Sometimes the ancients called it Kongqi Tongqi, and Taoism calls it Yuanqi and Qingqi.
Although it is not exactly the same as our modern concept of air, these three people have heard of it.
"Air also has weight.
I will talk about this later.
I think the reason why the water does not flow out is because the air has a pressure.
It suppresses the water from the outside and prevents the water from flowing out.
I call this force air pressure or called Atmospheric pressure.”
"There used to be water in the glass tube.
Now the water surface has dropped, but the outside air has not entered, so I call the air inside it a vacuum.
Why doesn't the water drop?
I just said it is because there is air pressure outside.
I have summarized this phenomenon and it can be called nature’s fear of a vacuum.”
After speaking, he smiled and looked at the three people who were digesting his statement.
He had experienced the IQ of these three people.
It was a very happy thing to be able to discuss some natural science issues with these people, and he could also Guiding them in certain theoretical aspects gives them a sense of elation.
Soon, these three people had accepted the concept of air pressure, but they couldn't think of a place where it could be used.
At this time, Zhu Youxiao said again: "Everyone has seen how a teapot boils water.
The water vapor inside will push up the lid.
I think this power can be used to do something, such as driving the wheels."
The horse-drawn carriages on the railway have been tested and are completely practical.
But in Zhu Youxiao's view, the steam engine still had to be built, but as for how to build it, he didn't know, so he thought he should first tell these smart people the principles he knew, and maybe they would do it if they thought about it. came out.
He was responsible for providing principles that he didn't know were correct, and providing enough money for their research.
In his opinion, the conditions of European scientists at that time were no more than this.
He doesn't believe that Chinese people are inferior to foreigners, and judging from the results of later generations of students, this is not the case, so I have great expectations for the completion of steam engines.
"No matter what you want, I can provide it to you.
Try more.
Dreaming may be harder, but practice can lead to true knowledge."
Zhu Youxiao left these words and walked away with Wei Zhongxian.
Do you do it slowly?
I am the emperor and I am only responsible for acceptance.
After leaving the weapons bureau, Shengjia went to the villa area outside the Capital University, because today he wanted to test a newly made item: monosodium glutamate.
Alum oil, also known as sulfuric acid, was already available in the Ming Dynasty.
Zhu Youxiao remembered that hydrochloric acid could be generated by reacting concentrated sulfuric acid with table salt.
With hydrochloric acid, it was easy to produce MSG.
In wheat bran gluten, the content of glutamic acid can reach 40%.
The gluten is first hydrolyzed with hydrochloric acid to obtain a black hydrolyzate, and then white crystallized glutamic acid is obtained.
Then react glutamic acid with sodium hydroxide, concentrate, and dry to obtain sodium glutamate, and sodium glutamate is MSG.
Although the dosage of MSG is small, it has great effects.
It can be used in cooking to increase the flavor and is a good product to make money.
The royal chef in the villa was ready, and Zhu Youxiao asked people to call Xu Guangqi, Fang Congzhe, and Ye Xianggao from the nearby villa to have dinner together.
The three of them had already been notified, but they all thought it was the emperor giving some food, but unexpectedly they were eating at the same table.
Now the three of them quit.
No matter how much Zhu Youxiao tried to persuade them, they refused to come to the table.
They had no choice but to find another small table for the three of them to eat, while he ate at the big table.
After the three of them had eaten for a while, Zhu Youxiao asked proudly: "My dear friends, I wonder if there is any difference between today's dishes and what you usually eat?"
Free novels bring you joy and joy ---> storyskyline.net
Fang Congzhe stood up and replied: "Your Majesty, I have always eaten less, but today I ate two bowls.
I feel that this dish is fresher than the food at my home.
Especially this bowl of soup, I feel it is very delicious."
Ye Xianggao and Xu Guangqi also stood up and said, "It's true.
This bowl of chicken soup tastes much better than the Han family's."
Zhu Youxiao smiled and said: "Because some new things are added to these dishes, I call it MSG.
As the name suggests, it is the essence of flavor.
That's why the soup is so delicious and the taste is so tempting."
Wei Zhongxian took some MSG and showed it to the three of them.
Zhu Youxiao said: "Just three or five grains of this substance can turn plain water into fresh soup."
Xu Guangqi took a bowl of water, poured the MSG into the bowl, stirred it with chopsticks for a while, then picked it up and took a sip and said, "It's true."
Zhu Youxiao said: "I have tried this MSG several times.
Your empirical spirit is worth learning from."
Fang Congzhe and Ye Xianggao were confused.
The emperor said that plain water turned into fresh soup, but Xu Guangqi didn't believe it.
That was a serious sin, but the emperor actually said it was worth learning.
Zhu Youxiao saw their doubts and said: "Science is not a matter of falsehood.
It is a basic requirement not to believe easily.
Even what I say can be verified."
Only then did Xu Guangqi realize that he did not believe what the emperor said, and he quickly knelt down to plead guilty.
Zhu Youxiao winked, and Wei Zhongxian held Xu Guangqi's hand to prevent him from kneeling down.
Zhu Youxiao said: "This is a scientific question, sir, why should you do this?
Of course you can verify such a simple question by yourself."
Xu Guangqi had no choice but to say: "Please forgive me, Your Majesty.
I'm just used to this, and for a moment I forgot that it was the Emperor who said it."
Zhu Youxiao laughed and said: "My dear friends, I want you to estimate whether there is a market for this MSG.
If it is priced, how much should it be?"
Ye Xianggao smiled and said: "There should be a big market for this MSG, but the three of us can't help much in terms of pricing.
The factory supervisor has always taken care of the emperor's diet, and he should be the most familiar with this aspect."
Wei Zhongxian smiled at him and thanked him for his kind words.
Only then did Zhu Youxiao remember how these veterans knew how to cook.
Confucianism requires gentlemen to cook far away.
Wei Zhongxian was originally in charge of the Imperial Food Department of the Xixin Department, but he had always forgotten to ask him.
Although he was responsible for the development of MSG, he did not say much about the economic value.
It seems that this guy is still very good.
Be cautious. very nice So he looked at Wei Zhongxian, who quickly lowered his head and said, "Your Majesty, from my perspective, if this MSG is priced at ten yuan or one tael, it should be more appropriate."
Zhu Youxiao thought for a while and said: "Factory minister, you said last time that the cost was five yuan per pound, so now you have made it thirty-two times.
Isn't the profit of thirty-one times too much?"
Xu Guangqi answered: "Your Majesty, hope is precious.
If the price is high, I'm afraid the sales will be better
.
":