However, even if he was misunderstood by Murong Wan'er, or if he made the matter public, his tone was calm and slow.

In the past, most of the vehicles used for land transport were two-wheeled vehicles. Two-wheelers are only suitable for driving on flat roads, not on mountain trails. During the war, due to the difficulty of transporting grain through the mountain roads, the means of transportation needed to be solved urgently.

At this time, Pu Yuan invented the wheelbarrow, often called the wooden ox", "Lian Yang Shuangyuan, six feet of people, four steps of oxen, people carry one-year-old grain". This unicycle is suitable for walking on rough trails and has been widely used for more than a thousand years.

How to increase the speed of the ship is an important issue in the design and construction of ships. The new type of warship designed by Li Gao "carried the second wheel, sailed in the wind and waves, and was as fast as a sail seat".

Liang Houjing is particularly prominent in the production of siege equipment, once "set up a hundred-foot building car", and also built flying buildings, crashes, climbing cars, hook wood, step cars, trains, etc., "and several zhang high, one car to twenty wheels". Offensive and defensive equipment played a large role in the war.

The crossbow machine tends to be large-scale, "the big crossbow of China and North Korea, with 20 crossbows,.. Liu Yu attacked Lu Xun, and there were more than 10,000 crossbows in the army, and everything was destroyed."

The sword has been fitted with a long handle and used as a long weapon. The quality of the knife was also improved compared with the previous generation, and Pu Yuan made 3,000 knives for Zhuge Liang, and used this knife to chop the bamboo tube filled with iron beads, like chopping grass.

Later, there was a new breakthrough in quality, and the Eastern Jin Dynasty invented transverse steel to make swords, which were extremely sharp. The technology of filling steel was improved, and the quality of steel was improved, which was conducive to the manufacture of weapons.

The steel knife made by Qimu Huaiwen is said to be able to cut iron like clay. In addition to inheriting the knives, spears, and swords of the previous generation, the variegated weapons of ethnic minorities were also added, such as whips and maces.

A large number of brocades unearthed from the ancient tomb of Asta in the Western Regions can be seen in colors such as red, crimson, pink, yellow, light yellow, light chestnut, purple, royal blue, emerald blue, leaf green, white, etc., and the colors are extremely rich.

It is also worth mentioning that later, Jiangnan was famous for dyeing black, and the quality of the dyed black silk was quite high, and ordinary people could not afford to wear it, and most of it was enjoyed by the wealthy.

Ma Jun, whose name is Deheng, and Cao Wei, is from the southeast of Xixingping, and is an outstanding mechanical inventor. His outstanding achievements were the improvement of the loom and the invention of the rollover.

According to the book's note: "From time to time, there is a wind and a horse, and the ingenuity is peerless, and Fu Xuanxu said: Mr. Ma, the name of the world is also skillful." For a doctor, living in poverty is a change in thinking about the ayaji. A faint hint of displeasure flashed across his face.

The old silk machine has fifty heals for fifty healds, and sixty heals for sixty heals. Mr. suffers from his bereavement, but it is easy to twelve, its strange text is changeable, because of the feeling and the author, just like the formation of nature, the infinity of yin and yang. ”

Due to the improvement and simplification of the silk machine, the operation is easy and convenient, and the production efficiency is improved. This new silk machine was soon popularized and applied, which promoted the development of the silk weaving industry. Yang Quan's "Weaving Women's Fu" describes the silk weaver as "rhythmic and exciting...... Qu Shen shrunk, Shen Hou suppressed".

The raw materials for papermaking are mainly hemp materials, in addition to other bast fiber raw materials such as bark, mulberry bark, rattan bark, etc., and sometimes bark fibers and hemp are mixed to make paper. The expansion of papermaking raw materials is closely related to the innovation of papermaking technology.

Papermaking has been more refined in the process of degumming, lye cooking, scooping, rinsing, pulping, papermaking and other processes, such as smashing has been carried out more than once, and generally replaced the mortar with a mill, and the degree of pulping has increased significantly.

In order to improve the performance of paper, there is sizing technology, and the early sizing agent is vegetable starch paste, which is either mixed into the pulp, or brushed on the paper surface, and then calendered. In this way, the processed paper will not be inked or smudged when writing.

The movable curtain bed paper mold, that is, a movable bamboo curtain is placed on the frame, so that thousands of sheets of wet paper can be repeatedly fished out, and this advanced papermaking tool can copy a tight and uniform paper surface.

At first, the whiteness is poor, the surface is not very smooth, the structure is not tight, there are more fiber bundles on the paper surface, the fiber broom degree is low, the curtain pattern is not obvious, and the paper is thick.

Later paper has increased whiteness, smoother surface, more compact structure, fewer fiber bundles, obvious curtains, and thinner paper.

After the invention of papermaking, in terms of writing chronicle materials, paper was still used together with silk and slips, and paper was not enough to completely replace the slips. This situation has changed radically.

It has been possible to produce a large amount of white, smooth and square paper, and people no longer use expensive silk and bulky slips to write, but gradually become accustomed to using paper.

Eventually, paper became the dominant writing material, and the slip was completely eliminated. With the progress of papermaking, official and private paper mills were established in various places during this period. It mainly produces hemp paper, mulberry paper and bark paper.

Along the banks of the river is the rattan paper center. Because of the excellent rattan paper, it was once famous. However, hemp paper is still the main item in the south.

Fabric printing and dyeing technology is directly inherited from the previous dynasty. According to the book, in the previous dynasty, it was able to dye more than 14 colors.

There is Wuyi Lane in the south of the Qinhuai River, and it is said that the children of the nobles and the soldiers who lived here wore black silk clothes. The black silk produced in Nanjing is still well-known at home and abroad until modern times.

Bi Lan once "overturned the car" for sprinkling the road. This was about half a century before Ma Jun. But it is unknown whether Bi Lan's overturned car is the keel waterwheel of later generations.

At the same time, the students in Guozi School also began to get together in twos and threes, becoming regular friends with each other, and even the families behind several parties began to have intermittent contact.

The dump made by Ma Jun is undoubtedly a keel waterwheel used for agricultural drainage and irrigation. Its structure is exquisite, "irrigation is self-reliant, more in and more out", it can continuously lift water, the efficiency is much higher than other water lifting tools, and the operation is light and labor-saving, and children can operate.

Therefore, Ma Jun should be the inventor of the keel waterwheel, or at least he is the innovator who made a major reform of the overturned car after Bi Lan and used it for agricultural drainage and irrigation.

After the rollover came out, it was quickly promoted and has been used to this day. Before the invention of the modern water pump, the dump truck was one of the most advanced water lifting tools in the world, which played a huge role in irrigating farmland and developing agricultural production.

Later, Zu Chongzhi made and installed the internal mechanism of a guide car with only a shell and restored it, but there are books that record the internal structure of the guide car in detail. Based on this, people have a more specific understanding of the guide car.

Ma Jun also improved the repeater and the stone cart, and used the mechanical transmission device to create a hundred water-to-puppet puppets with wood as the wheel and water as the power.

During this period, there were also a number of outstanding mechanical inventors, who made outstanding contributions to the invention or improvement of various machinery, such as advanced agricultural processing machinery - animal power machine mill, water transfer machine mill, water power machine mill, etc.

So much so that Murong Wan'er now, whenever she thinks of a handsome son in the palace, she can't help but think of this matter, and the normal behavior between men is no exception to her, even Yi Xue.