Just thinking about it, Li Tai sent the ministers out of the hall, turned back, and greeted him with a salute.

His Majesty Li Er looked at the big fat son, his mood improved again, let Li Tai sit down, and asked with concern, "Is Qingque a meal?" ”

is so fat, and asked him if he has eaten, it can be seen that the little chubby dun in the world is fattened by parents who care too much about pampering.

Li Tai hurriedly replied: "The ministers invited Xu Kucheng to discuss matters in the mansion, and arranged a light dinner to entertain them. As soon as he sent Xu Kucheng away, he heard that his father was angry. Fearing that his father would be angry, his sons hurried over. ”

His Majesty Li Er was very pleased, this fat son was so filial, and he was worried that he would be angry, so he rushed here in the face of the sun and sweating.

"What did you ask Qi Lin to discuss?" His Majesty Li Er beckoned the palace people to quickly wipe Li Tai's sweat and water, and asked casually.

Li Tai told the truth that he was experiencing difficulties in movable type printing, and he saw if Xu Qilin had a way.

His Majesty Li Er bowed his head slightly and said, "If you talk about whimsical ideas, Qi Lin is indeed beyond the reach of few people. Well, this ink, it sounds doable. ”

Li Tai said: "Xu Kucheng just pondered a little, and then found the crux of the problem, and thought of a solution, which is really admirable. ”

"If you haven't succeeded yet, you don't have to rush to praise him." His Majesty Li Er showed a teasing smile on his face and said, "This kid, I didn't take the opportunity to ask you for any reward, did you?" ”

Li Tai laughed and said, "I didn't ask for a reward, he just offered to buy a set of lead molds, and Erchen has already agreed." ”

"He's going to print books?" His Majesty Li Er shook his head and said, "A set of lead molds is worth a lot of money, this kid won't spend his own money, he must ask me for it." ”

Li Tai pondered for a moment and said, "The minister will give him a set, as long as it is used in the public office, it doesn't matter." ”

His Majesty Li Er looked at Li Tai a little strangely, not knowing how he would take out the money.

Li Tai hurriedly explained: "Because the son's ministers are repairing the mansion, there are already ministers who have advised their fathers. Erchen wanted to save this money and do something more useful. ”

"That's very good." His Majesty Li Er nodded again and again with great satisfaction, and said: "Han Dongping Wang Cang called 'the most good and happy', may my son be the will." ”

"The sons and daughters obey the teachings of their father, and dare not forget it." Li Tai bowed respectfully.

His Majesty Li Er smiled, very satisfied with the performance of the big fat son today, but he was still reluctant to let him go, and chatted casually.

…………….

The workshop outside the city has only set up a few sheds, and the work of building the foundation and building the house is busy, but a large area has been fenced, which does not prevent Xu Qilin from starting to experiment with wool weaving.

Several sinks are lined up, and after the sheared wool is weighed to a certain length, the wool washing process is carried out in these sinks.

Even in the experimental phase, the data must be recorded in detail and carefully. How much concentration of caustic soda water to use, how high the temperature of the hot water is. In the absence of precise measuring instruments, only the amount of material used and the proportion of the mixture to warm water can be recorded.

After Xu Qilin explained to his subordinates, he did not stare at this simple process, but explained the drawings he had drawn to a few craftsmen so that they could build a pedal carding machine.

"It's like a pegboard, but the nails aren't very long." A craftsman looked at the steel nail comb on the drawing and asked Xu Qilin suspiciously.

Xu Qilin nodded and said, "What you said is right, it is a shrunken nail board to remove the grass debris in the wool and comb it straight." ”

In fact, the whole production process of wool spinning is not complicated, the Tang Dynasty with strong experience in silk weaving, spinning, weaving is not difficult, some ready-made machinery can be slightly transformed, that is, washing, carding is more technical.

The successful manufacture of the carding machine also saves the energy and time of the carding machine in the future, which can be described as killing two birds with one stone.

After answering the questions of the craftsmen, the craftsmen went to make the same. Xu Qilin sat under the shed, sipping tea, thinking about inviting Song Yingxing's grandfather to come up, with a copy of "Heavenly Creations", he could stand proudly in the Tang Dynasty, with a far-reaching reputation and invincibility.

After all, "Heavenly Creations" represents the highest level of science and technology after a thousand years, and also covers everything, such as machinery, bricks, ceramics, sulfur, candles, paper, weapons, gunpowder, textiles, dyeing, salt making, coal mining, oil extraction and other production technologies, known as "China's 17th century craft encyclopedia".

But this is not what we have to do now, and we can only do it the same way, Xu Qilin is still pointing to this promotion to make a fortune!

As for the newly received task ink, there is no difficulty for Xu Qilin. Replacing the binder from water to oil is almost as easy as making ink ingots.

Of course, Xu Qilin seems to be able to only choose tung oil as a connecting material. Such a single choice made him still not satisfied.

Soybean oil may also do, as well as other vegetable oils. Thinking like this, Xu Qilin found that in the Tang Dynasty, there were very few types of vegetable oil, and flax was a relatively large oil plant.

If coal tar could be used, it would be the most economical, right? Xu Qilin closed his eyes slightly, and began to think about where to dig coal in the chair.

Just thinking about it, I heard people shouting horses and neighing on the official road in the distance, and a large group of people were dressed in fresh clothes and angry horses, as if they were traveling back to the city.

Xu Qilin didn't care, it didn't matter who he was, and he didn't get in the way of his own affairs.

In fact, Xu Qilin has long thought of coal, and it is warmer to burn the kang in winter. He also inquired about it, and although there is charcoal for sale on the market, the amount is very small, and the vast majority of people are not used to using it.

When it comes to where there is coal, Xu Qilin certainly knows the approximate location and knows the large open-pit coal mines. However, according to the transportation capacity of ancient times, without trains and automobiles, the distance is too far and loses its practical value.

According to Xu Qilin's estimate, a coal mine can cover an area of 3,500 miles at most, and if it is farther, the freight alone will kill you.

Following this line of thought, Xu Qilin began to screen from the surrounding areas of Chang'an one by one. Soon, he fell in love with Tongchuan and Weinan, both of which are good places rich in coal resources.

Tongchuan is less than 200 miles north of Chang'an, Weinan to Chang'an is about 150 or 60 miles, and there is also the Wei River that can be transported by water, which should be more convenient.

Well, it's time to go to the Ministry of Industry and invite a few exploration experts to Weinan to find "black gold"! Xu Qilin waved his hand to drive away a few small flying insects, and made a decision in his heart.

The noise was closer, and the group of people on the official road did not rush to the road, but stopped and pointed in this direction. Afterwards, several knights came on horseback.

Xu Qilin didn't know what was going on, so he got up and looked.

An official named Wen Ren greeted him, spoke to the rider across the fence, and then nodded his head very respectfully. Then, the official hurriedly ran over to report to Xu Qilin.