Into Unscientific

little known.

In ancient China, the purification of salt has always been a hassle.

In the most primitive tribal era, humans even obtained salt by drinking blood from their hair.

After entering the history of civilization.

The ancestors found the salt well, and just obtained the processing method of coarse salt.

In the Tang and Song Dynasties, refined salt refined from sea salt gradually appeared, and the price was high.

The highest price even reached one catty, or sixteen taels and ninety cents.

But the word "refined salt" here is actually a concept compared with the earlier coarse salt.

Compared with the standard table salt of later generations, the refined salt at this time still contained a lot of impurities.

Such as sulfate ions, magnesium ions, calcium ions, etc.

Especially magnesium ions.

After this thing enters the human body, it will cause diarrhea, cardiac dysfunction and other abnormalities.

For Wang Yue at this time, it was a deadly substance, and injection was basically equal to murder.

In order to protect Wang Yue's life, Xu Yun could only deal with it with refined salt for the time being.

After all, efficiency comes first.

Moreover, the purpose of adding salt is only to dehydrate the ethanol and increase the alcohol concentration, and there will not be too much residue entering the human body.

But right now, saline injection is going to be done, and it is foreseeable that this will be an extremely long-term treatment.

So in this way, this part of the impurities seems to be a bit of an eyesore.

Therefore, the purification of sodium chloride has become a necessary and urgent link.

Indeed.

There are many ways to purify sodium chloride.

For example, shells, coconut shells, and any kind of acidic fruit will work.

But don't forget.

Xu Yun came to this era with a mission to complete.

The stronger the ability he displayed at this time, the easier it is to gain Lao Su's trust.

Coupled with the factors of the background of the times, he also needs a certain status to do something-whether he can succeed in the end is one thing, and whether he has the right to speak is another.

Therefore, after careful consideration, he chose to rub a generator by hand and use electrolysis to prepare sodium chloride.

After making up my mind.

Xu Yun pondered for a moment, then said to Old Su:

"My lord, an IV requires a thing called saline, which is made in another way.

So can you bother the master to prepare some things for the villain? "

"What do you need?"

"...these things may be a bit expensive."

When Old Su heard this, he flicked his sleeves proudly:

"Your life is the most important thing. The old man's family is rich, so you just say it's okay."

Only then did Xu Yun nod his head, and turned over the paper of the previous ghost drawing talisman.

The required supplies are written on it:

"A piece of natural magnet is best shaped like this.

Then process the refined copper into a thin wire shape, the longer the better. Add two copper blocks and a few copper sheets.

In addition, a half-meter iron shaft, wooden mold, tung oil, turntable, graphite, witherite, and utensils for water supply in Fuchu are also needed.

Then send someone to the sour plum shop in the east of the city to ask the shopkeeper if they have some white things that can make ice, and if so, buy some back

By the way, the donkey pulling the mill is also ready. "

After describing the requirements, Xu Yun handed the paper to Old Su.

This time he is going to build a standard disc generator, the principle is Faraday's electromagnetic induction phenomenon.

That is magnetism.

Among them, the iron shaft is made into the rotor core, the copper wire dipped in tung oil is wound on it as the winding, and the magnet is used as the stator.

It belongs to the operation that can be done with hands.

What?

Are you asking about voltage?

U=kB∠nV, the voltage is equal to the coefficient multiplied by the magnetic strength multiplied by the effective length of the rotor multiplied by the number of coil turns multiplied by the constant speed difference, which can be calculated in advance.

At the same time, the accuracy of the required copper wire is only five millimeters, which can be easily achieved even by ancient industrial standards.

Looking at the whole link, the biggest problem is not technology and craftsmanship, but production cost.

According to Xu Yun's design.

The guaranteed cost of the entire generator is more than 200 copper coins, which is two hundred taels of silver, and it may rise at any time.

Converted according to the concept mentioned earlier, it is almost equal to 200,000 in later generations.

In the absence of voltage stabilizers and distributors, this kind of generator could do very limited things in ancient times.

To put it bluntly, this thing is basically the same as burning money.

So if you travel to an ordinary person's house, you may have to be hanged up by your parents and beat you up before you can make a generator.

But right now, in order to save Wang Yue, Old Su obviously wouldn't care too much about it.

After getting Xu Yun's blueprint, he immediately recruited Mr. Xie to take care of it.

Let the big housekeeper add night shift.

Xu Yun rubbed his sore neck, bid farewell to Old Su, and went back to his hut to sleep.

A lot of things happened today, both in terms of energy and physical strength.

In addition, there is no Tifa in this era, so naturally I can only sleep obediently.

Nothing to say all night.

Early the next morning.

Suddenly, there was a faint voice in Xu Yun's ears:

"My lord, my lord, it's time to get up in the morning."

Xu Yun yawned and rubbed his sleepy eyes.

After recovering, I suddenly felt something was wrong:

In the past few days, although some people told him to wake up in the morning, most of them were rude.

Either hammering the door or shouting, how can it be as gentle as today?

Then he put on his clothes and opened the door.

Only at this moment.

Yong Zhu was standing outside the door with a somewhat restrained smile, holding water in both hands, he did not see the casualness of saying 'Wang Mazi' yesterday:

"My lord, you are awake, please use the water."

Xu Yun gave him a strange look, and asked:

"Brother Yong Zhu, what are you?"

"Don't, don't, don't, you're making a fool of yourself, just call me Zhuzi."

Hearing the three words Brother Yongzhu, Yongzhu was shocked immediately, and said quickly:

"My lord, you don't know anything.

The master issued an order yesterday to remove you from slavery and put you in the register of the servants of the mansion.

Right now, you are considered a doorman, and you are different from our servants. You can call me anytime you need anything. "

"Door?"

Xu Yun was taken aback when he heard the words, only then did he understand.

Keepers.

Also known as diners, it is a unique group in ancient times.

Most of them are rangers or counselors, without official positions, and some are even fugitives.

On weekdays, the lord provides the necessities of life, and will also contribute to the lord when necessary.

At the beginning, Lord Mengchang claimed to have three thousand diners, and there were also a large number of diners staying on Chai Jin's manor in "Water Margin".

In terms of nature, the doormen belong to the "guest", which is much higher than the "servant".

For example, Zheng Kuan, the leader of the nursing home, one of the four giants in Lao Su's mansion, is a kind of 'Bin'.

Therefore, the salary and status are much higher than those of the most senior "Yi" servants.

It's just that they are inferior to Xie Laoduguan, Yue Lian and others in terms of intimacy with the master's family, so each has its own advantages and disadvantages.

If Xu Yun remembered correctly.

Before Lao Su became an official, he also recruited and raised dozens of diners. According to the records, some of the steps of the water transportation observatory were completed by the diners.

But now that Lao Su has retired for the elderly, the number of diners staying in the house is estimated to be not many.

The empty east wing can also prove this point - there is a guest room, and theoretically all the guests should be placed in that position.

Therefore, in addition to the necessary position of the nursing home, there may be one or two retainers who have not been dismissed in terms of accounting.

In short, there is a high probability that the number will not exceed three.

Really rare existence.

be honest.

Whether it is a guest or a servant.

Xu Yun, who was born in a later generation, actually doesn't have high requirements for his status, and naturally he doesn't order others around.

I saw that he let Yongzhu carry water into the house first, took the towel and washed his face, and then said to Yongzhu:

"Brother Yong Zhu, don't worry, Brother Yong Zhu, listen to me first.

You were the one who rescued me from the well with the rope back then, so let's not be abusive, there's no need to be too extravagant.

How about this, if you think highly of me, I'll still call you Brother Yong Zhu.

As for me, you can call me Brother Wang, just like Brother San, what do you think? "

The "brother" in the Song Dynasty did not refer to the elder brother, it was a kind of address that favored the market but was somewhat intimate.

Still take "Water Margin" as an example:

In the episode where Wu Song angrily kills Pan Jinlian, the little boy who sells pears in Yanggu County is called Brother Yun, and he can be regarded as a small character with some roles.

Seeing that Xu Yun's rhetoric did not look like a lie, and at the same time, the reply at the sour plum shop yesterday also made Yongzhu feel that he and Xu Yun had somewhat of a friendship.

So he hesitated for a moment, and finally said tentatively:

"Then I'll call you Brother Wang from now on?"

Xu Yun smiled heartily:

"become!"

After washing up, he went to the breakfast shed for a simple breakfast.

Then he went to the East Wing and saw Lao Su, Wang Zhi and Wang Yue.

as expected.

After another round of wrangling, he finally persuaded Lao Su and Wang Tin to change his title from 'Prince Wang' to 'Xiao Wang'.

As for Xu Yun's title to Lao Su is still "Master", after all, disciples can be regarded as subordinates.

Then Lao Su told Xu Yun,

In the middle of the night last night, he saw that Wang Yue had a low-grade fever, and Xu Yun mentioned that allicin was difficult to store, so he used the remaining allicin to give Wang Yue a medicine.

While stabilizing the condition, it also means that the first batch of allicin has run out.

Therefore, Xu Yun's goal today is very clear:

Completed the mass production preparation of the second batch of allicin and allicin injection!

Afterwards, Old Su brought Xu Yun to another courtyard in the East Wing. There was a pile of supplies Xu Yun needed on the open space in the courtyard.

Um.

And that donkey.

After entering the courtyard.

Old Su pointed to these objects and introduced aloud:

"Xiao Wang, these are natural magnets, iron shafts, and wooden models.

The copper wires were made overnight by the craftsmen of the Tool Making Bureau, you can see if they are suitable.

Also as you said.

There are indeed some white crystals that can be used to make ice in the sour plum soup shop, and I bought some back in the first year.

Oh, by the way, the water delivery device you mentioned is also ready, the pile on the left is. "

Xu Yun nodded slightly, and first went outside the copper wire to check the accuracy specifications.

In ancient times, there was no insulating paint, and absolute wire insulation could not be achieved.

But under special circumstances, both parchment paper and tung oil can achieve the substitute effect.

When Faraday first experimented, he also used parchment paper.

The theoretical upper limit of the self-made generator copper wire is five millimeters, which is also the width of half a fingernail. As a limit, the thinner the better.

The size of the coil of copper wire prepared by Lao Su is about two millimeters. According to what he said earlier, this is the result of the overnight forging by the craftsmen of the Tool Making Bureau.

That is.

In this era, leaving aside the fine craftsmanship that takes a lot of time.

The processing accuracy of official industrial rapid mass production is about two millimeters.

Xu Yun secretly kept this information in his heart, then turned around and walked to the disassembled self-priming pump.

really.

As he had expected before,

Although this self-priming pump is not as fine as later generations, it can still clearly see the operating principle of the self-priming pump, and

Balance spring and mainspring.

Xu Yun bent down and weighed the main joint of the self-priming pump in his hand.

About fifteen or six catties.

Then he turned his head, held the self-priming pump and asked Old Su:

"Master, I don't know what this thing is?"

Old Su stroked his beard when he heard the words, a trace of pride appeared on his face, after all, this was his proud work:

"The name of this object is Sui Chung, and it was a small object that the old man accidentally discovered when he was ordered to build a water transport observatory.

Just by accumulating power through wheel knots, water can be sent tens of feet away, which is equivalent to the work of several servants going back and forth many times. "

Xu Yun was silent for a moment, then bowed his hands to Old Su:

"His skills are close to gods."

His words did not imply any flattery, but a sincere admiration.

Although the principle of balance spring and self-priming pump is very simple in the eyes of later generations.

But in this era—or until the 17th century, this is a barrier to human cognition. (Note: This is not my obscenity. The Tianheng system created by Lao Su is the prototype of the mechanical watch of later generations. This is a recognized achievement at home and abroad in later generations. If there is a mechanical watch, there must be a balance spring. This achievement is attributed to Hooke The main reason is that the time is too long, and there is no physical evidence.)

Perhaps this is the wisdom of the Chinese ancestors.

After sighing, Xu Yun put his mind back to reality.

He first checked all the equipment one after another, and then officially began to assemble the generator.

well known.

A DC generator is mainly composed of a stator and a rotor.

Among them, the main components of the stator are the machine base, the main magnetic pole, the commutation pole, the end cover and the brush and other devices.

The main function is to generate a magnetic field.

The main components of the rotor are armature core, armature winding, commutator, shaft, bearing, fan, etc.

The main function is to generate induced electromotive force and electromagnetic torque, which is the core of DC motor energy conversion.

certainly.

If it's time travel, just make a simple device, it doesn't need to be so complicated.

The actual components include stator main poles, armature core, armature winding, commutator and rotating shaft are basically enough.

The basic principle of DC generator is Faraday's law of electromagnetic induction:

That is, if the conductor cuts the magnetic force line, an induced electromotive force will be generated in the conductor.

The teachers in the high school physics class should have demonstrated it, so I won’t repeat it here.

Normally.

This kind of ancient generator needs to be cranked to generate electricity by hand, a bit like the posture of using a pencil sharpener in elementary school, and the faster the better.

But don't forget.

Right now, Xu Yun has the good thing of a clockwork:

You only need to let the donkey first charge the mainspring, and then use a very simple torque to convert, the elastic potential energy of the mainspring can be converted into kinetic energy, and the motor can be operated.

As for whether the donkey was tired or not, that was not something Xu Yun considered.

Then Xu Yun wound the copper wire on the copper sheet, and pressed the turntable below to fix the magnet on another shelf.

Then the coil frame is placed in the middle of the magnet, the wires are connected end to end to form a closed loop, and the graphite acts as a carbon brush for conduction.

that's all.

A simple generator will do the trick.

Yes, it's that simple,

In fact, there are a lot of seemingly high-level knowledge in later generations. It is not difficult to restore in ancient times. There are two main difficulties:

One is its derivative application and storage. The difficulty of electrical appliances is much more difficult than that of simple generators.

The second is the process of understanding the concept.

Like generating electricity.

Not to mention Xu Yun's disc engine, when it is really extreme, you can generate electricity with two fruits.

Isn't that what Ubisoft's servers are like.

The ancients could not use electricity, not because their industrial level was not enough, but to a large extent because of their unfamiliarity with the microscopic field:

They don't know the concept of electricity at all.

For example, Lao Su at the moment.

During Xu Yun's assembly process, he was almost silent the whole time, because he couldn't understand what Xu Yun was doing.

Xu Yun didn't bother to explain. Some concepts are far easier to explain after seeing the phenomenon than teaching concepts.

After tinkering with the generator, Xu Yun was not in a hurry to start it.

Because he has another thing to do:

Prepare for electrolysis.