Chapter 1268

After three days of basic training.

When the sun just rose on the fourth day, Zhang Feng was dragged out of the sedan chair by the servants, threw it at the gate of Chang'an University, and then walked away without righteousness.

Zhang Feng squatted at the door and waited for a long time. Then he calmed down and rubbed his dazed cheeks. Then he entered Chang'an University.

The security of Chang'an University is very strict today.

In addition to Jia daoren personally pacing at the door with Modao, he directly mobilized more than 30 Zhang's five big and three thick men from the White Deer Academy.

In the hands of these men, they all carried a diamond shaped thing with a strange shape like a bamboo strip.

Anyone who knows will know his terrible name.

Mitsubishi army stab.

I don't know. I thought it was playing.

In the courtyard where Zhang Feng needs to do experiments today, there is no one except Zhang Feng and Li Chengqian.

In the middle of the yard, Li Chengqian and others perfectly built an open-air Laboratory for Zhang Feng according to the scale of the laboratory directly in the room.

The table was covered with a white list of things needed for the experiment.

The little alcohol left has been divided into countless alcohol lamps, which are burning at this time.

There are even a few not enough, we can only use tung oil lamp instead.

On the experimental table, there were not only phosphorus ore, but also some nitrate, charcoal and other things collected by Zhang Feng, and even some water rust that would appear only in the water that had not been moved for a long time. A large table was set up red and green.

Seeing Zhang Feng coming, several people quickly stood straight.

"Hello, Dean!"

Zhang Feng waved and asked several people to sit down. Then he said, "I won't tell you the rules. Today's experiment is very important and important enough to change the history of the Tang Dynasty and the existing farming methods. Are you ready?"

"Ready!"

Can they not be ready?

What time is it.

Moreover, since Zhang Feng said the beauty of the prosperous times, their Lao Tzu pointed directly at their noses. If they can't learn, they will be expelled from the house!

Who the fuck can stand this?

Others are fine. What about Li Chengqian?

He's the prince!

Although it is impossible to drive out of the house, it will obviously minimize his reputation and the impression in his father's heart!

This is what he can't bear.

This is tantamount to obliterating your own prince's road!

After several people left for protection, Zhang Feng picked up the experimental equipment on the test-bed and said, "although the extraction of phosphorus is simple, there are also some troubles. The main thing we do is to analyze the composition of phosphorus."

"Do you understand the composition of phosphorus?"

This is something they have been memorizing these days. If they can't remember it, Zhang Feng will really get angry.

After seeing several people nodding, Zhang Feng pointed to a big belly glass container as big as a washbasin and said: "In fact, the experiment of extracting phosphorus fertilizer is very simple, that is, grinding the components of phosphorus ore, separating them, distilling them into phosphorus steam through this container, and then guiding the steam through this conduit into this glass container, so that he can encounter water and naturally dissolve and precipitate..."

Zhang Feng explained all the steps of the phosphorus experiment, then asked Li Chengqian to come up, put on special rubber gloves, and then grind the phosphorus ore. this step is very simple.

On the other side, Zhang Feng filled the container with water and put it on the tung oil lamp. After adjusting the flame of the oil lamp to the highest, he poured the phosphorus powder into the water.

At this moment, something incredible happened to Li Chengqian and others.

With the burning of the oil lamp, the glass container began to boil violently, and then slowly the fog in the glass container became heavy.

After that, no one could see the scene, but it could be seen that in a curved glass tube at the top of the container, a trace of fog pulled by pressure slowly flowed towards the other end of the tube.

The other end of the pipe is placed at the bottom of another container.

gradual.

More and more fog entered another container, and gradually the fog became heavy.

Zhang Feng also pointed to the container to explain steam dynamics.

However, at this time, Zhang Feng didn't notice. What everyone didn't notice was that the water in the container baked by the oil lamp slowly dried up, but no one noticed because of the fog.

Only a loud bang was heard.

In an instant, all the glass containers on the whole test-bed burst, and even the glass fragments flew away directly. A large amount of steam atomized dust containing phosphorus was sprayed on Zhang Feng's back and Li Chengqian's face.

"Amount --!"

This time, everyone was stunned.

Although no one was injured after the cooling of the guide pipe and the steam was not hot, Zhang Feng reacted first.

Quickly drank: "everyone immediately cover their mouth and nose, and immediately go and drink a jar of vinegar for me!"

？？？

Everyone was stunned.

What is this operation?

Isn't this just a gun fight?

Do you want vinegar?

But they still ran to Chang'an University feebly according to Zhang Feng's instructions.

Looking for vinegar to drink