"We've discovered yet another thing that can be used to pave roads."

Wang Lin started to explain, but many people didn't understand.

"During the process of preparing coal char, we discovered that there was a pungent dark brown viscous liquid, which was similar to petroleum, but not..."

"Then we fractionated it as usual."

Distillate is an important method of processing petroleum, and it is the component distilled within a certain temperature range.

Daning's craftsmen have already mastered this technique, which is also the most basic method.

Guan Hongzhao listened carefully.

He has heard his father talk about these things since he was a child, and he also knows some of them.

There is a special workshop in the imperial palace, and my father and Liu Niang often go in to study and tinker with these things.

If Guan Ning were here, he would know that this dark brown viscous liquid is coal tar, a by-product of coking.

"Because it was discovered during the preparation of coking coal, we call it coal tar. After the distillate, several products are obtained."

Wang Lin said: "I didn't bring the product. It's probably a kind of yellow-brown light oil. We have tested its use and found that it is very good for making lamp oil. It only requires a cotton sliver. It is much better than the current lamp oil."

It’s very useful.”

“Is it easy to produce?”

Guan Hongzhao knew that since Wang Lin had said this, he must be right. The Ministry of Works focused on rigor.

"It will be ready for mass production in about one or two months!"

"I'm going to take a look. If it's true as you said, Your Majesty will definitely award the person who discovered it a merit plaque."

Since ancient times, everyone has pursued light.

Whoever can bring light will be remembered by the world.

Wang Lin's chest straightened up even more, and he looked at the others with a sense of pride.

Merit medals are medals!

Under the wanton enfeoffment, the titles and fiefdoms were almost in ruins. Merit and reward cards were the highest pursuit. The civil and military officials in the dynasty could only get very few, but the craftsmen of the Ministry of Industry took them one after another.

"What does this mean? It will take another month to open your eyes!"

Wang Lin thought to himself, and then continued: "After the distillation, there is a dark brown mixture left, which is impermeable and insoluble in water. After testing, it is excellent for paving roads. It is very similar to black oil, but it is viscous."

Shape, we call it oil sand!”

"It's the same as cement. It can fill joints and apply outer layers, but it's softer than cement..."

Wang Lin spared no effort in introducing, but seeing the slightly confused looks on the others' faces, he added: "We have paved a road, just outside Yuanwu Factory..."

Yuanwu Factory was the first large factory after the founding of the New Dynasty.

"good!"

Guan Hongzhao said: "Discovering new things to replace old ones is progress. I will go and have a look tomorrow."

"Then what is the second method you mentioned?"

“Build a rail car!”

Wang Lin said another new word.

"This rail car has actually been used in mining areas and government factories for a long time. It is to lay special tracks, four wheels are stuck on the tracks, and it is pulled by manpower or horse power."

Everyone felt fresh when they heard it. It was not a complicated thing, it could just be imagined out of thin air...

"Can't this be used on a large scale by civilians?"

At this time, Fei Tian, ​​Minister of the Ministry of War, said: "The biggest problem with wooden rails is wear and tear. The wooden wheels and rails will need to be replaced soon..."

"What Mr. Fei said is absolutely true."

Wang Lin continued: "So we made improvements and built the wooden track into upper and lower parts. The lower part is the support part, which we call sleepers. The upper part is the wooden rail surface. Even if it is worn, the wooden board is better than the track.

Easy to replace.”

"This is a nice improvement."

Fei Tian nodded in approval, but also said with regret.

"Even so, it can only be used in mining areas and official factories... and cannot be used on a large scale."

Whether it is a track or a flatbed, it is impractical when running long distances.

What he thought was that rail cars could be used to transport military supplies, which would save time and manpower.

If an army of 100,000 people goes out to fight, the number of civilians who can be recruited may need 200,000.

Many people talk about dispatching millions of troops, but in fact only half of them actually participate in the war.

"Unless it is paved with steel, this is simply impossible!"

Fei Tian continued: "Steel is heavy and heavy, and it may not even have the horsepower to pull it, so it is meaningless, and it costs too much. A knife and a hoe are both precious, so how can it be possible to invest in such a large new railway track?"

“Unrealistic!”

Wang Lin looked at Fei Tian in surprise. He was a knowledgeable man, and then he said, "Master Fei, did you ever think about it before the firearms camp appeared?"

Fei Tian was slightly startled.

Then he said: "Yes, Your Majesty has always been a miracle worker."

"Two months at most, when His Majesty comes back, you will see what a shock it is!"

Wang Lin gave up and ended the report.

It makes people daydream and a little jealous.

The Ministry of Industry is no longer what it used to be, and the stepmother has become a biological son.

Subsequently, the Ministry of Punishment also began to report, counting the achievements of the past year, and local security has been included in the examination. The Minister of the Ministry of Punishment is also the chief official of the General Administration of Public Security, with very heavy powers and responsibilities.

After the Ministry of Punishment reported, it came to the Ministry of Rites. The Ministry of Rites was in charge of teaching, and Meng Hong continued to report for nearly half an hour.

This is not just a report, but also an inquiry... I had lunch here at noon, and then continued, next to the Ministry of War, and then to the Metropolitan Procuratorate.

One after another, it was night soon.

"Now that everything has been said, I might as well say a few words."
Chapter completed!