Iron Dynasty

The wound on the middle finger is still aching.

Bei Shan still had a fresh memory of the humiliation he suffered in the Battle of Jizhou. The blood wolf tribe lost more than half of the last fiasco, and the guilt of losing Shanhaiguan made his father Khan furious.

If it wasn't for his mother and the leader of the Tula tribe to plead for mercy, he would have to use his life to atone for his sins instead of cutting off the three fingers of his left hand.

After that, he was ordered to surrender his military power. Now he can only live in Goryeo and nominally supervise this vassal state.

Forget it, it's not his fault. King Qi of the Great Yu Kingdom is not so easy to deal with. Bei Shan forcibly suppressed his anger, and rolled his eyes. With his sensitive sense of war, he felt that a war seemed to Getting closer.

When King Goryeo heard the words, he shouted to Park Zhenghao, Bei Shantai has kindly spared you all, and I will step down without thanking you.

Deputy General Jin immediately kowtowed, and Park Zhenghao also knelt down.

Turning his head to look at Bei Shan's thoughtful expression, King Goryeo breathed a sigh of relief. He really didn't want to punish his generals for this matter. After all, they were his generals no matter what.

At this time, Bae Shan looked at the sea in the south and said to the King of Goryeo, How long does it take to get from here to Dengju?

Back to Taiji, it's very close to Dengzhou. It takes a day to reach Dengzhou by boat. King Goryeo said cautiously.

One day? Bei Shan's eyes flashed strangely, and he continued, How many soldiers can your navy transport at one time?

10,000 people is still fine. The King of Goryeo suddenly had a very bad premonition.

Nodding lightly, Bei Shan said, It's too few. From now on, you guys in Korea will use all means to step up shipbuilding and prepare for the Golden Horde to send troops to the Great Yu Kingdom.

The King of Koryo trembled in his heart, and he asked nervously, Is Tian Khan ready to go south?

The north is getting colder and colder. Many of our cattle and sheep freeze to death every year. Recuperation is a piece of shit. If we don't go south, our people will starve to death. Bei Shan sneered.

Although his rashness led to the failure in Jizhou and the loss of Shanhaiguan, he has been pushing the Golden Horde to go south, and now the leader of the tribe on the grassland finally understands that his decision is correct and is planning a plan to go south.

It's just a pity that he can no longer continue to lead the army now, and can only let other Taiji set foot on the land of the Great Yu Kingdom first.

But despite this, he never let go of his hatred for Xiao Ming for a day. He has been waiting for the day when he can take revenge, and now he sees hope and has a wonderful plan in his heart.

...

Dengzhou.

Xiao Ming really enjoyed the pure and natural Haizhen of this era once, and licked his lips incessantly, showing a satisfied smile.

This time, he let the fishermen go out to fish for abalone not purely for his own enjoyment. His real purpose was to find a trading point for Dengzhou. There is no doubt that these sea treasures will become another income after salt.

Now the fiefs need development and money is needed everywhere. Qingzhou's industry, Youzhou's agriculture and animal husbandry, and Dengzhou rely on the sea to eat the sea. At present, he values ​​these three places the most.

After tasting the abalone, Xiao Ming tasted other flavors of seafood in Dengzhou in the next few days.

During the period, he did not idle, but inspected the situation of coastal defense. After he left Dengzhou last time, the soldiers of the construction battalion arrived in Dengzhou. They built hundreds of forts along the military port, and these forts will be equipped with heavy artillery. Used to defend against attacks from the sea.

In addition to the military port, Yang Chengye also selected some coastlines that are easy for the army to land on to build coastal defense forts. Now Dengzhou has a very important strategic position and has to focus on defense.

In addition to the fort, Xiao Ming also inspected the situation of the salt field. Now, with the help of the construction camp, some salt fields with concrete floors have been built in the salt field. When Xiao Ming arrived at the salt field, hundreds of salt fields were drying salt. out of bounds.

The salt workers in the salt field came and went, and some of the salt in the salt field was piled up into a salt mountain, a piece of white flowers. Seeing these salt mountains, Xiao Ming laughed happily.

His Royal Highness, since we used this seawater to dry salt, the salt production of our salt farm has increased more than 100 times. Now let's not talk about the salt in the fief, it is not a problem to export it now, and after our sea salt is filtered and purified, the salt of this salt is The quality is more than a little bit higher than that of domestic table salt. It can be said that our table salt has completely reached the level of tribute salt. Yao Wenyuan said excitedly.

Yang Chengye said with a smile: His Royal Highness, Yao Wenyuan's words are not bad. When we were representing the country, our Dengzhou salt was sent to the palace as tribute salt.

Nodding with satisfaction, Xiao Ming was even relieved. He said, Since this is the case, the king will let the Chamber of Commerce come to Dengzhou to bring the salt back to sell.

Yang Chengye and Yao Wenyuan were overjoyed, they were all looking forward to increasing Dengzhou's finances through this salt.

After half a month of patrolling and playing in Dengzhou, Xiao Ming and Fei Yue’er set off for Qingzhou the next day. After all, in Dengzhou, he has dealt with everything that should be dealt with. This time, he will need the Chamber of Commerce to transport salt. .

His ambition is very big, to occupy the market of Da Yu country with the salt of Dengzhou.

After three days, Xiao Ming and Fei Yue'er arrived in Qingzhou. The two had just entered Qingzhou City when Lin Wentao, who had heard the news, rushed over.

Xiao Ming asked Fei Yue'er to go back first and asked, What's wrong? Lin Wentao, is there something wrong with your steam engine?

Lin Wentao said with a smile: Your Highness, there is no problem with the steam engine, but in just one month, I converted the steam engine from the basic Newcomen steam engine to a duplex steam engine.

Double steam engine? Xiao Ming said in surprise, but since Lin Wentao developed the Newcomen steam engine, he had a faint feeling that the double steam engine was not far away, but he did not expect this transformation would come so quickly.

However, this is understandable. After all, the development of the Newcomen steam engine means that the problems of cylinders, cylinder plugs and connecting rods have been solved, and the compound steam engine is just a small transformation on the Newcomen steam engine.

Generally speaking, in order to make the steam engine turn efficiently, the piston must be continuously reciprocated. First, let the hot steam enter the cylinder, which can push the piston upward.

This is followed by the downward movement of the piston, which requires the steam entering the cylinder to rapidly condense to reduce volume and pressure.

Before Watt improved the steam engine, the Newcomen steam engine was to inject cold water into the cylinder, but this would reduce the temperature of the cylinder itself, so that the next hot steam entering the cylinder would lose heat, and the efficiency was very low.

So Watt discovered this drawback when repairing this kind of steam engine, so he thought that since the water vapor was cooled down and he did not want the cylinder to cool down, it would be fine to let the water vapor come out of the cylinder and then cool it down.

After all, these are all connected, and the air pressure in the cylinder can also be reduced.