Destiny Only Han

Chapter 569 Liu Ying: The essence of human civilization is to boil water!
"Black gold?"

Liu Ying was stunned for a moment, and suddenly realized: "It hasn't been dug out yet! After a while, the Huns who will go to the south to build the road will be in place, and my engineering team will be free to go north."

"But I've already drawn the blueprint, that's what I think."

"Jiuyuan County is sparsely populated and is located on the front line facing the Huns, so the emperor's palace is needed here as the front-line headquarters in future wars. The garrison is used as a fortress on weekdays, and we can come here in summer. To escape the heat..."

"Well, it's here!"

As Liu Ying said, she drew a few circles on the spread out map with her hands, including places such as the Dongsheng Coalfield of later generations.

Lu Wan leaned over to have a look, secretly speechless, he could understand the map, and naturally he knew how much land the random circles Liu Ying drew on the map occupied in real life.

Not only Lu Wan was taken aback, but Liu Bang was also stunned.

Liu Bang's shock at the moment was mainly because he was worried that Xiao He would call at his door...

With some shares in Salt Lake, you can also use the name of Shaofu to reap the benefits of mountains, rivers and swamps, and you can enclose land to build gardens, especially enclosing such a large place?
Well, last time he said that he wanted to renovate the royal gardens of the Qin Dynasty, and then let those people who invaded the garden land move out and exchange the land back, Xiao He blocked him in Weiyang Palace and scolded him...

Liu Ying peeked over and saw that Liu Bang seemed to have turned into a retired performer, so she said in a somewhat disdainful tone: "Father, you are not afraid, are you?"

Liu Bang stiffened his neck: "Afraid? You don't go to Pei County to inquire about it. Who am I, Liu Laosan, afraid of?"

Well, in fact, he is afraid, but he can't say he is afraid, he just respects it.

In recent years, under the influence of Xiao He, Lu Zhi and others' persistent Huang Lao thoughts, as well as reflections on the demise of the Qin Dynasty, Liu Bang has already agreed with the idea that as a monarch, he should always restrain his desires.

and so……

Liu Ying shook her head lightly: "It's not that we're really repairing the garden, we're just using the purpose of repairing the garden to encircle the land. If you think the name of repairing the garden is not good, you will be scolded by my teacher and my mother. Let's just turn the place into a hunting ground and a training ground for the imperial court to train cavalry!"

As he spoke, he drew several circles on the map, including the Mu Us Desert of later generations.

Well, this is the place he decided to use as the martial arts arena.

The Mu Us Desert in later generations was still a green grassland at this time, and there was even a large lake called Sheyanze by Lou Fan, with lush water and grass, full of yellow sheep and wild deer.

The formation of desertification, at most, is only three parts of natural disasters, and the remaining seven parts are man-made disasters.

The culprit is none other than Emperor Kangxi, who was called the holy ancestor by the Qing Dynasty!
In the early Qing Dynasty, although the area of ​​desertification in the Mu Us Desert was larger than that in the Ming Dynasty, it was still intermittently distributed, and the riverside, lakeside and low flat beaches were still green lands such as grasslands, pastures, hills and swamps.

Until the 36th year of Kangxi (1697), the imperial court ordered the reclamation here, which eventually made the grassland gradually shrink.

As a result, the desert expanded rapidly, and the wind and sand once threatened Yulin Mansion, Yan'an Mansion and the eastern part of Ningxia!

The result of this is that the amount of sediment in the Yellow River increased sharply, and then accumulated in the middle and lower reaches of the Yellow River. As a result, during the Qing Dynasty's 200-year rule, the total number of Yellow River overflows, bursts, and migrations reached more than 480, accounting for this since the Xia Dynasty. One-third of the total number of dike breaches in more than 4000 years!

Of course, such a large proportion is also due to the fact that the Qing Dynasty has the most and most detailed records, but this number is still terrifying!

Therefore, Liu Ying circled this area as a martial arts arena, which can be regarded as a precautionary measure.

And Liu Bang looked at the map of the painting circle, and felt a little relieved. The garden was built for his personal enjoyment, and the martial arts field and hunting ground were built to maintain the combat effectiveness of the army and the martial arts of royal family members and noble ministers. wind!

Especially in the circled cavalry practice arena, although Xiao He is the prime minister, he has no right and cannot interfere!
After all, military power, in the classical military country of the early Han Dynasty, except for the permission of the emperor himself, whoever touches it will die!

However, although Liu Bang nodded slightly, but from the corner of his eyes, he glanced at Liu Ying's expressionless face, but in his heart, he raised his little brat's scheming level to another level.

In his opinion, the shitty building of gardens and resorts is nothing more than an unreliable excuse for the purpose of performing martial arts and hunting grounds!

Just like the counselors in those stories told by Liu Ying, when they come up with ideas, they usually talk about three strategies...

After Liu Ying reached an agreement with Liu Bang, she put away the map on the saddle with satisfaction.

The Dongsheng Coalfield he wanted to circle was in preparation for a sharp weapon that he was going to make in the next step.

Steam engine!
This kind of machine brought the driving force needed for the first industrial revolution of mankind, and completely liberated human and animal power!
Its schematic diagram is familiar to everyone. To put it simply, it is an enlarged version of a boiling kettle. The boiled steam is introduced into the cylinder to push the piston and connecting rod to convert heat energy into mechanical energy.

Well, a steam engine doesn't need rubber as a seal.

First of all, rubber is mainly used for static seals, and is rarely used for dynamic seals. The important thing is that in the years when the steam engine was invented, vulcanized rubber technology was still a thing of the past.

Until World War II, the sealing material of steam engines was not rubber. Cast iron rings, graphite rings, and asbestos ropes were commonly used for piston rod sealing.

The most important factor restricting China from inventing the steam engine is God's disapproval.

Just as the craftsman-spirited Germany did not invent the steam engine, the Enlightenmentist France did not invent the steam engine, and the Renaissance Italy did not invent the steam engine.

The reason is that there are no shallow coal fields in the birthplace of civilization in these countries!

Just like someone once said, if the capital of China was not Chang'an, Bianliang, or Beiping, but Ordos or Xilinhot, I'm afraid there would have been a steam engine long ago!

After all, the early steam engine, that is, the Newcomen machine, was not something with a high degree of difficulty, and its main function was to pump water.

Shallow coal almost has the attribute of "easy to be natural", and it needs to be watered continuously to prevent the coal from being burned by the wind.

And in this way, the surface water becomes black and undrinkable.

Therefore, it is necessary to use a steam engine to continuously extract clean water from the ground for drinking.

If it is only for pumping water in the mine, the human-driven water pump is actually sufficient. After all, the workload of manual coal mining is not large, and the amount of water seepage is naturally not large, so there is no need to waste the hard-earned coal in vain.

And this is why Da Ying first invented the steam engine.

After all, there are shallow coals everywhere on the British islands, and many shallow coals in the UK are buried only two meters deep!
It is no exaggeration to say that, just like those big dogs who can pump oil by just inserting a pipe in the ground, the British can dig a coal seam by digging a cellar at home!

Such a cheap and easy-to-obtain thing, it is not stingy to use it to burn water and keep drinking water healthy.

Well, due to the geographical location of the British Isles, the coal seam contains a lot of water. The first Newcomen machine that appeared was most important for drainage, followed by drinking.

But later, as the price of coal rose, the rich and powerful British were reluctant to use the Newcomen machine, which eats more and works less, to consume coal that can be sold for money.

Thus, there was Watt's improved steam engine.

Because of this, Liu Ying, who stands on the shoulders of giants, will naturally not take the route from the Newcomen steam engine to the Watt steam engine, and then to the improved steam engine...

Well, mainly there is a system...

Therefore, before planning the Northern Expedition, Liu Ying drew a detailed design drawing down to the millimeter, and asked the large group of Mohist disciples who recruited the most exquisite handicrafts to teach the engineers to start imitation.

After all, he worked out the power system early on. Although the power supply is not very stable, the power it can release is much greater than that of a machine driven entirely by water!
The water turbine generates electricity to drive the electric boring machine, which can be used not only to make gun barrels, but also to make the most difficult part of the cylinder of the steam engine!
Watt was able to improve the steam engine because of the barrel boring machine invented by the British Wilkinson in 1774!
Therefore, after the biggest problem was overcome, Liu Ying's first trial product was a high-pressure steam engine with double connecting rods and sliding valves. Compared with Watt's improved version, the difficulty was not much improved, but the overall performance soared a lot. !

He just waited for the construction team to enter the coal field, and then he could start installing the experimental steam engine.

And Liu Ying's next step, which is to build a railway from the coal field to Chang'an, will go very smoothly!

This is all thanks to two people, Emperor Shi Huang and Meng Tian.

Under the order of the first emperor, Meng Tian attacked the Xiongnu in the north. After finishing the work, he built a road to Jiuyuan (northwest of Baotou City, Inner Mongolia) in the north and Yunyang (northwest of Chunhua, Shaanxi Province) in the south.

That is Qin Zhidao.

On this road, the mountains and valleys were cut, and the road was rammed with loess very firmly, so Liu Ying only needed to lay down rails and sleepers step by step, and a main railway line leading directly to the northern border of the empire would be created!
This is not only used to transport materials such as coal, but more importantly, to transport troops.

Once there is a change in northern Xinjiang, the elite troops from Guanzhong will be able to rush to the battlefield within three to five days!

....................................

In the north of Chang'an City, beside the Weishui Bridge.

Today is the day when the army returns to the south, and the people around Chang'an City, the old and the young, came to welcome their relatives and join in the fun.

Liu Taigong is no exception.

So watching Liu Ying who jumped off the horse, stumbled, and ran towards Grandpa Liu, crying, alarm bells rang in Liu Bang's heart.

He looked back at Lu Wan and saw the same thought.

"You hold on, I'll withdraw first!"

(End of this chapter)