In the roar of the thunderous machine, Li Su felt a little blood boiling all over his body, this is one of the most heavily defended forbidden places in Dengzhou City, there are two thousand guards stationed around all year round, anyone who wants to enter here must have a warrant from Li Su or Zhao Fu, if someone dares to break in without permission, he will be killed on the spot by the soldiers, and there is no emotion to talk about.

The reason why there is such a tight defense here, mainly because this is the steam engine manufacturing factory, when the steam engine was successfully developed, it immediately studied the large-scale manufacturing plan, and now it has begun to bear fruit, the manufacturing plant here covers an area of thousands of acres, there are thousands of craftsmen working here, and the power of various machine tools and instruments has also been replaced by a steam engine, although it costs a little more, but it has accelerated the production speed, and now it can produce thirty steam engines per month, and this is the reason why Li Su tried to suppress it, If you let go of production, it is not a problem to produce 100 units per month.

The reason why Li Su suppressed the production of steam engines is that the use of steam engines has not yet been popularized, and it is only a waste to produce too much, and secondly, there is still great room for improvement in the current steam engines, and instead of producing these backward steam engines, it is better to put a lot of power into the improvement of steam engines, and after the development of higher power steam engines, it is not too late to produce them in large quantities.

Yifan next to her yawned and stretched a long waist, last night she stayed up late to design the drawings of a new type of steam ship, and now she was pulled by Li Su to visit the steam engine production factory, naturally she hasn't woken up yet. And Li Su looked at Yifan, who was thin and weak, especially with two dark circles on his face, and his expression was a little haggard. At the moment, I felt a little unbearable.

"A sail, the steamship thing though important. However, your body is more important, and you should remember to combine work and rest in the future. Don't stay up late! Li Su shouted loudly with a serious face, the roar of the machines around him was too loud, if he didn't roar, even if he crawled in the other party's ear and said that the other party couldn't hear it.

When Yifan heard it, he smiled and didn't answer, but pointed to the busy surroundings and said in a loud voice: "Your Highness, look at how the construction is here, can it become the most important industrial base in my Datang in the future?" ”

Hearing the smug tone in Yifan's words, Li Su also laughed and said: "Yifan, the invention of the steam engine will open a new era, and Yifan's name will also become a milestone." Thousands of years later, others may not know who Li Su is, but if Zhao Yifan is mentioned, absolutely no one will know! ”

Yifan was stunned for a moment after hearing this, but then showed an expression of disbelieving, thinking that Li Su was joking with himself. It's a pity that she doesn't know that although Li Su likes to joke, this time he is telling the truth, think about the Watt in the future. Just improving the steam engine has been listed as an iconic figure of the first industrial revolution, and now Yifan has invented the steam engine from scratch and from existence to refinement. This kind of merit is enough to make her famous for eternity, and even Li Su can't compare to her.

Seeing that Yifan didn't believe it, Li Su didn't say much. It is useless to explain in other words, and it will naturally prove that his words are correct in the future.

Li Su watched as he walked. Yifan next to it is also constantly explaining, this factory has quite the atmosphere of a later generation of machinery processing factories. Among them, drilling machines, grinding machines and other processing equipment are very complete. In fact, these processing equipment Datang originally had, but it used to be manual, and most of them were wooden, but now they are all made of steel, and the power is also provided by the steam engine, and the processing speed is several times higher than before, but these instruments are still very simple, and there is still a long way to go compared with the processing equipment of later generations.

After turning around several assembly plants, Yifan took Li Su to an independent workshop, where the processing equipment in this workshop is mainly a drilling machine, mainly drilling a straight hole in the center of a solid steel rod to form a very solid steel pipe. This thing seems to be very simple, but it is really very troublesome to do, because the processing equipment is not standard, and the hardness of the drill bit is not enough, so the output of this steel pipe is not high, and the scrap rate is amazing, at most only four or five success rates out of ten, and the rest is either the hole is drilled off or the drill bit is broken into it, and it has no choice but to be used as waste.

"Your Highness, is it any good for you to let us drill these small steel pipes?" Yifan looked at the scraps that were piled up higher than the finished products and asked, the two delicate long eyebrows were already wrinkled, obviously not very understanding what Li Su wanted these steel pipes to do, after all, with the current technology, it is really difficult to make these steel pipes, and those scraps are the biggest proof.

However, Li Su smiled mysteriously after hearing this, picked up a finished steel pipe and looked at it in front of him, and found that the drilled hole was straight and smooth, which really met his original requirements, and then he said to Yifan with satisfaction: "Yifan, how much has this kind of steel pipe been produced, has it all been transported to Perak Island?" ”

Yifan couldn't help but roll his eyes at Li Su when he saw that Li Su didn't answer his question, but he still replied: "Your Highness, you let us produce this kind of steel pipe regardless of the cost, so we have produced a total of more than 4,600 pieces during this time, and they have already been sent to Perak Island." ”

Li Su heard that there were more than 4,000 pieces, and his heart was even more overjoyed, although these steel pipes could not all be made into the things he needed, but it is estimated that there must be at least a thousand, as long as there are these things, it is not a problem to sweep the Japanese country.

After visiting the steam engine factory, Li Su immediately asked Yifan to take him on a steamboat. And Yifan also came to the spirit, after all, this is her painstaking work, and it is also strongly supported by Li Su, so I have long wanted Li Su to take a look.

The steam engine factory was originally in the shipyard, not far from the shipyard that built the steam ship, Li Su arrived at the shipyard soon with a sail, there was a small wharf in the shipyard, and there were some ships that had just been built and had not yet left, Li Su took a look and found that there were more than a dozen of them, and among the dozen ships, he saw the steam ship at a glance.

I saw that this steamship is not very big, the head and tail are about seven zhang, it is a medium-sized ship, and the shape is similar to that of ordinary lucky ships, but the hull is thinner and narrower, and the draft is deeper, and the most special thing is that there is no mast on this ship, and it is impossible to have sails, which makes the deck look bare, and this is the reason why Li Su can see at a glance that it is a steamship.

At this time, the two also walked to the dock, Yifan pointed to the very narrow steamship, and introduced proudly: "Your Highness, please see, this is the steamship built by the little woman, at the beginning, according to Your Highness's prompt, let us use the car and ship as a template, and then we also built a few sample ships, although the effect is good, but the paddle wheel outside is very easy to damage, and the efficiency is not high, and later Your Highness put forward the concept of propeller, after our efforts, finally built this kind of propeller steamship!" ”

"Quick! Take me up and have a look! Li Su said excitedly, as a later generation, of course he knows the direction of the development of the steamer, before letting Yifan make a paddle steamer, and then make this kind of propeller steamer, although it took a little detour, but also accumulated a lot of experience, it is also very worthwhile.

The steamship had already received the news that Li Su was going to ride, so the personnel on board were ready, and Li Su's guards went up first to do a good job of safety protection, and then Li Su and Yifan got on the ship. And Yifan turned into a guide again, and took Li Su to visit the entire ship, and did not even let go of the boiler room in the cabin.

After the visit, Li Su immediately set sail for the steamship to go to sea, and the target was set on Perak Island, which happened to have many things to deal with on the island.

Seeing Li Su's excited appearance, Yifan also showed a satisfied smile, with her order, the steamship that had already been on fire let out a flute, attracting people in the shipyard to look at this side, and at the same time their eyes also showed excitement, they also knew that the strange ship on the dock without sails, and even many craftsmen participated in the construction of this ship, although these craftsmen did not know the meaning of this strange ship, but as a shipbuilder's instinctive intuition, they vaguely felt, That ship was a miracle born in its own hands.

In a louder whistle, the steamboat under Li Su's feet finally began to move, and Li Su on the boat also clearly felt the roar of the steam engine under his feet, and then the whole ship suddenly trembled, and then began to move forward slowly.

Seeing that the ship really slowly began to accelerate without sails and oars, Li Su just nodded with satisfaction, but the palace guards who came with him all widened their eyes, and they were all on guard with the hilts of their swords, as if this was the only way to give them a sense of security.

Li Su saw the nervous appearance of the guards around him, and couldn't help laughing, and then after saying something to let them relax, he walked to the bow of the ship with Yifan, feeling the speed of the steamship under his feet getting faster and faster, and all the ships encountered when he got out of the port were left far behind, which made Li Su even more excited in his heart, and at the same time, he had already begun to plan to establish a shipyard that really produced steamships, but this shipyard would not be built in Dengzhou, but would be built on the land he really controlled.

Perak Island is located ten miles outside the original naval camp, not very far from the ship city, coupled with the speed of the steamship, it quickly arrived here. Yifan has been to Perak before, but because the island is so secret, she can only operate on the outskirts of the island, and she has no access to the real core area.

As soon as their ships approached the only military port on Perak Island, many warships immediately surrounded Li Su's ship, and the giant crossbows and strong bows on the ships were all ready, and it seemed that they would attack at any time, until they saw Li Su standing in the bow of the ship, and the generals on these warships commanded the warships to leave very respectfully.

As soon as Li Su's ship arrived at the port, he immediately heard a thunderclap from the island, each of which was like a thunderbolt on a sunny day, but Li Su smiled when he heard it, and he named the island Perak Island at the beginning, but now it seems that he was really prescient. (To be continued.) )