The role of sulfuric acid is naturally more than that, but what Li Yuanji knows and can do, that's all.

As a protagonist who is not a science and technology nerd, Li Yuanji does not feel that he has any problems with his current development, is it unsatisfactory?

People are forced out, if it is placed in the future life, Li Yuanji can be sure that he will never remember so many things that he has seen or are useful.

Besides, science is such a thing.

It has never been a matter of one person, and one person's strength is limited after all, Li Yuanji only needs to grasp the general direction.

As long as this can be done, it can be guaranteed that Datang will avoid detours as much as possible and waste a lot of time, but sometimes detours are also an opportunity, and there are many things that are found in this seemingly detour process, and deliberate research has no effect.

Just like the previous primer problem, if it weren't for the chemistry class's successive mistakes, how could it be a mistake to study the ingredients of the primer?

But this is not the only way to develop, what Li Yuanji knows in his mind is the fruit of the development of hundreds of years ago, so he doesn't need to take detours, he knows what he wants, what is useful, and not the kind of thing that after investing a lot of money, he makes a bunch of things that he doesn't even know where he can use them.

Of course, Li Yuanji still has a sentence, let me do everything, so what do you want those scientists to do?

"Father, is this the power of science?" Li Chengguang, who is ignorant, has often appeared by Li Yuanji's side recently, looking at a series of actions that are not surprising, but bring such a surprising effect of hot-dip galvanizing, Li Chengguang is a little excited, but also a little confused, more or more curious.

During this period of time, Li Chengguang worked a lot harder than before, staying in Guozijian every morning to study, and in the afternoon he would study some other subjects by himself, the categories were very miscellaneous, and he was studying everything he could find.

In the evening, Li Chengguang would invite some officials to a banquet.

Yes, the people invited to the banquet are not fixed, and the banquet is not just as simple as eating and drinking.

Among the officials, there are ministers, middle-level officials, and grass-roots officials, and their purpose is only one: to learn how to look at the problems of different positions from different people and from different standpoints.

Although Li Chengguang has not learned anything so far, it is not that he does not work hard, but at his age, it is too early to learn these things.

In addition, the officials did not dare to say everything about themselves.

Otherwise, once the emperor thinks that they are inducing the future prince, then the problem will be serious.

Therefore, in the face of many questions from Li Chengguang, officials often choose to be vague or point to the point, even Cheng Zhijie, who is accustomed to going straight to the point, does not dare to reply according to his own character when facing the doubts raised by Li Chengguang.

Li Chengguang's actions, Li Yuanji saw it in his eyes and was very pleased.

It is impossible to say that no one is behind him to guide him.

At least some people told him that he had the idea of making Li Chengguang the crown prince, and he should work hard, seize the opportunity to learn everything he could, and determine the position of the crown prince as soon as possible.

Who is this person?

It could be the Empress Yang, or it could be Yu'er, or some minister.

But it doesn't matter who directs, Li Yuanji doesn't care, because everything is under surveillance, including the details of his conversation with the minister.

"This is the power of science, it is very powerful, it can help Datang, and it can also destroy Datang." Li Yuanji nodded, pointed to the barrel of sulfuric acid and continued: "I call it sulfuric acid, you have seen its effect, and not only now, if there is no accident, even if it is left here in the sun and drenched with water, within a year or two, it will not have any rust." But if this vat of sulfuric acid is poured on this land, I don't know how long it will take to recover, but at least I am sure that within ten years, this land will be left without grass. ”

"But there is a solution to everything that is bad, the avenue is fifty, the sky is forty-nine, and one of them is gone. Anything, anything, when you decide to do it, to use it, you have to think about it, if things are not going the way you expected, but the worst outcome, what will you do to solve it?

Just like these sulfuric acids, they are very easy to use, but they are also very destructive, and with a large amount of use, it will inevitably lead to more and more waste sulfuric acid that cannot be disposed of and is directly discarded? Or will it be mothballed? No matter which one you choose, the harm is always there.

Therefore, the best way is to neutralize its toxicity through chemical methods, so that after it is discarded, it will cause minimal or no harm to the cultivated land.

In addition, until a solution is found, it is better to discard it than to risk using it, otherwise by the time the consequences occur, it will be too late and it will be too late to regret it. ”

The emergence of chemistry will inevitably cause a lot of harm to the environment, and it may be difficult to solve the haze caused by industrial reform.

Because the technical conditions are here, if you want to develop, it is impossible to give up these, but the advantage now is that the number of factories will not be as large as in later generations, and the pollution to the environment will be relatively less.

But chemistry is different, and the post-processing of chemicals is more troublesome, and once there is any slightest mistake, it will cause more serious consequences.

For example, cancer villages, such as the lack of grass near rivers, and so on.

Li Chengguang nodded subconsciously, no one knows if he understands or not, anyway, Li Yuanji feels that Li Chengguang does not particularly understand.

Li Yuanji wanted to say more, but thinking that this was just a seven-year-old child, he said too much, and his brain capacity might not be able to be plugged, what he said today was enough for him to digest during this time, and if he said more, it didn't actually make much sense.

Cultivating the prince is not a matter of one or two days, it is still a long time, even if he becomes the prince, there is still a long way to go, he has to learn, he has to adapt, there is still a lot of work.

Time is moving forward day by day, just as the speed of the calendar is flipping through it.

Li Chengguang has also run to Li Yuanji's side more and more times, and the cabinet has almost become the place where Li Chengguang goes most often, although he still has no right to speak.

But the ministers gradually returned to their old posture, arguing, scolding, and even pulling each other outside to fight alone, and for a while, the whole cabinet seemed to become a noisy vegetable market, and these cabinet members, who seemed noble from the outside, became the relationship between butchers, vegetable sellers and guests.

Lee Seung-kwang finally figured out where those feelings came from when he first attended a cabinet meeting.

When the ministers showed their true selves, the original image collapsed in an instant.

……

In the blink of an eye, the time of the year flies.

A lot of things have happened in this year, but this year has been peaceful, there have been surprises and worries, but in the end it has turned into a trace of calm.

There are more surprises, more worries, and everything else doesn't seem to matter, or rather, numbness.

The treatment method of sulfuric acid has been found, as simple as exploding, is to throw limestone into the waste sulfuric acid, so that it can naturally produce a chemical reaction to neutralize, although the color of the water is still very unhealthy, but after many experiments, it has been proved that even if the color of the water is problematic, for the land, for the yield of food, it is not particularly harmful.

The rust problem of the boiler was also well resolved, and at least when the dismantling inspection was carried out after three months of continuous use, it was found that the internal structure was in good condition, and there was hardly any sign of rust and corrosion.

The test on the Haizhou side was also very similar, but the corrosion was slightly worse than that on the boiler side, but this was only the original version of the steel, just a comparison of the steel after hot-dip galvanizing.

Seawater is very corrosive, but marine steel has the advantages of marine steel, such as not being subjected to excessive temperatures, which allows the outside of the galvanized layer to be protected by a coat of paint.

So when the two are combined, the situation is actually quite different.

The Academy of Sciences continues to work hard to carry out its own duties, as before, but unlike in the past, after a month of punishment for the chemistry class, all operations pay more attention to safety norms than before, even if they waste materials, they must ensure their own safety.

It's true that there are touches, but more of them are reluctant, and it's all money......

On the other hand, nature is the take-off of the economy.

Starting from scratch and starting from scratch, as long as you don't stop taking steps, you can guarantee that there will be new changes every year.

And as the railway was completely accepted by the people and businesses, the direct consequence was that in the first full year of the railway's use, it turned out to be profitable, with a profit of 4,722 yuan.

With a profit of more than 4,700 a year, is this a profit for a railway?

No, it's just a real profit, because before that, the railway's debt situation was minus 240,000 guan, that is, in less than two years, from minus 240,000 kan, to a profit of more than 4,700 kan, which also includes all the expenses during this period.

If it continues at this rate, then by this time next year, its profit will be at least more than 250,000 yuan.

Is that how the railroad makes money? Really make so much money, passenger trains depart twice a day, freight trains, every hour depart, a day needs to depart at least ten times, the opposite is twenty times, and the profit of each trip is between seventy and ninety times, take the median value, according to eighty times to calculate, a year is nearly 300,000 runs, this is just a truck.

Of course, the account can't be counted like this, because he is a train......