Immediately afterward, when Ningbei was visible to the naked eye, the fluid in the beaker gradually became viscous.

In the end, with the reduction of moisture, the toothpaste made by Ningbei is basically completed.

Looking at the overall gray toothpaste, which was slightly unsightly, Ning Bei's face suddenly turned dark.

"Is this a success?"

Although he didn't want to say it, he still felt that the toothpaste he made seemed to be ...... It seems that Ollie who has indigestion gives ah......

Even Ningbei himself has this idea, let alone the audience in the live broadcast room.

They let out merciless taunts.

"My good, I won't watch Brother Bei's live broadcast for a while, what is Brother Bei doing? Live broadcast even Ollie gives? ”

"I know it's toothpaste, but I want to say, like! It really seems! ”

"Brother Bei, don't be afraid, try the toothpaste you made bravely, it tastes good! (doghead smile)"

"Old iron, you can't taste bitter and spicy, you never know the sweet and sour. Today, the eighth child will challenge you with a handful of sweet and sour. Ollie, the brothers! ”

"Brother Bei, why don't you try the toothpaste you made, can't I brush you with the Cloud Piercing Arrow?"

"I'm already brushing gifts, Brother Bei, listen to my brother's words, close your eyes and make it!"

“……”

Although the shape of the toothpaste in front of him was a little unsightly, although the audience in the live broadcast room had been mocking him, Ning Bei could be sure that this was the toothpaste he needed.

The reason is also very simple, because he already smells the toothpaste.

That's the smell!

An inexplicable smell of toothpaste.

As for the attempt that the audience said, it must be tried, but this needs to give Ningbei a certain amount of preparation time.

Looking at the appearance of 'Ollie' in front of him and the inner 'toothpaste', Ning Bei also made a long mental preparation, so he slowly took out the toothbrush he had just made, dipped a little toothpaste from the beaker and put it in his mouth.

Because it is not possible to make nylon silk for the time being, Ningbei chose a toothbrush used by foreigners in the early days.

That is, a rough piece of cloth on a stick, although the effect is not as good as that of a modern toothbrush, but at least it works.

As soon as the toothpaste entered his mouth, Ning Bei suddenly showed a satisfied smile.

Toothpaste, he's done!

And it's a one-time thing!

Ning Bei smiled and looked at the toothpaste in front of him, although the appearance was still so unsightly, but it wasn't because he hadn't added pigment yet!

When the pigment is put into the toothpaste, doesn't the small appearance of the toothpaste become better?

And this is the first time he's made it, so it's good to be able to do it like this!

Seeing Ning Bei smiling, the audience also knew that he had succeeded.

"Speaking of which, Brother Bei's hands-on ability is still quite strong, and he actually made toothpaste!"

"Brother Bei is awesome! Looking at Brother Bei's intoxicated appearance, I thought he had eaten something delicious in the world! (doghead smile)"

"I poured out all the toothpaste just now, to be honest, in addition to the color is better, it is really not as good as the toothpaste made by Beige. My toothpaste is thin......"

"Damn, don't talk about it upstairs, there's a picture!"

“……”

Ignoring the audience who became more and more disgusted the more they chatted, Ningbei struck while the iron was hot and began to make the second more ancient way of toothpaste.

This toothpaste is much easier to make, and it can even be described as no difficulty!

The ingredients needed are salt, mint, pepper, and dried irises.

This primitive toothpaste was invented by the ancient Egyptians, and when ground into a powder, it turns into a paste that cleans the teeth if it comes into contact with saliva.

However, given that there may not have been irises in the Tang Dynasty, it is even more impossible to produce dried irises flowers.

After consulting the audience in the live broadcast room, Ningbei planned to replace irises with jasmine.

Both have anti-inflammatory effects and are very similar to use.

Therefore, the raw materials needed to make this ancient toothpaste are salt, mint, pepper, and dried jasmine.

These are ready-made and just need to be put together and ground into a powder.

Because Ningbei has been exercising, his body is very strong, so it doesn't take much time to do this kind of experiment.

Soon, he crushed the four substances into a fine powder.

This is also commonly known as tooth powder.

Ning Bei tried it a little, except for the salty taste, the rushing point, the fishy spicy point, and the urge to make people want to sneeze, there was nothing else.

And because of the addition of mint, I believe that using this tooth powder in the morning will definitely make people refresh all day! It's hard to think about it!

After slowly trying, Ningbei added some flavors and saccharin to the tooth powder, so that the taste could be greatly improved, at least it would not be as choking as before.

At this point, the two toothpastes are considered complete.

Looking at the two kinds of toothpaste, Ning Bei was very happy, and even a little proud.

Both toothpastes are all over again, who is not proud of him?

However, Ning Bei also knew that now was not the time to celebrate, so he restrained his emotions and began to make other experiments.

Now that the big toys and models haven't arrived, let's start small.

The Four Great Inventions, Soap, Soap, Cement, Glass, Cotton and Wool......

There are a lot of experiments waiting for him!

Now is definitely not the time to slack off, on the contrary, his experiment has just begun!

There is a long way to go, and we still need to explore slowly!

……

At eight o'clock in the evening, Ning Bei left the laboratory with a smile.

Today's harvest is full, and he will come back to the experiment tomorrow morning after his workout.

Aim for less than fifteen days, and finish all the experiments.

However, Ningbei is not in a hurry about this matter.

Because some experiments use time, for example, winemaking, there are no ten days and half a month, and even if the wine is brewed, it is sour.

So you can't be in too much of a hurry, you have to take your time.

Witnessing Ning Bei leaving the laboratory, a woman suddenly walked out of the shadows in the corridor.

Qin Yangyue pursed her lips and muttered: "I thought that Brother Bei had opened his mind, but who knew that he was still a dead straight man, alas......"

At the moment, her tone was very disappointed.

Since receiving Ningbei's flowers, Qin Yangyue ran out of the laboratory because she was too shy, but in order to make it easier for Ningbei to find her, she had actually been in the laboratory next to her.

In Qin Yangyue's opinion, since Ning Bei gave her flowers, would it be far away to take the initiative to invite her on a date?

So she has been waiting, waiting for Ningbei to find her, and take the initiative to ask her.

As long as Ningbei pays attention, you can check that someone in the laboratory next door is absentmindedly looking at the mobile phone, and the sound of the mobile phone is quite loud.

However, Ningbei did not have this heart......

Because he was so engrossed in the experiment that he didn't even notice the movement in the lab next door......

This is bitter Qin Yangyue!

In order to wait for Ningbei's active invitation, she stayed in the laboratory next door all afternoon this afternoon, and finally heard the movement of Ningbei Laboratory opening the door, but what she got was Ningbei's back when she left!

Just looking at the back, Qin Yangyue felt ruthless!

Turning his head to look at the laboratory used by Ningbei, Qin Yangyue's gaze became firm.

"I want to see what kind of experiment made Brother Bei so addicted that he actually stayed in the laboratory for an afternoon!"

As she spoke, Qin Yangyue took out the key to open the door of the laboratory.

As a middleman who rents to the Ningbei laboratory, how can you do it without a spare key!

Of course, her purpose in doing this is mainly for the sake of Ning Bei!

In case he faints in the laboratory, I can open the door in time to save him!

Walking into the laboratory and looking at the big bags on the ground, Qin Yangyue was a little incredulous.

"Obediently, how many experiments are you going to do here?"

Qin Yangyue really felt incredible, because Ning Bei was not a science student, and he studied literature before.

Why do liberal arts students do so many experiments?

I don't understand, I don't understand.

Qin Yangyue then walked forward, and there were two beakers on the table next to him.

Looking at the contents of the two beakers, Qin Yangyue suddenly felt that the whole person was not good.

"Hey, what's in these two beakers?"

Inside a beaker is an indescribable sticky object; The other beaker was better, but I couldn't tell what it was.

This made Qin Yangyue's scalp tingle.

What experiments is Brother Bei doing day by day?

With the attitude of not touching if she didn't know, Qin Yangyue continued to walk forward.

There was a compass on the other table, and Qin Yangyue just glanced at it and didn't say anything.

There are more compasses, and this compass looks rough, and it shouldn't be worth a few dollars.

But what Qin Yangyue didn't know was that this compass was made by Ning Bei himself.

There is also a temperature lamp in the deepest part of the laboratory.

Qin Yangyue slowly walked to the temperature lamp, only to see a few rough but translucent sheets of paper wrapped in a wooden frame in front of the temperature lamp.

At this moment, no matter how stupid Qin Yangyue is, he knows what this means.

"This ...... Is this paper? Brother Bei is learning papermaking? ”

Suddenly, Qin Yangyue's small head was filled with a big question mark.

Brother Bei borrowed the laboratory, is it used to learn papermaking?

The question is, modern paper is so cheap, so why did he still work thanklessly to learn the ancient papermaking technique?

Hasn't this papermaking technique been eliminated by history long ago?

Qin Yangyue really couldn't understand what the meaning of this was!

It's a pity that Qin Yangyue didn't know that the next place Ningbei was going to was a dynasty where even paper was a rarity!