The principle and structure of DC generators are very simple. Roland had disassembled more than a dozen four-wheel-drive car motors when he was a child, from ordinary white-board motors to the legendary Gold Super Power, and even wound the rotor copper wire himself. These motors are typical DC motors.
There is no structural difference between DC generators and DC motors. In essence, they are the same thing and can be used interchangeably. As long as other machines drive the motor rotor to rotate, allowing the wires to continuously cut magnetic lines, induced current can be generated continuously.
With the help of Meya and Anna, Roland spent only half a day assembling a simple DC motor. The stator part was all made of wood, and then Meya gave it magnetism. The commutator at the end of the rotor was embedded in a section of round wood, with a hole in the center of the wood to connect to the steam engine shaft. This structure is easy to manufacture and ensures insulation between the commutator segments.
As for the new steam engine, it became a performance by Anna, watched by him and Meya, showcasing her superb processing skills. When large parts needed to be made, she would have the Blackfire open, wrapping a pile of iron ingots inside like a cloth, melting them, and then contracting the Blackfire to press them into plates that met the size requirements, and finally cutting them into shape.
The next day, when Roland was preparing to go to the backyard of the burning room to test the generator's effectiveness, a guard brought him a piece of very exciting news: the chief alchemist from the Alchemy Workshop in Chishui City had arrived at Border Town, and he was accompanied by more than just one person.
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Kaimo. Swirel acted very decisively. That afternoon, he took his family and more than a dozen disciples on a merchant ship bound for Border Town. Unfortunately, Charmis hesitated again and again before declining his invitation.
He did not disclose the contents of this letter to other alchemists. The more people who knew, the later the departure time would be. Kaimo was worried that the news of the successful firing of crystal glass would soon reach the Duke's ears, and then it would not be so easy to leave—for this kind of high-profit luxury product, the Duke would definitely want to hold it firmly in his hands.
He had already written the glass formula and firing method on parchment and stored it in the formula cabinet of the refining room, which was also a return for the Duke's investment in building the alchemy workshop. However, in the face of the truth of alchemy, neither crystal glass nor the alchemy workshop was worth mentioning.
Five days later, Kaimo finally met the owner who wrote the letter—the lord of Border Town, Roland. Wimbledon.
Inside the castle's reception room, he had just finished saluting, and before his butt was firmly on the seat, he couldn't wait to open his mouth and said, "Your Highness, I would like to talk to your alchemist."
"My alchemist?" The other party smiled. "Before you came, Border Town didn't have an alchemist. But now, you are my alchemist."
"You mean... those alchemy formulas, you wrote them yourself?" Kaimo directly ignored the second half of his sentence, his face turned pale. He suddenly thought of another possibility, the other party was a prince, and all the knowledge he received came from the teachings of the court tutors. If he could know these, wouldn't it mean that the Royal Capital Alchemist Association had already mastered the essence of alchemical changes? And he was still delusional about surpassing them, it was simply ridiculous to say it out loud.
"Not entirely," Roland said. "These formulas come from ancient books from more than four hundred years ago. I only discovered them by chance. It seems that hundreds of years ago, they called alchemy chemistry."
"Che...mistry?" Kaimo felt much better when he heard that the formulas did not come from the Royal Capital Alchemist Association, but the prince's answer still surprised him. Alchemy books from more than four hundred years ago? The Royal Capital Alchemist Association has only been around for less than two hundred years, could it be that later generations are not as good as their predecessors?
"That's right, in the book, those scholars mentioned a hypothesis, which is the law of conservation of matter. The matter that makes up everything in the world will not disappear or increase, they only change from one form to another, for example, this pastry," Roland pointed to the cake on the long table, "After you eat it, part of it is absorbed by you, and part of it is excreted. If you add the absorbed part and the excreted part, their mass should be equal."
"Wait... Your Highness," Kaimo pondered, "If I burn a piece of wood into powder, no matter how I weigh it, the weight of the powder after burning is lighter than the wood. If matter is not destroyed, where did the missing part of the matter go?"
"These are also explained in the book," Roland said with a smile, "They turned into gas and water. And the water is evaporated by the heat of the flame, so in the end you can only see the remaining residue."
"Gas?" Kaimo felt something was about to come out of his heart. "Does air also have weight?"
"Of course, all matter has mass." The prince nodded. "It's also easy to verify this point. Fill a bottle with a pile of wood chips, cover the mouth of the bottle, and place it on a scale. After it is balanced, ignite the wood chips. In the end, you will find that the weight of the bottle will not change. Because the gas released by the combustion cannot escape and remains in the bottle."
"Is this... also written in the ancient book?" Kaimo asked eagerly, "Can I see that book?"
"If you can agree to a few conditions," Roland spread his hands.
"Please tell me."
"First of all, you have to work for me, with a salary calculated according to your remuneration at the Alchemy Workshop in Chishui City. Second, once you accept this job, you must abide by the confidentiality regulations. That is to say, you must not disclose the content of your work to other alchemists. Third, if you agree, we will sign a contract. This contract is for a period of five years. After five years, you can choose to stay or leave freely, and the alchemical results will no longer be subject to confidentiality regulations, and can be shown to other alchemists or alchemical guilds. Correspondingly, if you accept these three conditions, Border Town will provide housing and a chemistry laboratory. At the same time, I will also lend you the book
These don't sound like harsh conditions, Kaimo thought. Although words such as confidentiality regulations and chemistry laboratory are really awkward, he can still understand the general meaning. A five-year contract is not too long. He originally thought that the lord would ask him to stay in Border Town forever.
And... even if the conditions were harsher, he would want to see with his own eyes that book that records the essence of alchemy.
Thinking of this, Kaimo got up and bent down slightly: "I am willing to work for you, Your Highness."
"Very good, then it's settled," the prince didn't seem to care much about etiquette. "Your workplace is by the Chishui River. After signing the contract, I will take you to familiarize yourself with the laboratory and introduce the uses and operating procedures of those glassware."
What made the chief alchemist feel a little strange was why Prince Roland was so proficient when talking about alchemy, and even gave people a sense of confidence? He is just an ordinary nobleman who accidentally came into contact with ancient alchemy books? But these are minor details, he suppressed his doubts and asked, "I don't know what Your Highness needs me to refine?"
"High concentrations of acid, the more the better." The prince replied.(。)(.)