The second hurricane off the coast of Mingzhou arrived on the night of the second day of June, and once again pressed the pause button on everything.

Although it comes to an end, after all, it is still the flood season of large yellow croaker.

Such a hurricane, lasting for one day, will lose 10,000 quintals of fish, that is, 1 million catties. However, there is no way, even after hundreds of years, hurricanes are not something that humans can resist. Moreover, in this era, I don't know how strong the wind is and how much it sweeps. Zhu Yuan only hopes that Mingzhou can spend it safely like last time.

There is also the convoy of grain carriers that departed before.

The third batch of grain convoys set off on May 26, and Liu Laoqi, who was sensitive to the weather, had a premonition two days later, but he could not recall it, because the wind had been good before, and in two days, the fleet had already left the outermost Shengsi Islands area of the Zhoushan Islands and sailed into the open ocean.

Zhu Yuan wasn't too worried.

From the twenty-sixth day of May to the second day of the sixth month of June, in seven days, according to the calculation of latitude, the fleet should have reached the sea off Yancheng seven or eight hundred miles away.

Such a distance may be swept away by the periphery of the hurricane, but it should not have too serious a serious impact, not to mention, the grain fleet also has strict evacuation regulations, if the meteorological team accompanying the ship observes signs of a hurricane, it must immediately turn to the shore.

Speaking of which, even if there is no satellite, no radar, and even, even if Liu Laoqi has not been recruited before, Zhu Yuan has considerable confidence in the navigation of this era.

This confidence comes from Zheng He's seven trips to the West.

The Three Treasure Eunuchs made seven voyages, each of which took a year or two, but there is no record of a major loss to the fleet in history.

The huge fleet lasted to float on the sea for a year or two, could it be that Zheng He's fleet was so lucky that it couldn't even encounter a hurricane every time?

No way.

So, why is it that every time you go on a long voyage, you can go back and forth fairly safely?

A: Eucalyptus can be imagined.

In this era, even if there is no high technology, just the sailing experience accumulated by these people in this land for thousands of years is enough to provide a fairly reliable security guarantee for Zheng He's team.

Continuing to stand at the top of civilization for thousands of years, the biggest regret of this land is that it has not been able to find a direction to break through the traditional agricultural era.

Zhu Yuan intends to give this direction.

The inner house of the Camp Kaiji Mansion.

In stormy weather, if you can't go out, you can do learning.

I plan to write a book of "Chemistry" in the next few days, and count all kinds of chemical knowledge that I can still remember.

The first is the periodic table.

Hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chloride, argon, potassium, calcium.

It's a pity.

Zhu Yuan memorized the first twenty very much, and then later, because there were a few rare words, elements 21 to 25, he couldn't remember, but elements 26 to 30, iron, cobalt, nickel, copper, zinc, and a few more.

However, I also know that the elements 21 to 25, which I can't remember, are very important.

Among them is definitely titanium, which is one of the most important high-strength lightweight metal materials in the next few hundred years, and is widely used in various cutting-edge fields such as aerospace.

Then, manganese should be too.

As the metal that most often appears as an alloy alongside iron, Zhu Yuan thinks that manganese is likely to be No. 25 next to No. 26 iron, and the remaining three are really not remembered, but with reference to 'manganese', Zhu Yuan thinks that it should also be some elements suitable for alloying with iron.

Although he can't remember more, Zhu Yuan feels that the more than 20 elements he still remembers at the moment are enough.

It will be interesting to discover new elements in the future, and perhaps, in the future, there will be a new element called '塬'. No, the element doesn't seem to have a soil word, well, it's not a problem, just let it have it this time!

I drew the table, filled in some elements that I remembered, and then another very important point, the element symbol.

Zhu Yuan doesn't plan to refer to his past memories, this time, he will do it according to pinyin.

Hydrogen is q; Iron is TE; Carbon is T, and copper is Tg...... And so on.

Take the first letter of pinyin, or, if there is a repetition, add a pinyin tail letter.

Therefore, Zhu Yuan thought of a very 'explosive' formula, 2jdy3+t+l═j2l+2dy2↑+ty2↑, and planned to carefully study and study after this gust of wind and rain stopped, and make the most scientific black powder ratio.

This brings us to another important point.

Relative atomic mass.

Carbon (t) is 12, of course, there seems to be an isotope of carbon 14, not to mention, oxygen (y) is 16, sulfur (l) is 32, and so on, Zhu Yuan is more fortunate, at least a certain explosion formula, he remembers it more clearly.

Relative to the addition of atomic masses, combined with the formula, the most suitable ratio can be calculated, instead of the traditional simple formula of 'one nitro, two sulfur and three charcoal'.

However, there is a problem.

The best ratio, in this era, may not be easy to achieve, very simple, because of the purification problem.

For example, charcoal.

Even the best white charcoal fired in this era cannot be all pure carbon elements, and there must be quite a lot of impurities.

It's the same with sulfur.

Because potassium nitrate is soluble in water, it is one of the more purified ones at present.

In short, there are so many things that can be easily described as a formula that can make people step into a new era.

It has been more than half a year since he came to this era, and Zhu Yuan knows very well that the core that restricts the development of the current era is resources. As small as gunpowder, the formula is not important, the formula is not important, the point is, charcoal is okay to say, but, where do you go to get so much sulfur and nitrate that is enough to turn the army from the age of cold weapons to the age of hot weapons?

Based on the memories that Zhu Yuan brought from later generations, like oil, sulfur and nitrate, the reserves of the two minerals on this land are relatively poor.

Perhaps, in the initial stage of the change of the times, some corresponding small mines, in this regard, look carefully, after all, the land is large enough, you should be able to find some, but if you want to do bigger, to bigger, and in the short term can not achieve industrial means of production under the premise, you can only look for natural and large enough reserves of mineral deposits.

Resources are the problem of everything.

Just like the other two things that Zhu Yuan thought of in the process of diverging, glass and cement.

Glass, a traverser's favorite.

The problem is that most of the traversers don't seem to understand a problem, the key to glass is soda ash, and the demand ratio is quite large, burning one ton of glass requires two hundred kilograms of soda ash.

Where does soda ash come from?

The extraction of potassium carbonate from plant ash is destined to be a small fight, so if you want to burn glass, you must first find alkali ore, which is the key.

And cement.

Traversers also like to burn cement.

Here comes the problem again.

What is most needed for cement firing?

Energy!

Zhu Yuan happened to know a number, and he forgot when he casually pointed out in a newspaper that a coastal province, just cement production, accounted for 11% of the province's energy consumption.

Is it just one percent, too much?

Isn't it much?

Just to produce a cement!

Again, what is the most important thing in cement production?

It's not firing.

It's smashing!

Just crushing all kinds of stones into fine powder, in the entire cement production process, the energy consumed will account for as much as six or seven percent.

Zhu Yuan can boldly give a speculation, just a few hundred years later, 11% of the energy of a developed coastal province is more than the energy consumed by the entire Ming Dynasty in this era to burn wood, coal, charcoal and so on.

Therefore, before breaking through the shackles of the agricultural era, burning cement, considering the consumption of manpower and energy, is far less cost-effective than using glutinous rice milk.

Glutinous rice milk is not bad at all.

If you don't believe it, look at the remnants of the Nanjing city wall hundreds of years later, as well as the long city in the north, the binder is glutinous rice milk, hundreds of thousands of years, wind and rain, still strong.

Inside the study room.

Zhu Yuan's thinking is very divergent, he writes whatever he thinks, and it doesn't matter if it's right or wrong for the time being, anyway, he will definitely have to proofread it later.

Freehand a few girls accompanied as usual.

Seeing that his petty officials are like writing a book from heaven, in the blink of an eye, page after page, in the blink of an eye, what copper sulfate is insoluble in water, what tungsten metal has a melting point of more than 3,000 degrees, and what different metal elements are flame reactions, all of which are incomprehensible.

Or, the text can be understood, but the connection is not understood.

And, it's hard to believe.

In the sound of the wind and rain, after a busy morning, Qingniang came over and said that lunch was ready, and Zhu Yuan, who had finished writing a page of different metal compound solvent colors again, raised his head, and suddenly felt a little dizzy.

Overuse of the brain.

Liubai first noticed that something was wrong, and saw that Zhu Yuan's face was flushed, so he hurriedly came over, and while holding his own petty official, he reached out and tried Zhu Yuan's forehead, which seemed to be a little hot.

I was in a hurry.

carried his petty officials to the bedroom of the east house, took off his clothes and covered the quilt, surrounded by a few girls, and brought lunch.

After eating something, I vaguely heard Liubai ask if he wanted to call Mr. Dai over, but Zhu Yuan refused, so he fell asleep.

Fortunately, I'm just tired.

When I woke up, I felt fine.

The wind and rain continued.

The next day, the women no longer let Zhu Yuan enter the study, always looking for something to do, it just so happened that Zhu Yuan had instructed before, Cui Shen quickly sent a new two-person stone machine over and placed it in the warehouse of the south house.

I am going to do handiwork.

In such weather, it is also a good thing to do handicrafts and have a pastime.

By the way, I also exercised.

There is not much space in the south house.

The main house was also not suitable, so the back room was moved.

Zhu Yuan also realized that it was the first time he had come here.

I've been to the front yard once.

The women who usually live here with canaries are even more surprised and delighted, and one by one they dress up carefully and come to the middle hall on the first floor of the photo room to accompany their petty officials for recreation.

The two-person machine is operated by four people.

Zhu Yuan definitely can't go up and pedal, he doesn't have the strength, and it is impossible to call the little guy outside, even if He Xuan has a few, it is not suitable.

Only the girls can come.

So, the problem comes again, the clothes of this era, just imagine that hundreds of years later, a girl in a gorgeous Hanfu will ride a bicycle...... I didn't dare to think about that picture.

Zhu Yuan has always been good at solving problems.

Very simple.

Let Freehand find some cheesecloth, just right, there is a blue one.

Make jeans.

If the complete jeans are sewn too slowly, then the hot pants, anyway, it is summer, even if it is stormy outside, the temperature is not low, and it is the right time for girls to wear hot pants.

Hot pants came out, and a small t-shirt was served.

Of course, you have to show your navel.

This time I want muslin.

Moreover, the top is fine, but the bottom can't just wear hot pants, and the small bottoms are also sewn a set.

There are a group of people big and small around me, maybe nothing else, and the needle and thread are not said.

The finished product was completed quickly.

Zhu Yuan wanted to let Liubai be the first to try.

Compared with other girls, freehand and blank space are the most suitable, the age is appropriate, and the figure is ...... It is also suitable. After all, what T-shirt hot pants want is a youthful energy, too big, too small and too s, but less charm.

Blank resolutely do not follow.

If it's a night bedroom, it's okay, it's all around here, and I don't plan to wear these weird-looking clothes, and I just pulled the freehand and left together, and I didn't even want to see it.

Too unseemly.

And I also understand that anyway, this yard full of prodigal hooves must be willing in every way.

Of course.

So the first one to try on became Cheng Shanshan, the mountains and mountains are there, and the water is also matched. If it is according to the standards of hundreds of years later, the two girls are still at the age of studying, and they are not bad in dress.

The jewelry on his head was also removed and tied in a ponytail.

Tut!

Once you're dressed, start pedaling.

By the way, I also asked the idle girl to make the complete jeans, and planned to let Luoshui's waist be finely worn, it must look good.

Now that these are out, I simply went to find all kinds of fabrics.

There is ayasa.

Didn't say, make stockings.

Paired with a tight short skirt and a blouse.

Take the time to let the young lady wear it for herself.

In the meantime, he came back again, saw the sketch of the ol suit drawn by Zhu Yuan, took a sip, and ran away again.

Little Nizi, no mood!

It's still the best sack, no matter what the petty officials do, they all look at it with a smile in their eyes, and there is a little expectation in their expressions.

Sack girls love pretty clothes.

If she doesn't think it's beautiful, but her own petty officials think it's beautiful, she will also think it's beautiful. However, somewhat influenced by Sister Liubai, Lin Xiaoyu just watched it, and didn't want to try it on in public, she didn't want to be scolded by Sister Liubai as a prodigal hoof.

When Zhu Yuan saw it, of course he couldn't be left out in the cold.

I quietly ordered them to get the bra out as well.

The girl is invincible at the moment, and she is nothing, just wear a pocket, but since she thinks about it, it is still necessary to protect it in advance.

After getting the clothes, I started cutting crystal brands for a group of girls.

In addition to a double stone machine, two large baskets full of various colored crystals were sent over.

Zhu Yuan personally got his hands on it and cut a few pieces, but he was inspired again.

Perhaps, you can use these crystals as clasps.

In the past, before the advent of double stone machines and grinding wheel slices, crystal was used as buttons, at least, it was not realistic to want mass production.

It's fine right now.

Zhu Yuan has never forgotten to create a 'luxury brand' of this era, but because he is busy with affairs in Mingzhou at the moment, he can't spare his hand, so he can only wait to return to Jinling.

However, many things can also be planned in advance.

Let's just say that crystal buttons, all kinds of colors, all kinds of shapes, just right, and enough material sources, in this era, can be regarded as high-end, can be used as a symbol of their own 'luxury brand' in the future.