A white paper with a yellowish swipe the size of A1, on which a stuffy jar has been drawn, which is actually a cylinder, and the two apprentices continued to see that Yao Ran made a push plate from the part of the sliding rod inside the cylinder. Pen, fun, pavilion www. biquge。 info

Actually, this is a shunt. The whole shunt just uses the working principle of the crankshaft to drive the shunt, and when the piston moves, the shuntter just moves in the opposite direction.

Then Yao Ran drew the same stuffy tank with two cylinders, and then drew a third cylinder in the back. The second and third cylinders have empty air intakes in front of them.

Now many people don't understand. In fact, even if such a device is very complicated, it is not very easy for middle school students in later generations to understand, let alone in this primitive society, who only memorize a few Chinese characters by rote.

After drawing the picture in his hand, Yao Ran stood up straight, put his hand on the table in front of him, and looked back at the steam engine that Yao Huo and Xiaoping had made, with a smile on his face.

Then he said, "I am still very satisfied with the results of the two of you, because you have figured out the principle of noodles here and made it work. There is a reward, on behalf of the family, for your outstanding performance. Give you two women, and count them among your wives and concubines. ”

Yao Ran really gave up the capital, but Yao Ran's words were not finished, half of them were beaten with a stick and then given early, a sweet date to eat,

Yao Ran's words were not all finished, and then he began to continue, "There are many problems with the steam engine you made, but you are not to blame, so the reward remains the same. I'll tell you about the mistakes you made. ”

Walking straight to the side of the boiler, Yao Ran turned on the fault finding mode, "Okay, talk about problems, say mistakes, don't do things right, of course, have you both been kicked in the brains by donkeys?" ”

He pointed to the huge teapot, which was four or five cubic meters in size. "Even if you want to store more water, make such a tall and long bucket, and the heating surface is so small, and you can only start working after boiling for an hour, are you full of teapots in your head?"

Yao Huo and Xiaoping listened to Yao Ran scolding the two of them, and the two of them didn't know anything, they just took their own notepads and wrote quickly on them, it seems that this is not the first time they have been criticized like this.

Then Yao Ran pointed to the location of the combustion under the boiler, "Is the flame burning high internal flame temperature or the outer flame high temperature." Didn't I tell you about it? I don't need to tell you where it is, think about why the blast furnace is so high, you two put this big teapot so low because you two deliberately controlled the temperature and didn't want him to heat it? ”

Then Yao Ran walked under the big teapot again, pointed to the pipe on his head and said, "You two take out the drawings and show me, is it my clerical mistake and the wrong diameter of the pipe, what is your thigh-thick pipe for?" Do you want to condense distilled water? Don't you know that the larger the area, the greater the heat dissipation? Can there be high pressure when the steam temperature is low?

And do it so long! Is it because the height here is lower than the back? It's because I didn't say how long the gas supply pipe should be in the original drawing, but why don't you make a hundred meters? What are you doing with this more than three meters long? They all have heat, and there is gaseous water in them, are you afraid that the boiler will burn them? ”

"Did you two sleepwalk and do the work?" All the people around him listened to Yao Ran training the two disciples, and even those who listened felt bold. But Yao Huo and Xiaoping seem to be accustomed to it, and the place where it should be recorded is recorded, and the one that should be shielded will naturally not be heard.

But when Yao Ran said this, he was very comfortable when he said it. "You two brains add together, can't you figure it out? Why can't you make two cylinders with only one cylinder? Can't you make three? Have you tried it? You still walk on two legs. Do you use one at this point? Two hands or one hand. Can you convert the mechanical power transmitted by these cylinders to the place where it is needed, here is an empty car, to show you the principle. ”

"Even if you hang a fan blade, you can also blow the wind for everyone, and you can also feel the spring breeze brought by some industry." Yao Ran's mouth was like a river, and he scolded Xiaoping and Yao Huo's finished products to the end.

But the people around him who followed Yao Huo to learn finally heard the signs, and began to find practice behind these modifiers, as well as creativity and structural changes. It's all a miraculous modification, and if you shorten the pipeline a little, will it have as much effect as the patriarch said? It seems to be the truth. The passage length is naturally smaller.

High-pressure gas, yes! By transforming the water into a form, it is the foundation of the work of this equipment, and the gaseous water is not under high pressure, and what is used to push the equipment forward.

What Yao Ran said was actually very pertinent, about the bearing limit of the equipment, such a dangerous thing, Yao Ran dared to bring it up, but Yao Ran didn't mention it because no disciple thought of it.

In the interval between Yao Ran's words, Xiaoping said, "Teacher, how much can the maximum temperature of this equipment withstand, although the furnace temperature can continuously provide heat and because of the water to transfer the heat, the high-pressure potential energy is converted into physical kinetic energy, so what is the limit of this equipment?" ”

"Excellent! It's very good to have a problem! But I'm supposed to pump you, is it the limit when the water is boiled dry? Is it the limit when the pressure bursts? But before asking the question, did you think about it yourself? If you think of a question, can you explain it and ask it again? Don't be smart! ”

During the lecture, Yao Ran seemed to have eaten gunpowder, the most poisonous was very poisonous, and more than a dozen people were a little overwhelmed, but the more directly Yao Ran scolded, the more everyone listened.

criticized the entire steam engine, and after one time, Yao Huo and Xiaoping came out, and the rest of the disciples and grandchildren were almost a little suspicious of the meaning of life.

Walked back to the big wooden table just now, and began to draw in detail on the drawings just now, and after drawing one, he marked a size on the side, and muttered numbers and names in his mouth.

Now is not the stage of lecturing, but to start creating, in fact, there is no creation, Yao Ran criticized Yao Huo and Xiaoping's works, because Yao Ran did not study the steam engine in detail before this, Yao Ran was afraid that he would show his timidity. Therefore, scolding can make you appear more confident.

If you stumble to talk about the things you want to improve, you are likely to say the wrong thing, or not deter the young people in front of you. But apparently Yao Ran's strategy worked, and it was very successful.

And Yao Huo and Xiaoping, in fact, can occasionally meet when their teacher sprays, and every time they encounter such a time, it is when Yao Ran begins to make a lot of dry goods.

The last time was when the boats were being made, and the other time was when the alpaca carts were being designed. There are also a few times when I can't remember what started with it, but what Yao Ran said, including some sarcastic words, was also written on his notebook by the two disciples in crooked young round handwriting.