While drinking wine and bragging, the old man also talked about some interesting anecdotes about Cochin, which everyone listened to with relish.

"Uncle, do you mean that the ships there are taller than our house?" Sister Yaoguang couldn't help but ask curiously.

"That's natural, it's a Qin-class warship that has just started to build a keel this fall, well, Qin-class refers to a warship with a displacement of five hundred tons or more. In particular, the height of the mast is as high as three of our house. Mowgli, the old man is not mistaken, right? My uncle asked me after a drink.

"What my uncle said is that the Sui class is a ship of less than 100 tons, while the Han class is a ship of more than 200 tons, and the Qin class is a ship of more than 500 tons. In the past, the building ship was about 200 tons at most, so the volume of the Qin-class was indeed much larger. I nodded and replied. Compared with the messy units of measurement such as stones, materials, and catties, this son directly asked them to make a large iron box almost one meter square.

Actually, I really don't know if the one-meter box is really one meter square, but I used a micrometer to determine the width of millimeters, and then extrapolated one meter from centimeters and decimeters.

Then, the iron box with an inner diameter of one meter square is placed on a giant balance scale to be weighed, and the iron ingot is placed at the other end, and after the weight is determined, the large iron box is filled with water, and then new chips are added until the balance is reached.

Then, the weight of those iron ingots added later, is one ton, and then, one ton is equal to one thousand kilograms, which everyone must be clear, in order to be closer to the weighing method of this era, of course, the kilogram is also broken by half, and half a kilogram is a city catty.

In other words, a five-hundred-ton ship is definitely a shocking number when converted into catties. And the battleship that began to build the keel in the early autumn, I remember that it should have been more than 600 tons. Although in my impression, it is far less huge than the 10,000-ton giant ship of later generations, but for people who thought that the largest building of this era would only be a house, such a warship is indeed very shocking.

Hearing such a huge warship, the mother and the relatives were also very surprised, originally thought that the ships sailing in the Yellow River were very huge, but they did not expect that there would be such a huge ship.

And my uncle was in Jiaozhi, but he also went to Hainan Island a few times. It was there a few years ago, when Ben Gongzi's fleet arrived in Jiaozhi, Zhang Luo came over. Although there are no mineral deposits on Hainan Island, it is also a good maritime transit point.

However, because this year, the fleet had to cooperate with Cheng Yanjin to clean up the southern barbarians of the Cham country, so my uncle did not take a boat, but went back directly in a carriage. And this journey took a month

Fortunately, the main body of this cement straight road from Chang'an to Jiaozhi has been fully passed. This cement straight road with a length of more than 3,800 miles passes through Guanzhong, Hanzhong, Bashu and then to Lingnan, and then goes straight to Jiaozhi.

Of course, in some places, ferries are still needed. Nowadays, some of the narrower banks have begun to build strong bridges, but it will take at least several years to get them all right

Thanks to Li Chun, the most famous bridge engineer in ancient China, in the Sui Dynasty, or everyone is not familiar with Li Chun, but I believe that the world-famous Zhaozhou Bridge, built from the Sui Dynasty until more than 1,400 years later, the stone bridge that still stands on the surface of the Jiaohe River in Zhaozhou is his greatest masterpiece.

And this person, Ben Gongzi had already sent someone to look for him when he was eight years old, and finally found the most outstanding bridge engineer of this era.

After that, the reason why the cement straight road of the Chinese Empire was able to be built so quickly was due to his contribution as the chief engineer of the cement straight road of the Chinese Empire. Now, he has brought out more than a hundred disciples, if it weren't for the fact that now, the land of Bashu needs to build several bridges that are extremely difficult and span and still need him to sit in town, this son has long wanted to transfer him back to Chang'an and let him serve as the dean of the construction college of the Royal Academy

And Li Chun, who is now a member of the Royal Society of Science, is full of fighting spirit, and perhaps, my respect for the craftsmen and the respect for them as builders makes him inexhaustible. Moreover, he happened to have studied in a private school for a few years. Have a good language organization ability to organize their own ideas and designs.

Among the more than 100 disciples who have been taught, more than 20 of them are currently continuing to repair and sort out the oral accounts about the construction of roads and bridges that Li Chun told about them, and in addition, a lot of physical knowledge that is already known now needs to be embedded into it.

In this way, the future students can not only know what it is, but also know why it is, so that the future Chinese builders can stand higher and see farther on the shoulders of Li Chun, a master of bridge construction.

When I met Li Chun at the beginning of this year, I personally told the 45-year-old top bridge engineer of the Great Sui Dynasty that he would be given two years at most, and after that, he would have to teach at the school for four years before he could go out again.

Of course, when he goes out of the mountain again, it will naturally not be himself and those students who have become monks halfway, but excellent graduates who can go through four years of hard study and absorb enough knowledge and nutrients from him.

As for his more than 100 disciples, they will also go to the academy for further study, contributing to the road transportation and bridge construction of the future Chinese Empire.

"Your Majesty, this year's grain production has increased by nearly 10% compared with last year, but in order to cope with the conquest in the next few years, I am afraid that the amount of grain we have to hoard will not be lower than last year." Fang Xuanling appeared in front of me again after the autumn harvest.

"That's fine, but we can't afford famine in our newly occupied land." I nodded, looked at the list handed over by Fang Xuanling, and said as I looked at it.

"Your Majesty, rest assured, in the Lingnan area, the rain and weather are good this year, there are no major disasters, and there is no problem with food, but in the coastal areas of Lingnan, there are many places that have been harmed by wind and rain......"

"Wind and rain, oh, you mean typhoons, right?" I thought about it for a moment and patted my head and asked.

"Typhoon?" Fang Xuanya looked at me with a confused expression, and it seemed that he didn't know what a typhoon was.

Typhoons, also known as hurricanes. It is a tropical cyclone that forms over a wide area of the ocean with a tropical or subtropical sea surface temperature of 2°C or more. Meteorologically, as defined by the World Meteorological Organization, the centre of a tropical cyclone has sustained winds of magnitude 12 to 13 per second3. 7 m to 4 [4 m] is called a typhoon or hurricane, and the name of the hurricane is used in the North Atlantic and Eastern Pacific;

The synonym used in the western North Pacific Ocean (north of the equator, west of the international date line, east of 100 degrees east longitude) is typhoon, and in the summer and autumn of each year, many violent storms called typhoons will be generated in the northwest Pacific Ocean adjacent to China, some of which will dissipate in the ocean, and some will land on land, bringing violent storms and rain.

"It's the kind of huge storm that comes from the sea, can cover the sky and the sun, bring violent storms and can destroy houses and uproot trees, and I decided to name this kind of disaster a typhoon." I thought about it for a while, and decided to use the emperor's will to make a direct decision, so as not to hear some strange adjectives and nouns all the time.

In this era, in addition to recording weather phenomena such as sunny, cloudy, rainy, and snowy, there was also a measurement of the magnitude of the wind. Although we did not yet have an accurate instrument for determining the speed of the wind, it was possible to calculate the speed of the wind and determine the wind force scale based on the symptoms of the wind on the object.

Well, this is Li Chunfeng's thing. Just last year, there was such a record in Li Chunfeng's "Phenomenon Playing and Occupying": "Ten miles of moving leaves, 100 miles of sounding strips, 200 miles of shaking branches, 300 miles of fallen leaves, 400 miles of small branches, 500 miles of big branches, 10,000 miles of stones, and 3,000 miles of pulling out big roots." This is to estimate the speed of the wind according to the effect of the wind on the tree, "moving leaves ten miles" means that the leaves flutter slightly, and the speed of the wind is ten miles a day; "Naruto" is the rustling of leaves, and the wind speed at this time is 100 miles a day.

In addition, some wind levels are also determined according to the characteristics of the tree, as stated in the "B has occupied", "the first level of moving leaves, the second level of song, the third level of rocking branches, the fourth level of falling leaves, the fifth level of folding small branches, the sixth level of folding large branches, the seventh level of folding wood, flying sand stones, and the eighth level of pulling out large trees and roots". These eight levels of wind, plus "no wind" and "Japanese wind" (when the wind comes, cool, mild, dusty, called Japanese wind) two levels, can be combined into ten levels.

According to the wind rating released by Li Chunfeng, a typhoon is naturally a wind of 10 or above. Although only ten levels were set, it was enough in this era of lack of tachymeter anemometers.

"Yes, in accordance with Your Majesty's will. The typhoons often hit the coastal areas of Lingnan and Jiangnan, and the sharpness of those typhoons was terrifying, often blowing down not only trees, but also houses and ships...... Year after year, there will be a lot of losses. This year, after we occupied Lingnan, we have mobilized 570,000 stone of rice from Jiaozhi to rescue the disaster areas due to the disaster. Fang Xuanling's words made me nod with satisfaction.

"Yes, but it's not enough, if you don't say that I've forgotten it, so let's do it, in the future, our emergency response mechanism should be more vigorously promoted. It's not enough to give food to the people. It is also necessary to help people build their destroyed homes. ”

"Your Majesty, the minister thinks that we can vigorously build cement masonry houses along the coastal area of Lingnan." Du Ruhui next to him moved in his heart and reported to me. "The houses built with cement masonry are extremely strong, and unlike wooden houses, they have to be repaired every ten years, and they have to be protected from insects and ants, and they are waterproof and foggy."

"Du Shangshu is reasonable, the minister thinks that the houses built of masonry and cement are strong, and the guns are difficult to fall, not to mention the invasion of wind and rain?" Ma Zhou couldn't help but praise Du Ruhui's idea.