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Volume One Chapter 697 The Builders of Zhaozhou Bridge

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    While drinking wine and bragging, the old uncle also talked about some interesting anecdotes about Jiaozhi with great interest, which everyone listened with relish.  "Uncle, are you saying that the boats there are higher than our house?" Yaoguang girl couldn't help but asked curiously.  "That's natural. It's a Qin-class warship that just started building its keel this autumn. Well, the Qin-class refers to a warship with a displacement of five hundred tons or more. Especially the height of the mast, I'm afraid it can have  Our house is as tall as three. Wuji, I remember correctly," the old uncle asked me after having a drink.  "What my uncle said is true. The Sui class is a ship of less than 100 tons, while the Han class is a ship of more than 200 tons. As for the Qin class, it is a ship of more than 500 tons. In the past, the maximum building ships were only 200 tons.  About, so the Qin level is indeed much larger." I nodded and replied.  Compared with the messy units of measurement such as stones, materials, and kilograms, I directly asked them to make a large iron box that was almost one meter square.  Actually, I really don¡¯t know if the one-meter box is really one meter square. It¡¯s just one meter that was deduced from centimeters and decimeters after first determining the width in millimeters with a micrometer.  Then, first place the iron box with an inner diameter of one meter square on a giant balance scale to weigh it, and place the iron ingots on the other end. After determining the weight, fill the big iron box with water, and then add  New chips are added until both sides reach equilibrium.  Then, the weight of the iron ingots added later is one ton, and then, one ton is equal to one thousand kilograms. I think everyone must know this. In order to be closer to the weighing method of this era, of course, the kilograms are also divided into half  , half a kilogram is one pound.  In other words, when converted into kilograms, a five-hundred-ton ship is definitely a shocking number.  And I remember that the keel of the warship that started to be built in early autumn should be more than 600 tons.  Although in my impression, it is far from as huge as the 10,000-ton giant ships of later generations, but people who thought that the largest building in this era would only be a house are saying that such a battleship is indeed very shocking.  Hearing about such a huge warship, my mother and the others were also very surprised. They originally thought that the ships sailing in the Yellow River were huge, but they did not expect that there would be such huge ships.  "While my uncle was in Jiaozhi, he also made several trips to Hainan Island by boat.  It had been set up there a few years ago when my master's fleet arrived in Jiaozhi.  Although there are no mineral deposits on Hainan Island, it is also a pretty good maritime transfer station.  However, because this year, the fleet had to cooperate with Cheng Yaojin to deal with the Southern Barbarians in the Champa Kingdom, so my uncle did not take the boat, but went back directly in the carriage.  It only took a month to walk this way. Fortunately, the main body of the cement straight road from Chang'an to Jiaozhi is fully accessible.  This straight cement road, which is more than 3,800 miles long, passes through Guanzhong, Hanzhong, Bashu and then to Lingnan, and then goes straight to Jiaozhi.  Of course, some places still need ferries.  Nowadays, strong bridges have begun to be built on some relatively narrow river banks, but it will take at least several years to build all the bridges. Thank you Li Chun, thank you for this ancient Chinese, the most famous in the Sui Dynasty.  Li Chun is a bridge engineer, or you may not be familiar with Li Chun, but I believe that the world-famous Zhaozhou Bridge, a stone bridge built in the Sui Dynasty and still standing on the Jiao River in Zhaozhou more than 1,400 years later, was him.  The greatest masterpiece.  "As for this person, my master had already sent people to look for him in the eighth year of Daye. Finally, he found this most outstanding bridge engineer of this era.  After that, as the chief engineer of the Huaxia Empire's cement straight road, he was indispensable for the reason why the Huaxia Empire's cement straight road could be built so quickly.  Now, he has brought out more than a hundred disciples. If it weren't for the fact that the land of Bashu needs to build several extremely difficult and long-span bridges and he needs to be in charge, I would have wanted to transfer him.  Returning to Chang'an, he was asked to serve as the dean of the School of Construction of the Royal Academy. Li Chun, who is now a member of the Royal Scientific Society, is full of fighting spirit. Perhaps, my respect for the craftsmen and my respect for them, the builders,  Let him have endless energy.  Moreover, he happened to have studied in a private school for several years.  Have good language organization ability to organize your own ideas and designs.  Among the more than 100 disciples who have been taught, more than 20 of them are currently in the Royal Academy continuing to repair and organize the oral narratives about road and bridge construction that Li Chun told. In addition, many more need to be compiled, and now they have  The physical knowledge you know must also be embedded in it.  In this way, future students can not only know what is happening, but also know why. In this way, future Chinese builders can stand higher on the shoulders of Li Chun, the master of bridge construction, and see  further.  I said it myself when I met with Li Chun at the beginning of this yearHe told the forty-five-year-old top bridge engineer of the Sui Dynasty that he would be given two more years at most. After two years, he would have to teach in a school for four years before he could leave the mountain again.  Of course, when he comes out again, it will no longer be him and those students who became monks halfway, but outstanding graduates who can go through four years of hard study and absorb enough knowledge and nutrients from him.  As for his more than one hundred disciples, they all have to go to the academy for further studies and contribute to the future road transportation and bridge construction of the Chinese Empire.  "Your Majesty, our grain output this year has increased by nearly 10% compared to last year. However, in order to cope with the war in the next few years, I am afraid that the grain we need to stock up will not be lower than last year." Fang Xuanling finished the autumn harvest.  Then he appeared in front of me again.  "That's okay, but we must not have a famine in our newly occupied land." I nodded and said as I looked at the list handed over by Fang Xuanling.  "Don't worry, your majesty. The rain and weather this year are good in the Lingnan area. There are no major disasters and there is no food problem. However, many places along the coast of Lingnan have been damaged by wind and rain" "Damage by wind and rain, oh.  You mean typhoon, right?" I asked after thinking about it and patting my forehead.  "Typhoon?" Fang Xuanzhi looked at me with a confused look on his face. It seemed that he didn't know what a typhoon was.  Typhoon, also known as hurricane.  It is a tropical cyclone that forms on the vast sea surface in the tropics or subtropics with a sea surface temperature above 2¡ãC.  In meteorology, according to the definition of the World Meteorological Organization: a tropical cyclone center with a sustained wind speed of 3.7 meters to 4 [4 meters per second] between Category 12 and Category 13 is called a typhoon or hurricane. The name hurricane is used in the North Atlantic. and the eastern Pacific; The synonym used in the western North Pacific (north of the equator, west of the International Date Line, and east of 100 degrees east longitude) is typhoon. In the summer and autumn of each year, many named typhoons occur in the northwest Pacific adjacent to my country. Some of the violent storms of typhoons dissipate over the ocean, while others land on land, bringing violent storms and rain.  "It's the kind of huge storm that floats from the sea, can block out the sky, bring violent storms, and can destroy houses and uproot trees. I decided to name this kind of disaster a typhoon." I thought about it and decided.  Use the emperor's will to decide directly, so as not to hear some weird adjectives and nouns all the time.  In this era, in addition to recording weather phenomena such as sunshine, rain, snow, etc., there was also the measurement of wind strength.  Although precise instruments for measuring wind speed have not yet been invented in our era, at that time we could already calculate the speed of wind movement and set wind power levels based on the characteristics of the wind hitting objects.  ¡°Well, this matter was caused by Li Chunfeng.  Just last year, Li Chunfeng's "Phenomena Wanzhan" recorded this: "The leaves are moving for ten miles, the branches are singing for a hundred miles, the branches are shaking for two hundred miles, the leaves are falling for three hundred miles, the small branches are broken for four hundred miles, and the large branches are broken for five hundred miles.  "To walk a thousand miles, to pull out a big root is three thousand miles." This is to estimate the speed of the wind based on the effect of the wind on the tree. "Moving leaves ten miles" means that the leaves are slightly fluttering, and the speed of the wind is ten miles a day; "Mingtiao"  The leaves are rustling, and the wind speed is hundreds of miles a day.  In addition, some wind levels are also determined based on the symptoms of the tree, such as "Yi Ji Zhan" said, "The first level is moving leaves, the second level is singing, the third level is shaking branches, the fourth level is falling leaves, and the fifth level is breaking twigs."  "The sixth level is to break big branches, the seventh level is to break wood and fly sand and rocks, and the eighth level is to pull out big trees and their roots."  These eight levels of wind, plus the two levels of "no wind" and "gentle wind" (when the wind comes, are cool, gentle, and dust-free, it is called gentle wind), can be combined into ten levels.  According to the wind rating released by Li Chunfeng, typhoons are naturally winds above level 10.  Although only level ten is set, it is enough in this era of lack of speedometers and wind detectors.  "Yes, I am following His Majesty's will. Typhoons often hit the coastal areas of Lingnan and Jiangnan. The sharpness of those typhoons is shocking. Not only do they often knock down trees, but they also knock down houses and capsize ships year after year.  , will cause a lot of losses. This year, after we occupied Lingnan, we have mobilized 570,000 stones of rice from Jiaozhi to rescue the disaster areas." Fang Xuanling's words made me nod with satisfaction.  "Yes, but it's not enough. If you don't tell me, I would have forgotten. Well, in the future, our emergency disaster relief mechanism should be promoted more vigorously. It's not enough to just provide food to the people. It's not enough.  We need to help the people build their destroyed homes. " "Your Majesty, I think we can vigorously build cement masonry houses along the coast of Lingnan." Du Ruhui, who was next to him, reported to me.  "Houses built with cement masonry are extremely strong, and unlike wooden houses, they need to be repaired every ten years. They must also be protected from insects and ants, and waterproofed by fog and decay." "What Du Shangshu said is reasonable, I think.  The house made of masonry and cement is so strong that it is difficult for cannons to move down, let alone the intrusion of wind and rain?" Ma Zhou couldn't help but praise Du Ruhui's idea loudly.
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