Shang Wen took out his notebook and began to record some plans, this is Shang Wen's fifteenth notebook. On top of this. Shangwen recorded a large amount of experimental data and related preliminary plans. Moreover, it has been continuously improved on this basis.

The first is the roller equipment, which is not available in large quantities of power equipment at the moment. Therefore, when designing, it is still effective to consider human and animal power. In fact, such equipment should have appeared a long time ago, and Shang Wen already had such an idea when building roads in the north. However, the large number of Xiongnu prisoners of war who were mainly used at that time, and the extremely cheap labor, made invention almost impossible. There is cheap labor available, so why use your brains to save some effort for these prisoners of war.

It was in this way of thinking that the prisoners of war constantly used their own strength to tamp the asphalt roads. If this continued, the Qin state would have a reason to continue to expand its war, and that was to obtain a large number of cheap labor, but at the same time it would inhibit another kind of development, that is, machinery. The onslaught of a large number of laborers is almost fatal to machinery. It is only when the needs of the population are contradictory that people will try their best to improve the equipment and rely on other motivations to complete engineering projects that cannot be completed by manpower. It's a contradiction. This contradiction stems from the difference in the mode of development of human beings.

Now it is said that which of the two models has more advantages, Shang Wen is still unclear, mainly because the current needs are different. The Qin State needed a large number of prisoners of war for infrastructure construction, and with these prisoners of war, it was possible to spend a lot of civilian resources on infrastructure construction. This is where the advantages lie. And these civil forces can be distributed to all aspects of the Qin state, operations, logistics, handicrafts, industrial processing, and so on. The coexistence of the two models has not yet caused a major conflict, and if one model is overemphasized at this time, it is likely to lead to its own conflict.

This time, I used my own people to build the road. It takes a long time to call in prisoners of war. War does not wait for time. Therefore, using your own people is the only option at present. Rollers, adopted, bronze, iron, stone. Three kinds of heavy cylinders made separately are fine. As long as a center is set in the center and the axle can be inserted, bronze and iron can only be poured.

Other tools are shovels and pickaxes. There is still a big difference between the ancient shovel and the current shovel. Pickaxes, on the other hand, are more often replaced by hoes, and special engineering tools have not yet been differentiated.

These basically meet the needs, and as for explosives, it goes without saying. Granular gunpowder is equivalent to high gunpowder, as long as it is packed in oiled paper and sealed. When using, punch holes, place and you can use it. The ignition method can only be ignited, after all, electricity is still only in the laboratory.

After solving the engineering problem, the next step is the problem of cavalry equipment. This is a big problem.

Cavalry is different from ordinary infantry equipment. Infantry can have a stable phalanx to maintain overall stability, but cavalry cannot, they have to sprint, they have to maneuver back and forth. In constant movement, look for your opponent's weak points and embed them. Tear through the enemy's defenses and finally collapse them. The infantry charged. Crush your enemies in one fell swoop. But this time the opponent was a cavalry team with the same large number. Infantry can only build defensive formations to stabilize their defenses. Avoid being caught off guard by the opposing cavalry.

Thinking of this, Shang Wen thought of a tactic, that is, the famous trench warfare, this method of warfare, first appeared in the Civil War period, the use of firing muskets, greatly increased the rate of fire of muskets, the power of artillery, compared with the Napoleonic Wars period improved a lot, neatly arranged phalanxes for defense, undoubtedly looking for death. The soldiers began with an instinctive design of lying down, but gradually turned into digging trenches for defense, and the addition of barbed wire and machine guns made World War I an arena for trench warfare.

Shang Wen used a pencil to record this tactic. With picks, shovels, they should know how to do it. Increasing the yield of barbed wire is enough to inflict fatal wounds on cavalry. The barbed wire is so difficult that it is a soldier's nightmare. This kind of barbed wire was difficult to remove during the First World War, when it was bombarded with heavy artillery. If a large number of arrangements are made, the Yue Clan can dismount and fight. Or step on your own people to move forward. The former is a desperate move, and the latter is extremely bloody and cruel.

This is war.

The muskets used by the cavalry were smaller in length than the muskets, especially the barrel part was one-half less. Or a third, mainly to facilitate secondary reloading. It was impossible for the cavalry to reload with long muskets erected on their horses. This time was too long for the cavalry. And it's not easy to reload.

Short and concise, it is the weapon that cavalry needs most. Shang Wen took the drawings and found someone to make them. Looking at the drawings, Shangwen thought it was a bit of a carbine. As for the history of the carbine, Shang Wen does not know, but it is very likely that it comes from the equipment of the lancers. This short piece of equipment does not lose its original power and is easy to carry. It is also the reason why it can be promoted on a large scale.

As for the artillery, Shang Wen used a four-inch caliber in accordance with Wang Qian's requirements. Multiples are eightfold, and tenfold. Two sizes. The final adoption needs to be supported by experimental data.

Shang Wen ran from east to west in this way to fulfill the requirements of the cavalry.

However, the printing and dyeing workers in the textile workshop found Shangwen.

"My lord, what do you think of this purple?" The dyer asked.

"Yes. How does this match? Shang Wen asked.

"Take the red and the blue to match. It's just that this color is extremely difficult to match. Very few people can use it, I don't know, why do adults choose this color? The dyer asked.

How can Shang Wen answer. Could it be that he said that he was on a whim. But when it comes to it, this purple is indeed an alternative to color. Red and blue have a slightly different proportion, and the effect of purple is also different. Reddish, bluish. Makes the purple appear a psychedelic feeling.

Purple represents this dignity. The consuls of Rome were proud of the color purple. The West prefers purple. It's not easy to make purple. Because it is not easy, it is rare.

"Rare. That's right. Let's print and dye. Leave me a little bit of some dye, I'll be useful. Shang Wen said.

It's a shame to print and dye clothes. Such rare colors should be used where they matter most. Banknotes, bonds, stocks. That's where the most important thing goes. There are also anti-counterfeiting watermarks.