Tesla, the eldest, then said, "Okay, it's not good to always let the guests stand at the door, let's all go upstairs." At Huo Lan's invitation, Fang Xiaoyu followed him up to the second floor.

As soon as he came to the second floor, Fang Xiaoyu suddenly found a room full of copper wires and some iron pieces and other things. Fang Xiaoyu pointed to the room and said in surprise: "This is ......" Huo Lan looked back and explained: "That's the eldest brother's laboratory." Fang Xiaoyu asked, "Can you let me have a tour?" Tesla nodded and said, "Of course you can, but what I have studied is rather strange, and not many people appreciate it." ”

Fang Xiaoyu walked into the room and found that the bookshelves in the room were full of books, and there were some messy drawings piled up on the table, and those copper wires and iron pieces were scattered on the ground, posing in some strange shapes. Fang Xiaoyu lowered his head and picked up a piece of copper wire and asked, "You are studying electricity?" Tesla was surprised: "Do you also know how to do electricity?" Unfortunately, I can't make it yet, and I can only get it through lightning, but I can't store it, which makes my research very difficult. ”

Fang Xiaoyu said with a smile: "If you want to get electricity, you don't necessarily need to use lightning, after all, lightning is too dangerous. In fact, there are two safe ways to obtain electricity, one is through magnetoelectric conversion, which relies on a coil to cut magnetic field lines to obtain electricity, and the other is to convert chemical energy into electricity. ”

Later, Fang Xiaoyu relied on his previous high school physics knowledge to introduce Tesla in detail the relationship and role of the stator, rotor and coil in the generator, and then talked about the famous practice of voltaic batteries, that is, using a wet rag containing salt water, sandwiched between a round plate of silver and zinc, and piled up into a cylindrical shape.

The more Fang Xiaoyu explained Tesla's eyes, the brighter he became, and when Fang Xiaoyu roughly said his knowledge of electricity in one breath. Tesla exclaimed, "You are such a genius, please allow me to follow you and be your student." ”

Fang Xiaoyu said with a smile: "How dare this, I just have some ideas, as for whether I can succeed, I don't know if I can work, if you don't dislike it, you can work in my place, I will provide you with the best environment." "Others don't know the value of Tesla's research, but it doesn't mean that Fang Xiaoyu doesn't know how much he wants, for such a talent, Fang Xiaoyu wants as much as he wants, so Fang Xiaoyu began to tempt this pioneer of electricity in the Western Continent to come under his command.

Tesla said: "Okay, I must go, I hope to get more inspiration from you." Tesla agreed without even thinking about it, and he was very happy to be close to this person who easily solved the problem that had given him a headache for a long time.

Fang Xiaoyu turned his head again and asked Benz and Holland, "Are you two going back with me?" Holland and Benz looked at each other, and Benz spoke, "If you can come up with some valuable ideas in our two fields of study, we will agree." Fang Xiaoyu smiled: "Of course, there is no problem. First of all, your gas engine, can you show me first? ”

Benz brought Fang Xiaoyu into his lab as well, and an ugly iron machine was sitting on a large table. Fang Xiaoyu walked closer and carefully confirmed that this gas engine really had the prototype of an internal combustion engine.

Fang Xiaoyu said: "If you want me to give an opinion, I can only say that this idea is good, but it is really not appropriate to use gas as the energy source of this kind of machine, because gas is easy to leak and cause explosions, you have to find a more non-volatile fuel, it just so happens that I know that there is such a fuel." ”

Benz was surprised: "What can replace gas, and be safe." Fang Xiaoyu asked, "Do you know that there is a black oil in the Dao that can be burned?" Benz shook his head and said, "I've never heard of such a substance, is it a liquid coal?" Fang Xiaoyu shook his head and said: "That's a completely different thing, this kind of black oil I call it oil, and after a special refining method, gasoline and diesel can be refined from oil." These two oils are fuels that can replace gas. ”

Later, Fang Xiaoyu roughly told Benz about the theoretical knowledge he learned in physics classes about cylinders, spark plugs, gasoline ignition and diesel compression ignition. Benz nodded again and again: "Great, I have decided that I must follow you." Looking at the excited Bentz, Holland next to him was also full of hope, and he smiled: "It seems that my two good friends have decided to follow you, so what do you have to rely on to convince me?" You should note that the theoretical knowledge just mentioned is not enough. ”

Fang Xiaoyu just seemed to arouse Huo Lan's interest, and talked to him about some very simple principles, which had no practical application at all, and now when it was time to recruit him, Fang Xiaoyu naturally wanted to come up with some real things: "First of all, I want to ask you, what do you think is the biggest use of this kind of underwater diving boat?" Horan said without hesitation: "Of course it's war, isn't it wonderful when you suddenly attack the enemy when he can't see you?" ”

Fang Xiaoyu smiled: "Since you are not against the war, this is easy to say." "For submarines, Fang Xiaoyu doesn't know much, but he is used to reading naval books, he knows more about submarines than about electricity and internal combustion engines, although it still belongs to the category of theoretical knowledge, but those water tanks, horizontal wings, periscopes and other forward-looking specific designs in this era have completely indulged in what Huo Lan said, and the last thing is, of course, that the three of them unanimously decided to follow Fang Xiaoyu back to the Lanfang Empire.

Since all three of them could speak Chinese, the hired translator was dismissed by Fang Xiaoyu, and Fang Xiaoyu and Elena, who stayed behind, chatted with Tesla and the other three for a whole afternoon. In fact, most of the time, Fang Xiaoyu was there alone talking about all kinds of novel knowledge like a speech, and these novel knowledge not only made Tesla and the three of them listen very fascinated, but also made Elena, who had been silent, listen to it beautifully, and cast appreciative glances at him from time to time.

Just when Fang Xiaoyu was spitting and his mouth was dry, a pure Chinese tone said, "What? Got a guest at home? Fang Xiaoyu turned his head, and a standard Chinese youth was standing at the door of the living room. Huo Lan said: "Dear Xu, have you already gotten off work?" The young man said, "Yes, it's five o'clock, and you haven't cooked?" Holland patted his head and said, "Oh my God, I was so involved in talking that I forgot to cook, as if we even forgot lunch." ”

Fang Xiaoyu patted his stomach and said, "Yes, as soon as you say that I am also a little hungry, let's find a restaurant." The young man saw Fang Xiaoyu's pure Chinese face, and when he heard the pure Chinese in his mouth, he felt a kind of warmth like meeting a loved one. It was an instinctive feeling for a person far from home to meet a fellow villager, and he smiled and asked, "Is this your guest?" ”

Huo Lan introduced: "This is Fang Xiaoyu from the Lanfang Empire, and by the way, he is also the army colonel of the Lanfang Empire. The young man said, "People from the Fang family? That's a big family. Then he introduced himself: "Hello, my name is Xu Shouchang, I am from Jinhua County, and I have been in the Nantes Empire for eight years. Fang Xiaoyu shook his hand cordially and said, "Hello, it really feels kind to see Chinese people here." Listening to Fang Xiaoyu's words, Xu Shouchang nodded sympathetically.

Fang Xiaoyu said: "Let's go to dinner first, let's talk while eating." Since they hadn't eaten for a day, everyone was really hungry, so they came to a nearby restaurant, and Fang Xiaoyu asked for a private room. In a few moments, hot steaks and pizzas were served, along with a bottle of wine.

Pouring wine, Huo Lan raised his glass and said, "Come, toast to our beautiful tomorrow." Holding the wine glass, Xu Shouchang was puzzled: "Huo Lan, why are you so energetic today?" Holland smiled: "Because I finally found a boss who appreciates my talent, and he is my dear Fang." Xu Shouchang glanced at Fang Xiaoyu in confusion and said, "So you decided to be hired with this Colonel Fang in the future?" Benz continued, "It's not just Holland, all three of us have decided to be hired by him. ”

Fang Xiaoyu said: "I heard that Mr. Xu is a warship designer? Xu Shouchang nodded and said, "Yes, I am employed by the Naval Design Institute of the Nantes Empire. Fang Xiaoyu asked, "Have you ever built a warship yourself?" Xu Shouchang shook his head: "No, these Gauls are not willing to let aliens interfere in the construction of warships at all, they think that aliens will use their hands and feet on their weapons, which is really a typical paranoia of victimization." ”

A ship designer with the idea of building ships in the Western Continent was what Fang Xiaoyu needed most at the moment, and he immediately recruited: "If I hire you to build warships, will you give up your current job?" Xu Shouchang thought for a while and said: "Yes, you can never build a truly powerful warship in the design room, and only practice can make my design more perfect." ”