What is electricity, what is magnetism, this, under the premise of no instrument, it is really not clear to explain, even if there is an instrument, can it be explained clearly, no, this electron walks in the wire, even if it walks, how can it make the light on, let the motor turn, and electrocute people?

However, this Tang Dynasty has a big heart, as long as you tell him to use it like this, he can use it, for example, the invention of the compass, that is, Sinan, who knows how to explain this, but people know that this can specify a fixed direction.

Therefore, no matter what Yang Qiao makes, as long as it is arranged with the craftsmen, they will make it, at most ask a why, that, I can't explain it to you yet.

"Oh, I see, then, I'm going to work."

It's as simple as that, it doesn't need to be explained.

Therefore, soon, the magnetoelectric instrument, Yang Qiao also quickly manufactured, frequency meter, no need, this, calculated according to the speed, originally, it is necessary to limit the speed, so, this frequency, on the contrary, is the easiest.

voltage, at this time, Yang Qiao didn't know that the voltage he used was 240 volts, so it was considered a standard voltage, this, draw a red line on the voltmeter, this is the standard voltage, high, it is said to be high, low, it is said to be low, and the bulb is also based on this standard voltage, at least, the word ah to ensure the brightness, how long can the bulb be lit without breaking, even if it is a standard configuration.

And the current, that's even simpler, is also to specify a standard current first, this current, is based on the current of the bulb as the standard, however, in the future, after the current is really detected, it will still change, temporary, Yang Qiao doesn't want to teach too advanced knowledge, that is, standard voltage, standard current, and then, after calculation, that is the standard resistance.

As for the number of standards, it depends on the situation, but there is still a place for standards.

When these devices were manufactured, Yang Qiao realized that what he was thinking about had not happened, that is, the black and thick machinery, and the machinery in front of him was actually very delicate.

This, I can't help but say that those craftsmen tried their best, for example, the silicon steel sheet, the magnetic permeability they made, was very high, so, under the premise of calorific value, this generator was repeatedly reduced, and there was a relatively small generator in front of me, and even an electric motor.

With a motor, you can make some industrial equipment, but at this time, Yang Qiao doesn't want to do this, it's okay to make some small things, but if you want to make big and complex equipment, it can't be your turn temporarily.

Yang Qiao will not forget, what is the original intention of making the generator, the original intention, naturally for railway communication, you know, this Datang Railway is getting longer and longer, this communication is becoming more and more important, some simple sound transmission, and even light means, can no longer keep up.

"Boy, do you really have the craftsman develop your communication system, as well as your signal system?"

"Well, what's this, do I do everything, when I don't have it, as a result, people won't know anything, it's better to trouble now, I'll give them a hint, it's better for them to study it themselves, perhaps, this Huaxia will become another Huaxia, what do you say?"

"Well, your idea is right, even if you change it like this, it will not be easy for someone to correct history!"

I felt a little coke at this point, and I actually worried about those who played chess, yes, this crossing, the system, if no one participated, it would be a joke, but Yang Qiao did this.

What's the matter, Yang Qiao is gone, you want to modify it, change everyone's memory, and even, you still need to modify every place, or, just reinstall the system!

Hehe, hehe.

"Alright, talker, what's the coke about this?"

In fact, it was not only the chatter who felt Coke, but Yang Qiao also felt Coke.

"Lang Jun?"

"Well, you are here, after a few days of observation, I found that you are very interested in this electricity, so well, I will give you a task, that is, to use this electricity, to create a convenient communication system on the railway, and a signal system, the specific requirements are like this......"

"Eh, Lang Jun, I'm sorry, I don't understand these things you said, I guess I can't do it."

Is this what the ancients looked like, don't let me say anything, you can all understand, although it can't be made immediately, it will take a long time to make it, and it will be done eventually, and at this time, Yang Qiao can be relieved, this ancient man is not so demonic.

"Well, this, I know, you can rest assured, you remember the task first, and in the next few days, I will take you to make a few gadgets, and you will understand what this task is."

"This, called a transformer, is to turn this relatively high voltage, that is, the standard voltage, into a low voltage, that is, a safe voltage that is not harmful to the human body, and you, as long as you remember the data of this transformer, and the data of this voltage is, the standard voltage, is dangerous, very harmful to people, and will electrocute people, and this is called a safe voltage, which is a voltage that is harmless to people."

Now, Yang Qiao can only give this craftsman a cramming education, that is to say, some principles, he will not understand, but this application, he must remember, and draw inferences.

"Lang Jun, what should be the value of this voltage?"

"Well, you raised this question, which proves that you have thought about it, but, now, this voltage, I haven't really set the standard number, so these values are temporary, especially this safe voltage, you must remember this ratio, and when this principle is really understood, after it matures, we will formulate a real standard, understand?"

"Okay, Lang Jun, I understand."

"So, okay, next, let's make such a gadget, this is the drawing, you make it according to the drawing, and then, I'll explain it to you."

"Boy, what kind of attitude do you have, why do you let the craftsmen do everything?"

I don't understand it.

"This, is to take apprentices, and, in fact, these things, let me do, I can also make them, but, what they do a day, I may not be able to make it in ten days, this is a skilled worker's work, so, I, as long as I know it, can not do everything by myself, you say, this steam engine, if I make it myself, at least, it will take more than a year to make it, even if it is made, it may not be able to use, it can be used, and it may not be able to be used, so, This cooperation and division of labor is still needed, you understand. ”

"Oh, it seems, I understand something again, this human mind is really complicated."

"That's, it's not something you can understand, you know, if you are given a body, these things, I don't need a craftsman to do them, you can do them."

"Well, that's right, and besides, I'm more standard than them, but there are also things I can't do, such as those jewelry, I can only follow the drawings, not like them, thinking about how to do it, I can do it."

"It's called art, you know, so if you want to really have a human mind, you need to learn a lot of things!"

"Let me tell you, this is called the electric bell, when the power is on, remember, it is alternating current, not direct current, direct current, it is not that it does not ring, but it rings when the power is on, and it rings when the power is off, you remember this first."

When this craftsman was busy, Yang Qiao was not idle, but sometimes guided on the side, sometimes explained some knowledge, naturally, this, on the premise that he should not be a craftsman's work, for example, when he was winding the coil, he needed to count, at this time, Yang Qiao would not affect him, and when doing some shells or something, he didn't need to use his heart and brain, Yang Qiao could explain on the side.

"You understand, this is the electric bell, as long as the power is on, it will ring, and you need to think about how to convey this signal, so that the other party can understand, and how to control it remotely, this is the sound signal, and the light signal, this, you can let those craftsmen who make light bulbs make a batch of light bulbs that are suitable for this safe voltage."

"Okay, Lang Jun, I understand, next, you can look at me."

"Well, for now, let's use this bell and light signal first, and then, I'll arrange a few more people for you to study the system with you and see how to achieve the best results."