What is Steel? Steel is nothing more than coal and iron ore, as well as labor and smelting losses. The converter steelmaking was not completed because the sulfur and phosphorus content of iron ore was too high, but Xiong Jing believed that there would be a successful day. If you really can't do it, you will go to Hainan to dig Shilu iron ore or Tiandu iron ore, and the iron ore of these two mines will definitely meet the requirements of converter steelmaking.

In the past, the steel price was calculated on the basis of 11 yuan per catty, but if the accounting started from the raw materials, the steel price was not as high as imagined. At least, the price of converter steel is very low, so low that it does not cost half a penny. If a pound of converter steel does not cost half a catty, how much does a pound of crucible steel cost?

It's an exciting question to think about! It's a pity that Ou Chou was captured by the Marquis of Qin. Ou Chou's value is not in crucible steelmaking, his value is in quenching. In the era when there was no high-temperature thermometer, quenching could only rely on the experience of the swordsmith, and Ou Chou happened to find the right temperature and the right way to quench, which led to the sharpness of the cavalry knife and the tenacity of the iron armor. Without him, other craftsmen could only slowly explore trial and error, gradually accumulating experience in how much carbon was added and what color to quench, which would waste countless time and money.

Therefore, Xiong Jing has ordered the Mansion and the Jade Mansion to try to make a high-temperature thermometer. Thermocoupled, the principle is that if two different sections of metal are welded together to form a closed circuit, one end is placed on a high-temperature object, and the other end keeps the temperature unchanged, and a current will be generated in the closed circuit, and the connected ammeter pointer will rotate.

Although the knowledge that has not been used for a long time is rusty, the principle is still remembered. A closed circuit and an ammeter are not high-end things, a closed circuit is just two connected sections of metal plus an ammeter, and what the Germans could do in 1821 can do now. The difficulty lies in the fact that there is a magnetic coil inside the ammeter, which needs to be wound with metal wire, and the metal wire must be kept insulated; Secondly, the ammeter pointer (small magnetic needle) must be very sensitive in order to deflect when a weak current flows through the magnetic coil to generate a magnetic field;

Except for an ammeter whose principle can be understood by a high school student, the real difficulty lies in the metal itself. Different metal combinations can measure the temperature of different stages, the iron-constantine combination can measure the high temperature of about 2 to 300 degrees, the quenching temperature of steel is more than 700 degrees, and the metal combination that measures the temperature of this stage in later generations is platinum-platinum alloy, or nickel-chromium-nickel-aluminum.

The melting point of nickel is lower than that of iron, and the melting point of platinum is more than 200 degrees of iron, but this is also what coke can achieve. Where can I find these metals? How do you smelt if you find it? These are all things that are outside the scope of Xiongjing's knowledge.

Xiong Jing estimated that iron wire, copper wire, and silver wire were temporarily pulled out, but gold with good ductility could still be pulled out. The gold wire is pulled out and impregnated with lacquer, each lacquer is dipped in, there is always a kind of bakelite that can be insulated is the 20th century, and it is not known what the coil is insulated in the 19th century, but there is always something insulating. Besides, this is not a generator, the coil is simple and does not need to be rotated, there is no wear, just a stationary magnetic field. As for the sensitivity of the magnetic needle, Xiong Jing believed that the jade worker who could carve the four crooked characters 'Liqiang is the king' in the jade with a hole would definitely be able to solve it, and if he couldn't solve it, he would cut off his head.

Metal, the key is still metal. Where to go find nickel-platinum-chromium......

In the snowy Chengyang, because of the disappearance of Ou Chou, Xiong Jing actually thought about circuits, currents, and electromagnetic fields in ancient times; And on a Qinghan boat in the chasm, Ou Chou, a great engineer who had been imprisoned for a long time, was finally invited out of the bottom warehouse, and he saw two people, one was dressed as a nobleman, and the other was his disciple, Carp.

"Servant! Beast! Ou Chou's eyes were like a sword, and he glared fiercely, he really didn't have any more vicious words.

"Mr. Ou Chou is not angry." The noble man looked at Ou Chou with a smile. "Mr. can smelt iron and cast a sword for the king of Chu, or he can smelt iron and cast a sword for the king of Qin. In the eyes of the King of Chu, you are just a servant's ear, with no food, no residence, and no beauty; If you can forge a sword for the king of Qin, you will be enjoyed by the princes. ”

"False!" Ou Chou Yayan is not standard, with a strong Vietnamese accent. "His Royal Highness the eldest son is the teacher of Ou Chou, and Ou Chou knows it, and it is all granted by His Highness. Ugly is not a beast, how can he exchange the title of King Qin for wealth and dignity granted by His Royal Highness? You let me go back quickly. ”

"Granted by His Highness?" The noble man smiled and said, "How old is Your Highness?" Mr. Ou Chou should not think about Yingdu anymore, this is already the Wei State. ”

"Wei State?" Qinghanzhou swayed, Ou Chou only thought that he was still in the Chu State, but he didn't expect that he had already arrived in the Wei State.

"It's the State of Wei." The nobleman was very satisfied with Ou Chou's reaction. "My person Zhao Zhang, Mr. Ou Chou can call me Zizhang. I waited for a few days in Daliang, and then returned to Qin to go to Xianyang. If there is no accident in the gentleman's family, he will also wait for Mr. in Xianyang for a long time. ”

"Family?!" Ou Chou wanted to rush to the crown, "People say that Qin people are profitable, regardless of relatives and brothers, like birds and beasts." I, Ou, cast a sword for the king of Yue, forged a sword for the king of Wu, and forged a sword for the king of Chu, how can I cast a sword for the beasts! ”

"Teacher! It's not good to ......" As a disciple, Ou Chou knows Ou Chou's temperament best, and Ou Chou feels bad when he gets angry. Sure enough, Ou Chou slammed into the side of the boat after scolding, and with a bang, even the window and the wall, and the sawdust flew sideways, and he had flown out of the warehouse and fell into the swinging ditch.

"Help!" Zhao Zhang immediately panicked, and when he handed over the person, he explained: Ou Chou died and he died, and now that Ou Chou has jumped the chasm, how can he not be in a hurry. But when he ran to the side of the boat, there was no Ou ugly figure in the vast ditch water. The north blew again, and his heart instantly cooled.

"Over there!" The carp pointed to the other side of the Qinghan boat, where a man was half-sinking and half-floating. The water of the chasm flowed from north to south, and the boat went north, and as soon as the diving Ou Chou fell into the water, he was washed south by the ditch water.

"Help!" Zhao Zhang's heart is still hanging. It snowed heavily, the ditch water was extremely cold, and people who were saved late would definitely freeze to death.

"Someone falls into the water, save people and save people." On the southbound painting boat with a hanging festival, some people also saw Ou Chou falling into the water. Ou Chou is a master engineer, Zhao Zhang is a fox fur worship, this fox Qiu makes the boat people think that Ou Chou is a nobleman, and immediately shouted. Soon, the man with the miraculous trick jumped into the ditch and scooped up the ugly Ou who was frozen and purple.

"Dare to ask, but the envoy of Zhao State?" After a while, Qing Hanzhou caught up with the painting boat, saw the festival on the painting boat, and then saw the clothes of everyone on the painting boat, Zhao Zhang asked hard.

"Who are you?" The person who looked like a small official also looked at Zhao Zhang.

"Oh." Zhao Zhang hurriedly changed to a Handan accent, "I am Zhao Zhang, a Zhao person, my friend accidentally fell into the water, and when I saw that he was rescued by your envoy, I came to thank you." ”

"The man who fell into the water is your friend?" The little official naturally knew the Handan accent, but he was still looking at Zhao Zhang. After looking at it, he said in an arrogant tone: "Fortunately, this is the Wei State, if you are in the Zhao State, you have already been shown to the public." Get lost! ”

"This is ......" Zhao Zhang's heart was shocked, it seemed that Ou Chou had informed Zhao Envoy of the matter. He wanted to argue again, but several fierce warriors dressed in black walked to the side of the boat and stared at him, this is the black-clothed palace guard of Zhao Kingdom.

"Sir is frightened." Like a dream, Ou Chou was on the Qin boat before diving, but he was rescued from the water on the Zhao boat. The person in front of Ou Chou introduced himself: "I am Wei Jia, the envoy of Zhao State, and I am about to go to Yingdu to meet the feet of the King of Chu. Huge sword and huge armor, Mr. Ou Chou's name has spread all over Handan, I didn't expect to see it like this, and the sky is lucky! ”

I changed my clothes and drank a bowl of hot soup. Ou Chou finally felt better, he never thought that his reputation had spread to Zhao Guo, but when he heard Hui Yingdu, he was immediately stunned, "It's good to return to Yingdu, it's good to return to Yingdu." ”

"The sword forged by Mr. is a powerful Qin person. It is rumored all over the world that the victory of the Chu army in this battle is the victory of the sword. Mr. Talent, please accept Wei Jia's bow. "Wei Jia can be an envoy, naturally eloquent is extraordinary, and a few words have narrowed the distance between himself and Ou Chou.

"Our army has won? The king won? Ou Chou said happily. He was imprisoned for more than a month, and he had no idea what was happening in the outside world.

"Naturally, it was a great victory for the Chu army." Wei Jia smiled, "I heard that the new king was in front of the battle to destroy the whole army, and then lined up in front of the battle, and the morale of the Chu army was immediately greatly boosted, so he defeated the crowd with a small number of people and broke through the 300,000 Qin army. ”

"The new king? The new king? The king is gone? Ou Chou looked at Wei Jia, not knowing who was the new king of Chu.

"Yes, yes." Wei Jia was melancholy, and he was even more melancholy that Yin Chun Shenjun was also dead. "The eldest son of your country said: The father died and the son should succeed, so he led an army of 270,000 to fight with the Qin army, and broke it in the north of Qingshui, and the world knows its heroic martial arts."

"His Royal Highness the eldest son is the new king." There is too much information, and the European scandal seems a little wooden.

"Exactly. This envoy is about to meet the new king. After Mr. rescued him, he said that he was a vassal of the eldest son of Chu, and now he is a vassal of the new king. Wei Jia gave Ou Chou another blow, and this time Ou Chou immediately got up and saluted back.

"Dare to ask sir, why was he tied up by the Qin people?" Wei Jia personally poured a handful of hot wine for Ou Chou and asked curiously.

"I don't know." Ou Chou, who pulled back to reality, smiled bitterly. "That night, someone broke into the mansion, killed more than a dozen palace guards and tied me out of Ying, but I hated that Yingdu didn't check the car late at night, so he let me wait out of the city."

"The Qin people are greedy and profiteous, and they don't know etiquette, righteousness and virtue, so they must have heard that Mr. can cast a sword, and Fang tied Mr. into Qin." Wei Jia was indignant. "The things of iron can only be smelted in the world, and I didn't think that Mr. could also smelt. The envoy of Chu is seeking to meet Mr. Guo Zong. ”

While Wei Jia was talking, Guo Zong, who had been waiting outside the door for a long time, finally came in. He smacked Ou Chou heavily and said, "Guo Zong has seen Mr. ”

When Ou Chou returned the salute, he suddenly saw Guo Zong holding an unsheathed cavalry knife in his hand, Wei Jia said: "This knife went out of the Qin Army Military Market, and then circulated in the Wei capital Liang, and we bought it for thousands of dollars." ”

In that day's battle, not only one cavalry sword was captured by the Qin soldiers, but the total number would not exceed ten. After the knife was sold in the military market, it was quickly transferred to Daliang, and the local giant Bai Yi bought it for 500 gold, and Guo Zong bought it for 100 gold.

"This knife is not worth a thousand dollars." Holding the familiar cavalry knife, Ou Chou's face finally had some joy.

"This knife is nearly five feet long, cutting gold and jade. Mr. thought it was not worth a thousand dollars, and dared to ask what was the value? "Guo Zong is a giant iron businessman of Zhao Guoye, and he is rich with the king. He came to Chu State to be a huge sword, and he was overjoyed to see Ou Chou.

"This knife is only worth a thousand dollars." Jutiefu is calculated separately, and the cost of the cavalry knife is geometric, and Ou Chou knows it.