that it was a new type of army. Li Mu had already learned the power of muskets and artillery on the battlefield, so he decided to take a look.

South Korea and Wei are on alert throughout the country. The delegation sent could not offend the Qin State either. So, the team size is not small.

The scale of the visiting group sent by the Qi State was very large, mainly some generals. These generals were officers who had just been armed with muskets and artillery. They still don't understand the combat methods of these weapons, and they want to learn the combat methods of the Qin army through this visit.

The state of Chu sent a small number of civil and military attaches to participate as representatives, and Xiang Yan once again attended as a representative of the military attachés, the reason why Xiang Yan was chosen was because the internal political factions of the state of Chu could not win over Xiang Yan, since they could not be co-opted, then let him stay away. As a result, Xiang Yan was once again honored to envoy to the Qin State. Visit the exercises of the Qin State.

The enthusiasm of the Yan State was very high, first of all, they unexpectedly did not lose the country because of the exercises of the Qin State. Li Mu's army only walked around outside the Yandu City and withdrew. King Yan believes that this is all the credit of the Qin State. So he sent Ju Xin to attend Qin's exercises as an envoy representative, and took the opportunity to seek Qin's help, especially in firearms.

In order to show the friendship of the Yan Kingdom, a large number of precious gifts were deliberately selected to show favor to the King of Qin.

The six countries are all preparing, and the Qin state is also preparing, and the king of Qin has already ordered Li Si to be the supervisor of the state, and he has to go to check the situation of the exercise in person. At the same time, he also secretly ordered the Celestial Army to prepare. Participate in drills at any time. The fact that the Heavenly Army was able to participate was all due to Yingyu. At first, Yingyu couldn't make sense, but through the ice cream offensive, the perfume offensive, and the harem offensive, King Qin finally agreed at this time.

The amount of perfume is very limited, and this thing is an absolutely sought-after thing in King Qin's harem, and many concubines of King Qin took out a lot of rare treasures to exchange, and Yingyu smiled fiercely. In addition to perfumes, ice cream, ham sausages, colorful clothing of all kinds, especially hairstyle design, etc. A large number of them are transported to the harem, the harem of the King of Qin is originally very strange to Yingyu's advanced dress, this send, the harem has become the forefront of fashion in the Qin Kingdom. Those palace maids and female officials became experimentals with hairstyles. Wave rolls, as well as a variety of cumbersome hair accessories, have become the object of imitation among the people. And these things are also slowly spreading out of the customs and flowing to the six countries. Costume of the impact of the six countries, the dress-up.