Tangtang wasn't angry with Lu Jingzhi, she was just blaming Lu Jingzhi for why she didn't run away. Even she didn't know it, and in her heart she was deeply afraid that Lu Jingzhi would never return. When Lu Jingzhi hadn't come back yet, she looked at the gate of the barracks more than once, and when she saw him, she couldn't even suppress the joy in her heart, and rushed up to hug him. So Tangtang was angry with himself, and he was too small to help Brother Jing escape, but it became his concern. At this level, concern became derogatory, and in her heart it became a burden.

Lu Jingzhi didn't think about it so much, he was used to it, and he was not as sensitive as Tangtang. At this time, he commanded more than 20 of his men to remove the assault rifles, heavy machine guns, grenade launchers and other things from the car and move them all to Tilly's barracks. "Not a single weapon is left, pistols and rifles have no effect on these things, and it is a curse to stay. Lu Jingzhi saw that someone wanted to hide his assault rifle under the bed, and immediately stopped it.

The man had a gun in his hand, so he didn't take this skinny little boy so seriously, and said with a disdainful face: "Adult's business, children don't intervene, otherwise be careful to blow your ass." ”

Muller walked over, slapped the man to the ground, snatched the rifle from his arms, threw it to the man who carried the weapon, and then turned to him and said, "I have the final say." For now, at least, I'm your captain. ”

When the others saw that Muller had made a move, they all stopped to watch the commotion, and a soldier who had a good relationship with the man with the gun walked over, pulled him up from the ground, and said, "If you want to die, just die yourself, don't harm us." The man nodded, realizing that his actions were affecting the others, and he rubbed his beaten red and swollen face, and said to Meller, "I'm sorry, boss, I love my C7 so much, it has been with me since the beginning." ”

Müller patted him on the shoulder, forgiving, and turned to everyone: "Attention, everyone, we have to listen to this boy, because here he is a guarantee of our safety." Even if necessary, we have to lay down our lives to protect him, because to protect him is to protect ourselves. ”

Lu Jingzhi listened to Mueller's words and was a little moved. In his mind, these people were just his own kind, or contemporaries, and they didn't have much closeness, and when Meller said this, he felt a little guilty. But he didn't say anything, just said to those people in his heart: I will do my best to protect you.

Weapons and ammunition were sent away, and the car was left behind. Except for gasoline, which needs to be removed from the entire tank, everything else can be dismantled and broken, even if it is a screw or a gear. What to do, Lu Jingzhi already has a plan in his heart, he calls it the Bisheng plan.

Bi Sheng was the one who invented movable type printing in ancient China, and if you want to make spells in large quantities, you can't do without printing. Therefore, Lu Jingzhi called the plan to print the spell deed Bi Sheng. He was inspired by the "Gutenberg Project" that began in the United States in the 70s, when a college student obtained the highest authority for a supercomputer, and this computer was one of the first node computers to form a network, so the college student began the book digitization action, and called it the Gutenberg Project. Lu Jingzhi borrowed this nomenclature, but he preferred to use the Chinese name, so he chose Bi Sheng.

After all ten cars were disassembled, Lu Jingzhi surveyed and mapped the dimensions of all the parts, and converted their strength, hardness, wear resistance and other information according to the material, and designed the number of spare parts according to the versatility of the parts, and then started to build the first printing machine. In fact, if you just make a spell grenade, you don't need to spend so much effort to study the printing press, just just engraving and printing, that is, carving some graphics on wood and rubbing them on paper or cloth. But Lu Jingzhi's heart is very big, doesn't he have so many materials, through the power of the spell, he can restore all the advanced and useful tools in the world—if possible, even computers and 3D printers. In addition to a lot of design, this also requires a flexible way to generate spells, and letterpress is the most flexible way to combine existing element arrays. As a result, Lu Jingzhi used a large number of permanent magnets to fix the position of the letterpress spell graphics, and was able to achieve the closest to the design standard within the acceptable accuracy of the printing graphics - under such simple conditions, the printing is certainly not as accurate as hand-drawing, but the efficiency can be improved dozens of times, even hundreds of times, thousands of times.

But the problem is not only the design of the printing press and the layout, but also the paper and paint. This is the biggest problem that restricts Lu Jingzhi. However, with this cleaning of the battlefield, he found a gray rock near the battlefield, brought it back to take a closer look, and sure enough, it was the limestone he had been thinking about for a long time. This limestone is quicklime, i.e., calcium oxide, after calcination at high temperature, and hydrated lime, i.e., calcium hydroxide, when reacted with water. Lime is an important material for papermaking, people as early as more than 1,000 years ago with lime water to soak bamboo, wood, thatch and other things, fully matured after draining the excess water, dry it. Paper made of lime has finer fibers, stronger paper, and a whiter color.

If it were someone else, he would definitely worry about where to find someone to open the mountain and blow up the rocks, but Lu Jingzhi was not worried. The thousands of grenades he made were originally explosive and lethal, not killed by fragments, but used to blow up limestone, but just a few more bundles. Just because it is not a real explosive, it cannot be detonated with a single detonator, but it is necessary to calculate the release time of the elemental storage spell and the absorption time of the detonating spell, and let them explode together in order to increase the power, otherwise only one explosion cannot detonate other grenades bundled together. As for how to punch holes in the stones, how to drill deep, and how to bury explosives, Lu Jingzhi didn't think about it at all. He thought of a simpler approach. Warm the stone with the fire element, then cool it with the water element, let the stone crack naturally, and then put the loaded grenade in it and pull out all the parchment notes at once. However, people must run away quickly, otherwise once they are shocked by the shock wave or hit by flying stones, they will definitely end up dead.

When Lu Jingzhi was designing the opening plan and the spell deed graphics, Mueller had already led people to build the prototype of the letterpress press. They used ice fruit logs as mills, crushed the dismantled roof iron sheet, and turned it into a large iron cylinder, on which a benchmark circle was made, and inside the circle were pre-opened holes, and inside the holes were bolts, as long as the letterpress layout was designed, it could be fixed to the circle with nuts at any time. The circle of the letterpress was made by cutting out the iron sheet on the roof of another car, and Lu Jingzhi filled it with a fine and dense grid. All the individual radios and car radios were disassembled, and the permanent magnets inside were taken out as the base of the letterpress, and the base was aimed at the lattice and sucked on the round iron plate, and then the carved steel pattern spell was fixed on the base. In order to prevent the spell from taking effect directly on the steel grain, the complete spell is not engraved directly on the steel plate, but is printed in two parts. After the spell is sealed, it is also divided into two parts, and when it is used, they can be used by aligning them together by external force, and it can take effect. Although the effect is worse than the directly printed spell deeds, it is easy to preserve, and hundreds of spells are piled up together, and they will not explode on their own. Before solving the storage method, Lu Jingzhi decided to accept the inferior product first, and it was a big deal to increase the density of the use of the spell.

Because the mining of limestone and the manufacture of printing presses were carried out simultaneously, when the Mueller team completed the installation of the first manpower printing press, Lu Jingzhi also came back with dozens of zombie slaves who mined dozens of tons of limestone. This time, I didn't use many zombies to carry it, but I made 20 sets of wheels into 20 simple trolleys, and let the zombie slaves push them back, and the carrying capacity was greatly improved.

If the limestone is calcined with ice fruit wood, the cost is too high, and the age of the ice fruit tree is long, and it is not easy to grow one, and it cannot withstand indiscriminate logging. However, Lu Jingzhi didn't need to burn lime with the traditional kiln method at all, he just found some harder steel, such as the frame removed from the car, the steel daggers carried by the team members, etc., and used these harder materials to make a carving knife, and directly carved the collection spell of the fire element on the limestone. Most of this heat is dissipated into the air, and a small amount is transferred to the interior of the limestone, heating its own temperature. When a large number of carved limestone are piled together, the heat emitted by the central deed is also absorbed by the other limestones. In this way, the whole pile was heating up on each other, and after only a day and a night, the limestone pile was already hot. By the next night, the limestone could already be seen glowing a dark red, indicating that it was already several hundred degrees hot. By the sixth day, the limestone pile was glowing orange, indicating that it had reached its design temperature of 1100 degrees.

Lu Jingzhi was very satisfied with this progress, and he asked the Mueller team to throw a clay ball engraved with the water element to store the spell 20 meters away from the limestone pile. After the clay ball shatters on the limestone pile, a large amount of water is released from the formation, penetrates into the limestone, and is absorbed by the high-temperature and high-heat quicklimestone. On the one hand, the quicklimestone expands unevenly after absorbing water, and on the other hand, the physical changes of thermal expansion and cold contraction, the two forces are combined, and those limestones immediately beep and peel apart. After the split, the fire elemental spell loses its effect, no longer provides heat, the temperature no longer rises, and slowly the limestone pile is no longer hot, and the color changes from gray to snow white.

Plants have a yes side. Elastic sunflowers are everywhere, its flowers leach golden juice to be used as pigments, and its stems can be made into elastic fibers, which were used to wrap iron bowl grenades. There must be parasitic microorganisms on these plants, and although the bacteria on the plants do not pose any harm to the undead, the sap of the plants can provide water for the scavenging fungi, so the work of collecting sunflowers is still up to humans.

Did Lu Jingzhi's paper make smoothly? I want to know what happened next, and look at the next decomposition.