The earliest time in Chinese history to mine and use coal was the Western Han Dynasty, so Zhuge Jin, Jian Yong and others did not know what "coal" was.

When coal first came out, it was called "Wujin stone", or "charcoal, ink carbon" and other names, but it did not appear in this era, so Fang Li directly called it "coal".

"It's a black ore that's dug from the ground and ignited by charcoal, which can be scorched and burned with incredible heat." Fang Li made a brief introduction.

During this period, the iron-making technology of various countries was just becoming popular, and most of them were forged with charcoal, which was low in heat and the weapons manufactured were of poor quality.

"I didn't expect there to be such a magical stone in the world? Without further ado, the minister immediately followed the lord to Hedong to look for it. ”

Zhuge Jin didn't say a word after hearing this, and immediately packed up his things and followed Fang Li on a journey to Hedong to find coal.

It is not clear where the coal can be excavated, but it is known that Shanxi is full of coal, so the mining site is set in Hedong, that is, the Yuncheng area of Shanxi before the crossing.

"If you dig coal, you can distinguish the color from the surface of the soil, and then dig it to a depth of five zhang to get coal. When I first saw the coal end, the poisonous gas was scorching. There is a giant bamboo chisel to the middle of the joint, sharp its end, inserted into the charcoal, its poisonous smoke from the bamboo penetration, people from under it Shi Xuan pick-up. Or a well down, the charcoal is wide and horizontal, and it is wide and wide with it. It has a support plate on it to prevent the ear from collapsing. ”

Fang Li used the ancient text to explain the coal digging method recorded by Song Yingxing in "Tiangong Kaiwu", and then turned his head and translated Dian Wei, Yu Ji and others into the vernacular.

"If you want to dig coal, you can tell if there is coal in the ground from the soil quality of the ground, and then dig down to a depth of about five zhang to get coal. When coal seams appear, toxic gases can hurt people.

One way is to chisel through the middle section of the big bamboo tube, sharpen the end of the bamboo tube, insert it into the coal seam, and the poisonous gas will be discharged through the bamboo tube, and people can go down to dig coal with a big hoe. When the coal seam is found to extend in all directions, people can dig through the roadway. The roadway should be supported with wooden planks to prevent collapse and injury to people. ”

Zhuge Jin and Jian Yong almost worshiped Fang Li as a god, but they didn't expect that there was such a magical stone in the world, how did Tang Gong know? is really worthy of being a descendant of Shennong's family.

Two days later, Fang Li and his entourage arrived in the Hedong area, looked for a hillside with dark ground, and demarcated the mining site.

Zhuge Ziyu immediately organized manpower to dig here, digging deeper than ten zhang, and he would definitely be able to see coal. If it doesn't work to dig ten zhang, then dig another ten zhang, if it still doesn't work, then dig in another place. ”

Fang Li paused for a moment and added, "In short, the widow must see coal, this is a sacred secret handed down by Emperor Yan. ”

Zhuge Jin took the order: "The minister respectfully obeys the lord's command!" ”

After completing the purpose of coming to Hedong, Fang Li parted ways with Zhuge Jin, leaving Zhuge Jin and the officials of Hanoi County to deploy coal mining, and he took Yu Ji, Dian Wei and others to the south to return.

When passing through Heyang County, it rained heavily, and Fang Li, who was walking in the wilderness, was drenched in soup, and walked for more than ten miles in the rain to find a village to shelter from the rain.

Although Yu Ji has excellent dancing skills, she is a woman after all, and she has a fever in the evening, lying on the bed and talking nonsense.

Fang Li hurriedly summoned the accompanying medical craftsmen to treat Yu Ji, decocted some herbs and took them, but her condition did not improve, and she was still lying on the bed groggy and confused.

Li Zheng in the village suggested: "There is a new divine doctor surnamed Qin in Yiyang Pavilion twenty miles ahead, who is said to have the ability to cure diseases and even bring the dead back to life. Duke Tang can send someone to invite him to treat his wife's illness. ”

Fang Li was concerned about Yu Ji, and he had already reached the point where he was in a hurry to go to the doctor, so he hurriedly sent Ma Tie to Yiyang Pavilion to ask Doctor Qin to come over and treat Yu Ji.

Ma Pi and his entourage quickly whipped up, and within half an hour they arrived at Yiyang Pavilion, and found the Qin Divine Doctor who was treating the people, and they were about to leave.

"Mrs. Yu was drenched in the rain and infected with the wind and cold, and the Tang Gong sent me to ask the divine doctor to treat Mrs. Yu."

Doctor Qin was in his forties, with a towering forehead, a wide nose and thick ears, and he looked like a fairy.

But he was extremely annoyed by the rudeness of Ma Pi and the others, and said with a cold face: "There are only patients here, and there is no distinction between dignity. Mrs. Yu is a patient, and the poor people are also patients, and let me go to diagnose Mrs. Yu after seeing the people, otherwise I would rather die. ”

"Okay, you barefoot man, it's your creation that the lord of the Tang Dynasty came to invite you to see his wife, and you dare to push back?" Cao Fei, who was traveling with him, was furious, and reached out to pull the placket of Doctor Qin's clothes.

Ma Pi was afraid that he would not be able to substitute for the main bus if he was stiff, so he hurriedly stopped Cao Fei's reckless move, and apologized to Divine Doctor Qin: "Divine Doctor, don't blame, I am also a little reckless because I am also anxious for my wife." Where you offend, you also hope that the divine doctor Haihan. ”

Doctor Qin bowed slightly, looking like an adult who didn't remember the villain's past, and was busy for more than an hour, until he had finished reading all the patients in the room before he set off with Ma Pi.

Half an hour later, Doctor Qin came to the village where Fang Li had settled to check Yu Ji's pulse, instructed Fang Li to retreat, took off Yu Ji's coat, lay on the bed in only a thin shirt, and then used a silver needle to prick a row of acupuncture on Yu Ji's back.

After finishing the acupuncture, Doctor Qin went to fry a bowl of herbs again, and asked Fang Li to feed Yu Ji to drink, and after a while, he woke up and turned around.

"Husband, the concubine is fine, so I'm worried about you." Yu Ji lay on the bed with tears in her eyes.

"As long as Ai Ji wakes up, Doctor Qin said that there is no trouble, so don't worry."

Fang Li comforted Yu Ji a few words, and then got up and thanked Divine Doctor Qin: "Thank you Divine Doctor for rescuing, the widow will be grateful!" ”

Doctor Qin waved his hand and said: "The grass people practice medicine only to save the dead and help the wounded, not for money, Tang Gong only needs to pay me ten copper coins." I also hope that Tang Gong will restrain his subordinates more in the future, treat the people equally, and do not distinguish between the noble and the low. Although the status of the people is low, in the eyes of the doctors, it is human life. ”

Fang Li hurriedly apologized: "If the guards have offended, the widow has made amends here, and I have no way to discipline him." The miracle doctor rejuvenates the magic hand, the medicine is eliminated, and he dares to ask the name of the honorable surname. Where did it come from? ”

Doctor Qin smiled and said: "The name of the grass people is not worth mentioning, the surname is Qin's name and the word Yueren, from Bohai County of Zhao State. With the mission of traveling to various countries to help the world and save people, he passed through this place half a month ago and treated the people. ”

"Qin Xuan? Qin Yue people? ”

Fang Li muttered a few words silently in his heart, and suddenly remembered, isn't this Qin Qian the famous divine doctor Bian Que in history?

I didn't expect to encounter it unexpectedly in this wilderness, but I must not let him slip away from him, and I must bring it back to Xingyang for my use.