"Brother Yu, I will miss you very much." Xia Tingyun lost her usual liveliness, and said goodbye to Fang Xiaoyu with tears in her eyes Since becoming Fang Xiaoyu's fiancée, she has become more and more attached to Fang Xiaoyu. Fang Xiaoyu said with a smile: "Don't cry, it's like life and death, you can come to my territory as a guest when you have time." And why do you still call Brother Yu when you are engaged, and call your husband to listen. ”

Xia Tingyun was laughed at Fang Xiaoyu's words: "I hate it, who wants to call you husband, I haven't married you yet." Fang Xiaoyu said: "If you want to get married sooner or later, you should call it now." Xia Tingwei said on the side: "Okay, it's not enough to be separated, but I'm afraid we won't be able to see each other for several years." ”

Fang Xiaoyu was surprised: "What is it for?" Xia Tingwei said: "The two of us plan to study in the Western Continent, and we can help you when we come back to learn some useful things." ”

Fang Xiaoyu was very moved when he heard this, he hugged the two of them left and right and said, "Xie Lu, thank you, in fact, as long as you are by my side, you can already help me." Xia Tingwei's face turned red and said, "Don't be like this, someone is watching." Fang Xiaoyu smiled and glanced around and deliberately said loudly: "It is natural for a husband to hug his wife, whoever likes to watch it." ”

When the guards heard Fang Xiaoyu's words, they quickly turned around, pretending not to see it, Xia Tingwei embarrassedly hammered Fang Xiaoyu and stopped talking. Xia Tingyun said: "How can you flirt with your sister in front of me and ignore me." ”

Fang Xiaoyu said: "Who would be willing to ignore our little angel, wait a few years for me to marry you home, let's make love every day." Xia Tingyun said shyly: "you, I'm not rare." Xia Tingwei said: "It's not early, you should get on the road quickly." Fang Xiaoyu nodded and said, "You also take care, pay attention to your body, you are not allowed to lose weight next time I see you." ”

Xia Tingwei nodded with tears in her eyes and said, "I will take care of myself and my sister, and we will wait for you to marry us." Xia Tingyun also said: "We will be able to come back in four years at most, and I will definitely be your best assistant at that time." ”

Fang Xiaoyu nodded and said, "I believe it will, take care, I'm leaving." After walking a long way, Fang Xiaoyu could still see the two slender figures waving at him. Turning around, Fang Xiaoyu sighed, after all, it would be four years before they met again, and Fang Xiaoyu still missed them very much.

"You're very good at cheating girls." Elena, who had been by Fang Xiaoyu's side, teased. Fang Xiaoyu raised his head and said, "What?" Jealous? Elena took a sip: "You're jealous, and I have nothing to do with you." Fang Xiaoyu smiled: "Then you want to have something to do with me?" ”

Elena couldn't say anything about Fang Xiaoyu, she just snorted and turned her head to stop talking. Fang Xiaoyu's mood for teasing Elena was a little better, but Elena's heart was filled with a trace of sourness, after all, Fang Xiaoyu already had two fiancées, what if he followed him?

There was no need to hurry when he went back, Fang Xiaoyu and his party traveled all the way to the mountains and rivers, and it took a full month to return to Tongjiang Fucheng from the capital, Fang Xiaoyu, who was grinding his legs from the saddle, secretly vowed to study the car as soon as possible, at least to get the train to the capital.

Returning to his own territory, Fang Xiaoyu found that during his absence, the work of East China was quite selfless, and all the work of the Chinese Collar was carried out very smoothly, the economy developed rapidly, large areas of wasteland were reclaimed, various factories began to be established one after another, and scientific and technological progress was not small.

Although the internal combustion engine has not made much progress, mainly because there is no recoverable oil in Fang Xiaoyu's territory, and Fang Xiaoyu does not want others to pay attention to this new resource too early, so under Fang Xiaoyu's strong request, the development of the internal combustion engine stopped, and Benz temporarily shifted his research direction to the steam engine, especially the three-expansion steam engine proposed by Fang Xiaoyu and the small water-tube boiler designed by Einstein.

The internal combustion engine, which Fang Xiaoyu had high hopes for, was temporarily shelved, but Tesla brought Fang Xiaoyu good news, the generator and electric motor were finally developed. The excited Fang Xiaoyu immediately came to Tesla's laboratory, looking at the generator set that was simple but already had a modern prototype, Fang Xiaoyu was extremely excited.

Tesla looked at Fang Xiaoyu's excited expression with satisfaction and said: "With the generator, you can carry out the later research, I plan to start researching the machine that uses electricity, I don't know what young master Lu Dao has any ideas?" For Fang Xiaoyu's whimsical thinking, Tesla is still very convinced.

Fang Xiaoyu shook his head and said: "This is too much, for example, electric lights used for lighting, electric fans used to blow wind, radios that can listen to the radio, electric conveyor belts that can be used for factory production, and the most important thing is telegraph." ”

Fang Xiaoyu has endured the current low means of communication for a long time, in fact, as long as he makes voltaic batteries, he can make radios, but Fang Xiaoyu has never thought of it. The current speed of intelligence transmission is like Zhao Quan's, and a lot of intelligence investigation is not time-consuming, but the time it takes to transmit it on the road is several times more than the time of investigation, or even dozens of times. This is still within the Eastern Continent, if the information transmission time of the Western Continent is calculated in years, a lot of information transmitted to Fang Xiaoyu has already become invalid.

After listening to Fang Xiaoyu's gushing narration, Tesla's eyes lit up, and he couldn't wait to devote himself to research immediately. Fang Xiaoyu focused on telling Tesla about the principles of the signal amplifier and electron tube of the telegraph, which he knew, and Tesla decided to start studying it immediately.

However, with the current scientific and technological conditions, the research of telegraph is a little difficult, Fang Xiaoyu suggested that he first study some practical electrical appliances, such as electric lights, after all, Fang Xiaoyu is going to build some power plants in the next step, and there is no place to use electricity.

However, Tesla was already fascinated by the telegraph depicted by Fang Xiaoyu, and resolutely disagreed to study other practical electrical appliances first.

Although Einstein has not been exposed to Tesla's research, but he is very talented, and he is very good at studying various disciplines, plus Tesla's assistant assistance, the study of electrical appliances is relatively easy, Fang Xiaoyu told Einstein about his knowledge of electrical appliances, and the principles and structures of these simple electrical appliances are explained in detail in junior high school and high school physics classes, which can save Einstein a lot of effort.