Chapter 300

"In this world, nothing is eternal. Water will turn into steam or freeze, stones will be weathered into sand and dust, and metals will turn into liquids at sufficient high temperatures. Under changing conditions, nothing is eternal." Ren 8000 stood on the stage and talked to the crowd.

Everyone below listened honestly, although they looked older and stronger one by one, which was different from ordinary primary schools in remote mountainous areas. But the essence is the same. Ren 8000 has learned to ignore the surface and look at the essence.

At least in this case.

Ren 8000 has begun to consider whether to make school uniforms for them.

And a red scarf and a bar, two bars and three bars.

However, Ren 8000 thinks he can change it into one knife, two knives... Up to nine knives.

After a period of time, people are familiar with this new life and new identity.

And inspired a little interest.

After all, many of the things Ren 8000 said were unheard of or even thought about.

Some contents are acceptable to the public, while others are difficult to accept. For example, when Ren 8000 just said, someone immediately raised his hand and asked questions.

Ren 8000 was very satisfied. Although it was not a long time, under the care of his gun, these bear children finally learned to raise their hands and ask questions.

The gauze on several students is the price of love.

We don't rule out that two of them were injured by mistake, but don't pay too much attention to these details.

"You say!" Ren 8000 was made of a piece of pure iron. The finger thick whip pointed to a teenager below.

"The souls of our ancestors are eternal. They have been guarding us." The boy suddenly shouted.

Ren 8000 tilted his head and looked at him. His eyes made him a little cramped, and he also raised his vigilance in his heart.

"That's right. There are still some things in the world that people can't detect, including the heroic souls of our ancestors. So now what I teach is the basic composition of the world, those that have been found, and those that are still unknown will be handed over to you.

Science is to stand on the shoulders of predecessors and constantly discover the unknown, not deny the unknown. I hope you will remember this. " Ren 8000 smiled calmly.

He does not deny the existence of those heroic souls, just as the earth cannot deny the existence of ghosts. These are unknown things, which have not been found at present, but it does not mean that they do not exist.

Just as he hasn't found the reason for crossing, it doesn't mean he hasn't found it, it only means he hasn't found it yet.

Ren 8000's calm smile relieved many students and made them happy.

This is a rare opportunity for Ren 8000 to express his affirmation to them.

Little Laurie Tonglan leaned on her chin and grinned, laughing at the fools around her.

”The world is composed of molecules, atoms and ions, which is the basis of the world. These invisible molecules, compounds and ions make up all the substances in the world. "

"Teacher, since we can't see it, how can we know that what you said is true?" Someone raised his hand immediately.

"You can't see molecules with an optical microscope. You need an electron microscope. If the conditions are suitable in the future, I'll get you a set. In addition, there are many ways to prove it. I'll tell you later." Ren 8000 said lightly.

Immediately someone asked what optical microscope and electron microscope were, and any 8000 simply answered these questions.

Usually the situation in physics class is good, and Ren 8000 is usually in a good mood.

So physics classes are put in the first section.

"Today, let's do an experiment about the structural transformation of water. First, under normal atmospheric pressure, water can reach the boiling point at 100 degrees, and change from water to steam..." Ren 8000 put the small pot, alcohol stove and thermometer on the desk as he talked.

"Come on, let's see. Now the thermometer has reached 80 degrees, and 100 degrees is the boiling point of water..." Ren 8000 said while everyone looked.

Although everyone knows that water will have steam after boiling, this is the first time such a formal experiment, and many people are very interested.

Then they watched the water temperature exceed 100101102103... 110

"Well, now it has been proved that at normal atmospheric pressure, 110 degrees is the boiling point of water and converted into gas. At this pressure, the temperature of water will remain at 110 degrees." Ren 8000 put out the alcohol lamp and threw the pot out of the window.

"Teacher, you just said 100 degrees." Little Laurie Tonglan has a bright face.

"The air pressure is not constant, and there are differences in each region. Usually, the higher the air pressure, the lower the air pressure. Now it's 110 degrees here. Just remember, the air pressure is high, the boiling point is high, the air pressure is low, and the boiling point is low." Ren 8000 discovered for the first time that the pressure of the world is different from that of the earth.

This also reminded him again that although he didn't feel too different, the world is different after all, and many places still have to be different from the earth.

If you want the world to develop science and technology, you need a little verification of everything.

Or I don't know when I'll be beaten in the face again.

Then he used saltpeter to turn water into ice in front of the people, which surprised them and immediately thought of the shaved ice sold outside.

This class talks about these two forms of water.

Near the end of class, Ren 8000 asked people to move the teaching materials they brought back to the next room and distribute them to everyone.

"Teacher, what is this?"

"Your future learning materials are from my country." Ren 8000 is not a Dayao man, as everyone knows. But few people really know which country Ren 8000 is from.

"I come from a very distant country, which is so far away that you can't reach it all your life. Our country is very different from here. In our country, people prefer to study the essence of the world. In our opinion, the degree of understanding of the world will become their own strength and do things they couldn't do before..."

"For example, the equipment that runs faster than a galloping horse, the equipment that can fly in the air, the equipment that can lift 100000 kilograms, millions of kilograms of objects..."

Ren 8000 is also the first time to tell people other than the female emperor something about the earth.

Before, I was afraid that people knew that they had a lot of good things in their hands and made their own ideas, so I didn't dare to say more. But with the change of status, he doesn't need to worry about it anymore, and naturally there's no need to hide it. Besides, I have exposed a lot of things.

Rather than let them guess, it's better to take this opportunity to speak briefly.

There's nothing to hide.

It's better than letting them guess whether they are from Daxia or Yunguo.

"Teacher, what is this thing?" Someone pointed to a picture just after opening the physics book and asked. "Is that what you said?"

"It's a high-speed railway. It can run more than 1200 miles in an hour, and there is no need to rest. It takes only one or two hours to reach the place where it took a few days to get there.

If there is this in Dayao, it only takes two hours from here to Pingcheng. If there is anything, our army can reach Pingcheng in two hours.

Ren 8000's words made all faces look surprised.

You know, it takes half a month for a carriage to travel from Lancheng to Pingcheng, and three to four days for a fast horse to whip.

If we have this thing when we fight again, we can say that we can support it at any time, and the war report can be sent back at any time. It is too valuable.

Most of those present here are the second generation of officials. Even if they are not talented and reckless, they can still think of this thing.

"It takes a lot of things to build a high-speed railway. I can teach you. When it can be built depends on you." Ren 8000 smiled.

He likes to see the look of excitement and expectation on these students' faces, and he has a great sense of achievement.

Then he told the students some other things. Those students were like listening to the book of heaven, and they all stared round.

Tonglan and Shigan are not distracted. They all listen attentively.

However, this kind of happiness did not last long.

In the second class, Ren 8000 roared again.

And there was gunfire in math class.

"Let the doctors come!" Ren Bayi's brain spoke loudly to Xu Wei. "Let them send someone to stay here as a school doctor..."