"Students, today, let's conduct an electrical experiment, what are we going to do before doing the electrical experiment?"

Because it is some dangerous experiments, there are a lot fewer students who come to do experiments, instead of those babies in the enlightenment class, several classes get together to do experiments, and there is a place to visit this laboratory, no, Yang Qiao took Niu Baobao and others, and sat on the side of the visit to watch this experimental teaching.

"Brother-in-law, this experimental building should be a middle school, why did the students of this elementary school also come to do experiments."

"This laboratory building, originally, was built for primary schools and middle schools, otherwise, why is it such a big building, here, there are dangerous tests, there are also safety tests, that is, there are no naïve tests, naïve experiments, left in the enlightenment school, and the laboratory of the primary school."

That is to say, in fact, the place of this experiment, in the school, temporary, is built two, one, is the enlightenment class and the primary school, mainly to manual classes or something, for example, the students in the previous enlightenment class make flowers, and then, there are some other manual classes or something, this is all an experimental class, nature, and there are some plant planting observation experiments,

After all, no matter how old or young, the grade is high, the naïve, will go to the naïve laboratory, uh, middle school, there will be no naïve experiments, there are, so, this middle school, will also go.

"Teacher, we need insulated floors, insulated gloves, and isolated power supplies!"

When Yang Qiao was talking to Niu Baobao, those students had already begun to take action, went to the material room on the side, and applied for experimental materials with the material teacher.

Insulated flooring is some treated, movable, detachable wooden flooring, when used as an electrical test, the floor is assembled first, and then, standing on the floor for testing, and there are insulating gloves, which are insulated gloves that may be flexible.

There is also the isolated power supply, which is to convert the electricity on the upper floor into a safe voltage, and then pull it to the test bench.

It's all preparation, and then, it's what you need and what you get.

"Students, today, we are doing a current test, using our commonly used light bulb, but this light bulb is different from the usual one, you say, what is the difference......

Balabala, the teacher is lecturing and asking questions from time to time, and in the hands of the students, each of them has a handwritten piece of paper, the title is, Experimental Lesson 3, Electric Current Experiment.

Then, the students went to get the materials, what light bulbs of various powers, what wires, ammeters, voltmeters.

Well, Yang Qiao's most proud thing is that he made this ammeter, voltmeter, and then, there is also an extended resistance meter, well, and a pressure gauge that has nothing to do with electricity.

…………

"Baby Niu, how, what do you think of visiting such an experimental class?"

"Do the experiment, do the experiment!"

When Yang Qiao was talking to Niu Baobao, another group of students came in, and they still repeated this experiment, and if they didn't understand the previous class, they would apply to stay, visit, or participate in this class.

"Report to the teacher, I didn't understand this class, I want to apply to stay and continue to study."

"Well, allowed, if there are still people who haven't learned, they can also be listed, otherwise, there will be no chance in the future."

As the teacher's words fell, several more students first raised their hands and then walked out.

However, they, first of all, will sit in the place where Yang Qiao and they visited, and when the lesson is at the end, they will be able to do it, otherwise, they really need to find time to do it, either in the evening, or in the morning.

Well, there is no morning self-study, evening self-study, but there is time for morning and evening additional classes to review.

"Okay, this class is over, next, I will change to another laboratory to do experiments, and this laboratory, there are two classes tonight, tomorrow morning, there is another class, if you need it, you can apply to come to study."

"Baby Niu, look, here, it's a place to visit, a place to comprehend, it's not a teaching class, that is, this experiment will be done at a fixed time every day, and what is being done now is an ancient experiment, and it is an experiment that has been applied."

"Already applied?"

At this time, Yang Qiao took the baby cow to a large classroom-like place, well, it is big, there are several unrelated tests going on in it, on the one hand, there are a lot of wooden barrels, which are filled with water, on the other hand, it is upstairs, relatively high, nearly ten meters or so, there is a copper pipe put into the bucket, and then, from the copper pipe to the lid, the top began to pour water.

"It's not this test, it's the pressure of the test, so that the students can visit and comprehend, and over there, uh, it's not the apple that smashes the head, but the ball that smashes the head."

"You say, I'll let it go, this ball, will it fall up or down!"

Well, there is not much to see, and there is no response, perhaps, sometimes someone will respond, naturally it will fall, when will you see the things that have fallen in the past, but, it seems, that cotton, dandelion will fall up!

Well, that's the observation lesson.

"Baby Niu, look, this is the so-called used thing."

Here, there are three inclined planes, one straight inclined plane, one curved inclined plane, and one long straight inclined plane.

"Baby Niu, look, these three little balls, okay, ask you, you don't know, I haven't taught you the shortest straight line between two points, but this one doesn't match this."

I saw the person doing the experiment, blocking the three balls with a pole at the same time, and quickly removed the pole, and then, the ball fell, well, the fastest, which is the fastest downward slope to the end.

"This, brother-in-law, let me think about it, think about it, where have I seen this style of thing, ah, by the way, some roofs in the palace have this bend, it is said that this water can be washed out, isn't that the truth!"

Sure enough, imperceptibly, the baby cow is still easy to think, this, someone has also introduced the building in the palace, otherwise, even if you see it, you can't contact there, this, it's an ancient practical technology, well, I don't know how the ancients calculated it, or experimented.

"Teacher, why is that?"

On the side, there are students, well, come to do experiments, learned, have not yet finished class, with the permission of the teacher, come out to visit, naturally, there are also outsiders, such as, some technicians at home, craftsmen or something, it is a curiosity, or, it is also a task requested by Yang Qiao.

Maybe, it will lead to a few geniuses, well, it can't be introduced, but it can also make people remember that this thing is like this.

"Brother-in-law, is this thing just doing it back and forth?"

"Well, once someone understands and has a theory, it will become a normal experimental class."

"You see, this slope is not the same as the roofs of some luxury buildings, there is such an inclined plane, this inclined plane, this inclined plane, is to make the speed of the rain faster, if it is like this, this rain, will fall like this, if you use this inclined plane, this rain, will rush out like this, and then, it is such a route to fall."

Here, there are not only experiments, but also some drawings to explain to the students.

Well, these things are not for educating students, but mainly for training teachers, even if you don't understand it, you have to memorize it clearly, until you meet some genius, you can really understand it, and you can explain it with theory, not just use physical experiments to prove this kind of thing.

"Niu Baobao, this experimental building, called the second experimental building, naturally, the first is the one of the enlightenment class, and the third, not the experimental building, but the test site, that, but it is big, but at this time, they are all brought together to the science and technology city, every ten days, there is a fixed day to do experiments, to the science and technology city to do experiments, that is a large-scale test."

That is to say, here, there are some small tests, and some tests, maybe dangerous, maybe not dangerous, so, at the beginning, when this building was built, it was already decided, what kind of laboratory was it, this reinforcement, it was not the same, for example, there was a chemical laboratory, naturally, to prevent explosions, if it was upstairs, well, it was placed on the relatively solid first floor, and it was specially reinforced.