Long hair flowing, a beast hide around the waist, a wooden stick in the left hand, a stone knife in the right. Seeing an old cat ahead, throwing the stick, then throwing the stone knife, smashing t...
Chapter 250 Warehouse Completion (Please vote and subscribe)
You Fu led the exploration team away. All 40 people were riding. There were two giant eagles in the sky that could serve as scouts. Moreover, they were well-armed and could handle most situations.
Although they did not have weapons such as sabers, the two-meter-long spears were undoubtedly more advantageous, because the Han tribe already had stirrups. If there were no stirrups, they would definitely not be able to use long weapons, otherwise when they stabbed their opponents, they would fall off their horses, and the huge impact force would push them down directly.
You Fu had already gone out, so Luo Chong naturally could not continue to pay attention to them. He also had to supervise the construction of the city.
At present, the most important construction project is the warehouse, and the progress is very fast. The main reason is that there are many people. There are at least hundreds of people on the construction site with a team of thousands of people. After the most important foundation is laid, the speed of building the wall is still very fast. Moreover, the bricks are large, and one layer can increase the height by 20 centimeters. It only took one day to build a two-meter-high wall, but the progress afterwards was too slow.
Because the wall was too high, scaffolding had to be built. The speed of stacking bricks was not slow, but the supply of materials was insufficient. A large blue brick weighed dozens of kilograms, and the mortar used for bonding was not easy to transport.
Small bricks could be thrown directly to the people on top, but large bricks could only be pulled up by one person with a basket or basket. Only one brick could be pulled up at a time, and the speed was quite slow. Luo Chong had no good solution for this phenomenon.
The only tool that could lift a large amount of heavy objects at a time was a large crane, but that thing was too complicated and time-consuming to make, and Luo Chong had never made it. If he made it, it would take a lot of time just to debug and modify it. Maybe by the time it was made, the warehouse would have been completed.
Although he could not increase the work speed, Luo Chong could still save some effort for the tribesmen. If he wanted to save effort, the only thing he could do was a lever or a pulley. These were all junior high school physics knowledge, and teenagers could play with them, so there was no reason why Luo Chong could not do it.
To lift a heavy object, a fixed pulley can only be used to change the direction of force. For example, if a fixed pulley is installed on top, people can pull the rope down from below. However, if you want to save effort, you can only use a movable pulley. A movable pulley can save 50% of the effort. Just one can greatly reduce the fatigue of the tribesmen, so there is no reason not to make it.
It is not difficult to make a fixed pulley and a movable pulley. In fact, it is just the same thing. The difference in the name is whether you install it on the top or the bottom. To put it bluntly, it is actually the same thing.
Considering that it is not used to lift anything particularly heavy, a wooden pulley can meet the requirements. Luo Chong immediately gave the carpentry team the task of making pulleys, which can be completed by one or two people.
First, find some suitable scraps, make three round wooden boards of different sizes, then punch a hole in the middle, and then fix them with a copper nail. There is no hook on the outside, so it is directly replaced by a rope. It is so crude that it is outrageous, but it doesn’t matter. It can be used and done quickly.
After two days of rushing work by four carpentry apprentices, they finally made some pulleys. Two slightly larger round boards sandwiched a smaller round board in the middle. The outer boards were not even very round, but it didn't matter, they could be used.
After the pulleys were made, Luo Chong immediately handed them over to the construction team for use. First, a pulley was tied to the scaffolding above, and then a rope was passed through a pulley below, and then a large basket was hung on it. The people below directly put bricks or mortar in the basket, and then another person could easily pull the basket up. The effort was saved and the efficiency was naturally increased. However, because only one brick could be loaded at a time, the speed of construction was also limited.
Some people say that war is the driving force of science and technology. This is actually true. Every world war is a time when human science and technology explodes, because to develop a new weapon, you have to develop a lot of supporting by-products.
Just like building an airplane, you have to have the steel used for the airplane, and you also have to develop other materials. Therefore, these indirectly generated technologies, if they are exposed to the civilian field, can bring about a qualitative change in people's lives.
But this is not a situation that will only occur during war. Luo Chong believes that construction is also possible. Take the construction of the warehouse this time as an example. In just a few days, two types of technological equipment have appeared, a lever tamping car and a labor-saving pulley. These two technologies alone have greatly accelerated the speed of construction. This is another sentence we often say, that science and technology drives productivity.
The outer walls are rising rapidly, and the construction inside the warehouse is also proceeding simultaneously. Four brick beams with a side length of 80 cm are also rising from the ground. The foundation of the pillars is deeper, nearly three meters. The bottom is a thick layer of limestone to prevent moisture, and then a layer of rubble is used to bear the weight. On top of it, a layer of mortar is poured to fill the seams, and then blue bricks are used for masonry.
Each pillar is surrounded by a circle of scaffolding, with vertical lines hanging around it. Two people are responsible for laying bricks on the top, and pulleys are used to transport materials below.
The four main beams are arranged in a vertical column in the north-south direction. Each pillar is five meters apart and 5.5 meters away from the north and south walls. The four pillars will be used to support a main beam that is 18 meters long and half a meter thick. Then, purlins will be built on the main beam from the four directions of the wall. Finally, grass will be laid, mud will be sealed, and tiles will be covered. The finished product is the roof of four slopes.
With the hard work of the tribesmen and the guidance and supervision of Luo Chong, the warehouse was finally built one week before the end of the month.
The tall and empty warehouse has an area of 600 square meters. The seven-meter-high walls on all four sides have two gates in the east and west directions, that is, in the middle of the rectangular warehouse. In this way, no matter which end of the warehouse you go to, you can open the door at the fastest speed.
The area near the wall inside the warehouse is divided into two floors. There is a wooden floor that is four meters high and four sides wide. There are no wooden boards on the floor yet. There is only a circle of wooden beams and pillars, one end of which is on the wall and the other end is supported by the pillars. There is not even a staircase, so the only way to go up is to climb a ladder.
In addition, on the second floor, there is a circle of large windows that are one and a half meters high and two meters wide on the wall of the warehouse. Now the windows are simply blocked with wooden boards. These windows can only be opened and closed by climbing up to the second floor. One is for ventilation of the warehouse, and the other is for lighting of the warehouse. When they are replaced with paper-pasted windows in the future, there will be some light in the warehouse, otherwise it will look dark.
There is a purpose for building this second floor. A small amount of food or a large amount of straw can be placed on it to serve as a reserve for livestock over the winter, and to accumulate experience for building multi-story buildings.
(End of this chapter)