Infrastructure masters in the red building

This is a long story, but it starts with the crime of "greedy" and "hyperactive" Gui Xiaxue eating metal pieces used in experiments indiscriminately.

Recently, the technology of metal purification in Xiaoyuan Industrial Park has become more and more sophisticated, and metals such as iron, aluminum, copper, zinc, and tin can be purified one after another.The School of Science of Xiaoxiang Academy bought a lot of high-purity metals from Xiaoyuan for experimental needs. After purchasing, they were all placed in Gui Xiaxue's office.

Who knew that Gui Xiaxue, a guy who could never satisfy his curiosity, had a whim one day: If you put all these metals in your mouth, would you be able to taste the difference in taste?

The guy also knew it was dangerous to swallow heavy metals, but he said: "I'll just taste it.

So Gui Xia learned how to put these metal pieces into his mouth one by one to taste.Originally, he followed the order, smash it and finish this kind, and then try that kind.

It so happened that once he "tasted" a little faster, and ended up putting a piece of lead and a piece of silver into his mouth at the same time.

Taste! ——Gui Xia came to a conclusion immediately.

Shui Xian sat opposite Jia Fang, showing a look of wanting to try the same.

Jia Fang told him with a smile: "This is not actually a taste, what Gui Xiaxue tasted was 'electricity'."

Shui Xian was surprised: "Is it electricity? The kind that flashes during thunderstorms in summer—electricity?"

"Yes!" Jia Fang nodded to confirm. The "greedy cat" Gui Xiaxue accidentally discovered that it is a kind of direct current.At that moment, Gui Xiaxue's mouth actually formed a small battery structure.

This may sound scary, but it is actually the case—the crunchy taste that Gui Yaxue felt was actually the direct current generated by the metallic lead and metallic silver in his mouth.

The more Jia Fang thought about it, the more complacent he became: Why are his people so lucky?

Since the moment Gui Xiaxue put the two metal pieces into his mouth, this space-time is no longer just the electricity from lightning strikes in the sky, and the crackling electricity generated when rubbing fur... This space-time has appeared to be controllable and directional. electricity.

He told Shui Xian the reasons for his pride.

Unexpectedly, Shui Xian raised his head, looked at the ceiling for a while, and said: "There is a crispy and numbing taste in my mouth... I have also tasted it, and it is not necessary to put metal pieces in my mouth."

Jia Fang: ...

His face suddenly turned red like steamed prawns from Qingfang Lake, he lowered his head, and couldn't help covering his mouth with a handkerchief embarrassingly.

Who made the relationship between him and Shui Xian more and more stable, and there are more opportunities to be together, so naturally there will be some moments of intimacy and solitude.

Gui Xiaxue turned himself into a direct current dry battery, but the taste and numbness mentioned by Shui Xian were experienced by both Shui Xian and Jia Fang at the same time.

Jia Fang: No wonder people in the world describe this as "electric shock". The moment when the heart beats, the second when the four lips meet, it is indeed the feeling of "electric shock".

It's just that Shui Xian can say it as if nothing had happened, but Jia Fang can only be a shrimp, and even wished that he was a sweet potato with a nest in the ground, waiting for him to hide in it, and then being caught by others when his face stopped blushing. dig it out.

This guy, after revealing his true nature, became more and more shameless, shameless and shameless.

"Actually, you know all of this, but you didn't do it yourself, but chose to let people try and discover by themselves, right?" Shui Xian avoided the embarrassing topic, and continued to ask from another angle Jia Fang.

Jia Fang nodded and admitted: "Yes, I know. But I only know the general idea, not the details."

Life has a limit, but knowledge has no limit.Jia Fang has received a modern basic education, but he is not proficient in every professional field, and he does not have the energy.

"So I hope that people in this era have the ability to think independently, discover and speculate. My guidance can certainly help them get twice the result with half the effort, but they still have to rely on themselves to move the world forward."

That's why he wanted to build Xiaoxiang Academy, to let ordinary people receive education, and at the same time let them learn to analyze and question.Even if Jia Fang leaves one day, the people who stay in this time and space can still support each other and bravely climb to the height of the technology tree.

After Jia Fang finished speaking, he felt a little bit regretful, for fear that what he said had touched Shui Xian's sore spot, and he had already said it as if he was about to run away.

But Shui Xian thought for a while, then nodded and said: "You are right."

"However, I saw that you were very confident when you mentioned 'dam power generation' earlier. Didn't Gui Xiaxue discover more than the abnormality felt in his mouth?"

Jia Fang nodded: "Indeed, it's more than that. What I just said was just one of Gui Xiaxue's first discoveries... It was you who interrupted!"

As for other discoveries, Jia Fang planned to take Shui Xian to the School of Science the next day to see for himself.

So this night was another beautiful night for various "experiments".

The next day, Gui Xia triumphantly entertained Jia Fang and Shui Xian in the laboratory of the Faculty of Science.

He first showed the "DC battery" he had trial-produced through repeated experiments—a copper rod, immersed in salt water, with a shell made of metal zinc on the outside.

When Shui Xian saw this battery, he naturally found it amazing, but he had no idea what it could be used for.

Jia Fang just wanted to explain: There are many uses.Gui Xiaxue stopped Jia Fang, and took out a galvanometer with a pointer, and pointed to Shui Xian seriously: "If I connect the positive and negative poles, a current will flow, and you can help me see if the pointer will flow. will move."

This Gui Xiaxue has always called Jia Fang indiscriminately, I am yours; now it is the same with Shui Xian, so Shui Xian can rest assured, knowing that Gui Xiaxue treats everyone the same, and treats Jia Fang the same. There is no special treatment.

Over there, Gui Xiaxue took out two copper pointers wrapped in rubber, and connected the two pointers to the positive and negative poles of the battery respectively.

Shui Xian opened his mouth slightly, but finally he didn't exclaim out loud.On the "galvanometer" in front of him, the pointer turned to the maximum value with a "ding".

This is another case where an object moves by itself without any human drive.When Shuixian saw the steam engine before, he thought it was miraculous. Ordinary water has been burned by the common people for thousands of years, but now it can push the "big guy" forward.

But now, Gui Xiaxue just put an ordinary metal cylinder, but he can make this strange-shaped "galvanometer" automatic without wind-this is another miraculous thing.

Shuixian can already foresee how much change this "battery" can bring to the world in the future.

Unexpectedly, it was not over yet, Gui Xiaxue held two pointers and waited for about half a stick of incense before releasing the pointers from the "poles" of the battery.He carefully touched a piece of thick copper wire connected to the pointer, and said, "Look, this is getting hot."

Shui Xian stretched out his hand to try it, and sure enough, he saw that the copper wire was already hot to the touch, completely different from the cold metal material just now.

Jia Fang already frowned and said: "Safety regulations, Teacher Gui, pay attention to laboratory safety!"

Gui Xiaxue suddenly realized that he had violated the safety regulations of the laboratory of the Faculty of Science by allowing Shui Xian to touch the copper wire with his bare hands. He scratched his head and quickly apologized to Shui Xian.Shui Xian also felt that nothing happened, and felt that Jia Fang was a little overwhelmed.

So Jia Fang could only repeat the various rules and regulations related to electricity safety.Anyway, when he designed large buildings in modern times, he had to consider the safety of electricity use. He also personally did the science popularization and safety reminders for customers. Now he just regards Shuixian and Gui Xiaxue as "Party A" with big hearts and free spirits. Come educate.

Shui Xian and Gui Xiaxue rarely stood on the same front, looked at each other, and quickly reached a tacit understanding - both of them shut up and let Jia Fang speak freely, and put on a good attitude, so that Jia Fang gradually comfortable.

Sure enough, although Jia Fang exhausted his words, he gradually calmed down when he saw that the two were very receptive.

He finally asked Gui Xiaxue again: "Teacher Gui, as for what I mentioned to you, have you experimented with cutting the magnetic field lines with a copper coil to generate electric current?"

The phenomenon of converting chemical energy into electrical energy has been accidentally discovered by Gui Xiaxue.Jia Fang is very concerned about whether the conversion of kinetic energy (potential energy) into electrical energy can be done in Gui Xiaxue's laboratory.

If this road can be passed through, then he can build the dam with confidence and boldly, and then he can order the rotor blade assembly of the generator from Shuixian's factory.

Gui Xiaxue smiled at Jia Fang, showing his white teeth, and instead of telling the result directly, he urged Shui Xian and Jia Fang: "My lord, go and help me carry the coil tied to the frame; Mr. Jia, go and help me bring the shelf with the magnet..."

One advantage of Shuixian's small garden is that its iron ore is an associated mine of magnet.Even Taoyuan Village now has quite rich magnetite resources.

After Gui Xiaxue demonstrates it again, the pointer of the galvanometer can be turned by turning the coil around the magnet.Gui Xia was elated, but Shui Xian was shocked again—is this electricity?

Although not everyone believes that the thunder and lightning in the sky is caused by a mother of lightning who can strike lightning into the mortal world by holding a mirror, they just watched Gui Xiaxue in his laboratory, soaking a jar of salt water, or Just shake the handle and turn a group of coils, and you can artificially create "electricity" just like the electric mother.

This is too unbelievable, unbelievable.

In addition, is this small energy that gently moves the pointer really "electricity"?

Gui Xiaxue and Shui Xian, who were in the laboratory at the moment, looked at each other, but neither of them had any doubts.Of the two of them, one was guided by Jia Fang and embarked on the road of scientific research; the other was Jia Fang's intimate partner, who knew his past and origins that were not humane.

That's simple - both of them chose to trust Jia Fang without hesitation.

Although they don't know at all now, what this coil and magnet, this pool of salt water surrounded by copper and zinc can bring to this world.

Jia Fang looked at the experimental instruments on Gui Xiaxue's desk and smirked.

is not that right? ——Isn't he just taking the whole time and space and striding towards the electric age?

Thinking of the various processes he will be able to further achieve after possessing direct current and alternating current in the future: electrolysis, electroplating, metal smelting, induction heating... All kinds of industrial products that can only be produced in modern industrial society finally have the opportunity to appear in this time and space.

The ability to process metals will be further strengthened, which means that the secret plan that Jia Fang used to protect himself and deter others has now cleared the last obstacle and is in sight.

The electric light will take over the baton of traditional lighting and drive away the darkness.The work, life and entertainment of ordinary people will extend to the night on a large scale, new entertainment methods will appear, the impact of activities will be shown on the screen, music and singing can be saved on tape and played on appropriate occasions.

Communication will be greatly improved, telegraph, telephone, radio... People are no longer "without colorful phoenix and double wings". Greeting each other every day, saying good night tenderly to each other...

In front of Jia Fang's eyes, he could clearly see the coming of change—the moment Gui Yaxue put the lead and silver pieces into his mouth to "taste", all of this was already on the way, and no one else could stop it.

——Ah, the electric age.

Jia Fang shook his head gently to make sure he wasn't dreaming.Although he was mentally prepared, he didn't expect this moment to come so quickly.

A new era is coming. As a soul from a different time and space, Jia Fang has no hesitation. He only hopes that the society here in this time and space will move forward as soon as possible.

He thought that the way of life in Taoyuanzhai might not change much: because this is a small society with relatively equal rights, people are the same, and there are no differences in class and status.

Because of the use of biogas, the people in Taoyuanzhai have long been accustomed to lighting at night. They no longer work and rest after sunrise, but spend part of the night for study, daily work and entertainment.

However, compared to when he first came a few years ago, Taoyuanzhai is no longer an ordinary small agricultural society. There are still farmers, small handicraftsmen, and small factories that have just begun to industrialize...all of these are flying In just two or three years, the villagers here have found their own position and used this as a starting point.

So fast!

I believe that all these changes will soon affect Xiaoyuan, Wuyuan County, Yong'an Prefecture, ten southern states... and even all parts of the country.

The changes that Xiang Fengyi didn't wait for and didn't see back then have already happened in this land and are irreversible.

Thinking of the point of "irreversibility", Jia Fang suddenly panicked again.

The wheel of the times is rolling forward, what it brings to everyone, every family, but it cannot be guaranteed to be absolutely beautiful...

Jia Fang was immersed in his own thoughts, and all kinds of expressions appeared on his face for a while, joys and sorrows, I am afraid he had everything.

"Zi Fang!" Someone put a hand on his shoulder and whispered his name, that hand was gentle but powerful.

Jia Fang woke up, and immediately saw Shui Xian and Gui Xiaxue looking at him with concern.

Shui Xian's eyes were firm, as if he wanted to send power from his hands to Jia Xin's heart.

Gui Yaxue still had a smile on his face, but he could not restrain his concern and trust.

Jia Fang quickly raised the corners of his lips and smiled, expressing that everything is fine, and at the same time he was extremely grateful, thanking his lover and friends in front of him, thanking them for their willingness to believe in him unconditionally.

Although the "future" in his mind, in the eyes of the world, is just "delusion".

On the border between Yongning Prefecture and Nanzhong Prefecture, a 25-year-old shopkeeper was poking his head next to a barracks.

Among the ten states in the south, Nanzhong Prefecture is the state with the longest border with Nanyi. The most important three passes and two villages on the border, two passes and one village are located within the jurisdiction of Nanzhong Prefecture.

Most of the garrisons in Pingnan Camp are in Yongning Prefecture and Yongan Prefecture.The people stationed here are soldiers under King Nan'an who went to the southwest to suppress the rebellion a few years ago.

Most of the people in South Zhongzhou depend on the barracks for a living.The men hunted in the mountains and sent their prey to the barracks to exchange for some money and food, while the women earned a little money by sewing, mending, washing and cleaning for the soldiers.

This barracks is no better than the Pingnan Camp - I heard that the soldiers of the Pingnan Camp are now farming their own fields, but the soldiers of the King of Nan'an are very rich, and food and equipment are continuously transported from the north.The soldiers in the battalion are also generous.

Probably because of this, many shopkeepers are willing to come to Nanzhong Prefecture to trade.

A group of women who lived nearby came in groups, and when they saw the shopkeeper, they waved: "Then, are you from Yong'an Prefecture? Come here quickly."

The shopkeeper quickly put a smile on his face and greeted him.

"Do you have any sewing needles?" Seeing that the peddler was very well-groomed, the women immediately asked, "I heard it's cheaper there, so give me ten fen."

The shopkeeper let out an "ah", and immediately took out a small paper bag from his bag, handed it out whole, and said at the same time, "Here, a ten-cent sewing needle."

The woman who handed over the money took a look at the paper bag and was shocked.She gave ten coins, hoping to buy two or three pieces, and someone handed over a whole bag, which was densely packed, and she didn't know how many pieces.

Pick up another one, and you can see that the needle is shiny, and the hole on the nose of the needle is also well-proportioned.The woman was worried, so she scratched and scratched the needle on her clothes again. Seeing that the needle did not bend continuously, she saw that it was a good needle.

"Don't worry! This is also bought from other places in Yong'an Prefecture. It is said that it uses new technology and is made by machinery in batches, so it is so cheap..."

The young shopkeeper lowered his voice, showing an expression of "I won't tell the others".

The women were suddenly excited: as soon as the ten Wen coins were taken out, they might have needles for the next three years.

"What else, cheap and good things, quickly bring them out and let us have a look..."

The peddler immediately unloaded his mule, which was tired for a long time, and counted it while taking it: "This is woven fine cotton cloth. I asked, and the price is about half of the local price..."

"This is spice, this one is Chaotian pepper, this one is millet spicy... This one is called monosodium glutamate, as long as you add a little bit to the dish, even ordinary dishes will immediately become ten times fresher."

"Do you want a mosquito-repellent incense for mosquitoes? What about the mosquito nets hanging in the house? Do you want the gauze on the doors and windows?"

The women gathered around the peddler, eager to take out everything and rub it carefully, everything felt good.

Unexpectedly, at this time, a majestic voice yelled: "Wu that shopkeeper, how dare you come to the side of the camp to spy."

The women rushed away and ran away, leaving only ten Wen in the hands of the shopkeeper.

"Come here, take him down, and serve him in military law."

It was too late, but soon, a group of soldiers rushed forward and captured the shopkeeper in an instant. He was searched all over his body, even his hair was removed and looked at.

"Sir, there is nothing on this man." A soldier reported.

"There is nothing to prove that he is not a spy. Push him out of the gate and kill him!" the officer ordered decisively.

The salesman originally wanted to argue for himself, but when he heard the sound of "chopped", his feet went limp and he couldn't even stand up.He was dragged out of the gate and supported to kneel on the ground.Xueliang's knife was raised immediately.

"Keeping someone under the knife—"

When the sound sounded, the knife had already fallen.When the word "person" was yelled, the blade finally deflected, and landed on the sand in front of the shopkeeper with a "teng".

The salesman was forced to save his life in this flash of lightning, and he was out of his wits for a while, then he opened his mouth and started howling. After crying for a long time, someone finally bothered him and scolded: "What's the funeral, the superiors will leave you alone!" My life is to see that you are still useful. If you cry again, you will be cut off."

Only then did the shopkeeper stop howling, but shook like chaff.Seeing his appearance, others knew that he must have been too scared just now.

The soldier guarding the peddler let him tremble for a long while before he slipped away and entered the barracks to meet the "sir".

This officer did not look like a general, but a scribe.When the scholar met the peddler, he questioned him in detail for a while, and found out that he was a peddler from Yong'an Prefecture. Because of the interest rate difference between the two states, when he came to Nanzhong Prefecture to sell goods, he immediately stood up with a smile and untied the peddler. Bind, invite him to take a seat.

"Look at what they do... they almost killed you as a spy." The scribe had a warm smile on his face.

The shopkeeper was overwhelmed with gratitude: "My lord saved the villain's life, the villain is very grateful, villain... the villain is willing to die for the adults." As he spoke, the young shopkeeper was in a hurry and knelt down in front of the scribe.

"What do I want you to die for?" The scribe seemed to have heard the extremely funny words, "Come on, sit down first. I have never been to Yong'an Prefecture, and I heard that the business is prosperous there, can you tell me something about it? "

The salesman was dumbfounded, and when he saw that the scribe really wanted to know the situation in Yong'an Prefecture, he gradually told him everything he knew.

Scribes would interrupt him occasionally to ask questions.Some of the shopkeepers knew, some didn't know very well, and they all told the truth right now.

At the end of the speech, the scribe got up and walked around a few steps with his hands behind his back, as if he couldn't make a decision.Seeing that he frowned slightly, he seemed to have some unexplainable troubles.

The salesman asked stupidly: "My lord, little man... can I help you with anything?"

The scribe seemed to have finally remembered him. He raised his head immediately, looked at him for a while, and then asked, "You are a peddler, and no one pays attention when you go to and from various states and counties. I need to inquire about some matters in Yong'an Prefecture. I don't know if you are willing." Be the eyes and ears of the official."

The salesman was completely dumbfounded: "Villain...the villain is stupid, how can adults trust the villain?"

The scribe smiled gently, and said: "It's people like you who won't be noticed if you inquire about the news. How about it, if you run for me, the profit you get may be worth the profit of seven or eight trips for you to deliver the goods. Even if it is For the sake of money, you shouldn't reject my sincerity, right?"

The author has something to say: a brief explanation:

Like Xiaogui, the original shape of putting a metal piece in his mouth to feel the current is the Italian scholar Zuerze.The first battery made by Xiaogui is actually a variant of the voltaic battery.

The second experiment of cutting the lines of magnetic force is the original experiment done by Faraday when he discovered the electromagnetic induction.