"Our first target is Danluo in the southern part of the Kumajin Prefecture, and there are two routes to Danluo. Pen ~ fun ~ Pavilion www.biquge.info one is to go straight down the west coast of the Korean Peninsula, but this road will encounter the Silla sailors is not safe. The second way is to return to Dengzhou, along the Qilu coast to Yancheng, and then cross the Yellow Sea to Danluo State, but the risk of crossing the Yellow Sea is somewhat large. Zhang Qin pointed to the nautical chart and said to Yu Hong and the others.

This map of the southeast and coast of the Tang Dynasty was compiled by Li Yu from memory, the cartographers of the royal palace, and the experienced captain of Jiaolong Sea Navigation.

The area since the Yalu River on the map is marked as the Korean Peninsula, which is also the geographical term officially introduced by Li Yu according to the geographical distinction of later generations, including the southern region of Goguryeo, Silla and the Kumjin Prefecture.

Shusun Kang looked at the map for a long time, this map is the first time I saw it after setting sail today, the map is extremely clear on the Bohai Sea, the Yellow Sea, and the East China Sea on both sides of the country, prefecture and county, even the rivers and mountains entering the sea are drawn, and also gives an approximate width of the three seas and the approximate required mileage between the important ports on both sides of the sea.

It is a pity that in addition to the clear drawing of the west coast of Goguryeo south of Apjugsu on the Korean Peninsula and the accurate town marking, the location of Baekje in Silla and Xiongjin Metropolitan Governorate is only as large as the location of a few large cities, and the coastline looks and feels like a cloud, and as for Danla, the island country south of Baekje, an elliptical thing is drawn there. The area east of the East China Sea is so large that it is marked with the shape of the islands of the Ryukyus and the Wakoku Province. To the south of the South China Sea, the outlines of several large islands have been drawn.

Uncle Sun Kang, who has been in Nanyang for decades, looks at it carefully, and it feels like it.

Wang Haichong pouted and said: "I said Manager Zhang, why do we have to take a long journey, why don't we sail from Duli Town to Chengshan, and then directly cross the Yellow Sea to Danluo?" This line is a straight line distance, how time-saving! ”

"The line from Duli Town to Chengshan is not too far, but it is nothing, from Chengshan to Danluo, this oblique through the vast central area of the Yellow Sea may be a little inappropriate, if there is a strong wind and waves on the sea, let's ......" Zhang Mao said a little stupidly.

"And it's easy to get lost!"

"It's good to put one hundred and eighty hearts, but Poor Dao took the baby to sea, and I promise not to get lost at sea." Wang Haichong proudly escaped from the loose sleeves of his robe, and a disc object the size of two palms was placed on the table.

In addition to Yu Hong, Zhang Qin looked at the disc curiously. I saw that the center of the circle on the top of the disc was arranged in turn, with the eight trigrams, the heavenly stems, the earthly branches, and the twenty-eight sutras, a total of twenty-four directions of scales and inscriptions, and small scales were also marked between each direction, but several of them had never seen this kind of character, and they did not understand what it meant.

If you don't consider that it is a circle, it is no different from Sinan, and Sinan's rectangular disk is also marked with twenty-four directions to indicate the direction.

"This can't be a new type of Sinan, right?" Zhang Qin said with some uncertainty.

"Sinan, this is a compass jointly developed by my master and Li Chunfeng, Ye Fashan, Hu Huichao and His Royal Highness King Yan, which can determine the direction on land and the course at sea."

Wang Haichong looked at the leopard-like eyes and despised everyone present, and arrogantly pointed to the two symbols opposite each other outside the circle in the center of the compass and said: "This symbol reads N, which refers to due north, and the other reads S, which refers to due south, E refers to due east, and W refers to due west." NE is the Southeast ...... These are all symbols that His Royal Highness King Yan came up with whimsically to refer to the eight basic directions. There is also a scale between each direction, these characters are called Arabic numerals, which are the same as our Chinese one, two, three numbers, but this Abibo number is simpler to write. For example, this N to E deviation of 30·, this is called 30 degrees east of north. Compared to the heavenly stems and terrestrial branches, it is clear at a glance. ”

Wang Haichong's fat finger pointed to the center circle of the compass and said: "This is called a compass, which is a small piece of magnetized triangular iron at both ends, one end is painted with blue and pointing to N is pointing north, and the other end is painted red and pointing to S. The function of the spoon on Si Nan is the same as that of indicating the north and south directions, but the magnetic needle on this compass is more accurate than Si Nan's determination of the direction, and it can be used on sea vessels. ”

"Did you see that the small circle in the center of the compass where the magnetic needle is placed is closed, and the transparent lid on it is made of precious colorless glass, which can ensure that when the compass is oriented on the sea, the magnetic needle inside will not be affected by the turbulence and cannot indicate the direction."

Wang Haichong looked at the stunned crowd and patted his chest and promised: "With this compass, driving on the sea thousands of miles wide also guarantees that we will not lose our way!" Do you care about this little Yellow Sea? ”

To be modified:

The corners of his mouth twitched with disdain

Chapter 86

Da A Meal Xiaochuan, Sha Meal Yiwen, Shan Shi, A Meal Nengshen, Du Shan, Yi Ji Meal Annahan, Liangchen Danluo

Li Jinxing Gao Kan Ma Lance Lu River

Mattress, Gao Yanwu Sha Yan Gao Yanwu's generals conspired to set the upper room to become the upper room, Sun Zaixing, the east gate guard, Sun Chengli, and the water

Jianmu Cen An Shun Zaining County Chongpan Cheng Ya

Wang Hu led Xuanwuwei and Su Mingxiu's Tianshi Army to attack Yalu City in the upper reaches of Yalushui, and then transferred to the Dongzha Prefecture Governor's Mansion where the situation was unknown.

Li Shangdan-Xie Qianlu He Baihuwei is now guarding the black bones

Gao Chongde (calm and resolute) - Gao Chongli, Zhang Zicheng (Zhenmai Valley, Xinyue Erzhou) Suzaku guards the states of southern Liaoning

Wang Hu-Xiao Hongguan was originally appointed to guard the four prefectures of Cangyan, Mudi, Xukou and Nansu

Li Yehei-Li Yexu Guan Da Niu Qinglongwei guards the small city of the first line from the city to the black bones, and the other is stationed in Anshi

Cheng Boxian - Phoenix guards Daxing City

Chen Xuan-Kunpeng guards the burning city

Xue Ne-Yanyun Iron Cavalry Left Guard Army followed Li Yu

Zhang Shi-Yanyun Iron Cavalry Right Guard Army followed Li Yu

Yu Chengzhi - Li Laiheng Qilin guards Anshi

Liao soldiers 24,000, 4,000 for the original Liaoning Sanzhou soldiers other new recruitment, organized into 8 armies, each army of 3,000 people, divided into Pingyi, Zhendong, Poyu, Dangdi, Dingman, Tianshi, Flying Tiger, Jiaolong. More than 42,000 people

Gao Kan, the general of the left prison gate, was the head of the march of Dongzhou Road, and Li Jinxing, the general of the right leading army, was the head of the march of Yanshan Road, Si Ping, Taichangbo, Yang Fangsui

Bing Cao joined the army, and Wei Chengqing was fully responsible for recruiting local Han Chinese as soldiers in the prefectures and counties under the direct control of the Metropolitan Protectorate.

Sima Xue Jun went south to the three prefectures of Shicheng, Beisha, and Qingnipu, rectified the soldiers and horses of the three states, and incorporated them into the army system of King Yan.

Ordered Cao to join the army Zhang Renjun went south to Qingnipu, Beisha City, and Duli Town, and presided over the construction of local ports and shipyards. With the order of King Yan, he could directly dispatch slave laborers from Xiu'an City to Qingnipu official road to build ports and shipyards.