The principle and structure of the DC generator are very simple. Roland disassembled more than ten four-wheel drive motors when he was a child, from ordinary whiteboard motors to the legendary Gold Speedmaster, and wound the rotor copper wire by himself. These motors are all typical DC motors.
There is no structural difference between a DC generator and a DC motor. In essence, they are the same thing with interchangeable functions. As long as other machines drive the rotor of the motor to rotate, and the wires continuously cut the magnetic field lines, the induced current will be continuously generated.
With the help of Mystery Moon and Anna, it only took Roland half a day to assemble a simple DC motor. The stator part was all made of wood, and then it was given to Mystery Moon to give it magnetism. The commutating piece at the end of the rotor is embedded in a log, and a hole is left in the center of the log, which can be connected to the shaft of the steam engine. Such a structure not only facilitates manufacture, but also ensures that the commutator segments are insulated from each other.
As for the new steam engine, it became him and Mystery Moon watching Anna perform marvelous processing skills. When she needed to make large parts, she opened the black fire, wrapped a pile of iron ingots like a cloth, melted it, then shrunk the black fire, pressed it into a sheet that meets the size requirements, and finally cut it into shape.
Just the next day, when Roland was about to go to the backyard of the calcining room to test the effect of the generator, the guards brought him a piece of good news that made him extremely happy. The chief alchemist from the Alchemy Workshop of Chishui City had arrived in Border Town and came with him. of more than one person.
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Kemo Stryer walked very decisively. In the afternoon, he took his family and more than a dozen disciples to board the merchant ship to Border Town. Regrettably, Chalmers declined his invitation after hesitation.
He did not disclose the contents of this letter to other alchemists. The more people he knew, the later the departure time would be. Kaimo was worried that the news of the successful firing of the crystal glass would soon reach the Duke's ears, and it would not be so easy to leave if he wanted to.
He has written the glass recipe and firing method on parchment and stored it in the formula cabinet in the refining room, which is also a reward for the Duke's large investment in building the alchemy workshop. It's just that in the face of the truth of alchemy, neither crystal glass nor alchemy workshops are worth mentioning.
Five days later, Kaimo finally met the owner of the letter, the Lord of Border Town, Roland Wimbledon.
In the living room of the castle, he just finished the salute, and before his butt could sit firmly, he couldn't wait to open his mouth and said, "His Royal Highness, I want to have a good talk with your alchemist."
"My alchemist?" The other party smiled, "Before you came, there was no alchemist in Border Town. But now, you are my alchemist."
"You mean... those alchemy formulas were all written by you?" Kaimo ignored the second half of his sentence, his face turning 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 palace tutors. If he could know all this, wouldn't the Wangdu Alchemy Association have already grasped the essence of alchemy changes? And he still wants to be above them, it's ridiculous to say it.
"Not exactly," Roland said. "These formulas come from ancient books more than 400 years ago, and I discovered them by accident. It seems that hundreds of years ago, they called alchemy chemistry."
"Chemistry?" Kaimo felt a lot better when he heard that the formula did not come from the Royal Capital Alchemy Association, but the answer given by the prince still surprised him. Alchemy books from more than 400 years ago? You must know that the Wangdu Alchemy Association has a history of less than two hundred years. Are the descendants not as good as the predecessors
"Yes, in the book, those scholars mentioned a hypothesis, that is, the immortality of matter. The matter that makes up everything in the world will not disappear or increase, they just change from one form to another. For example, this A piece of cake," 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," Kemos thought to himself, "if I burn a piece of wood into powder, no matter how I weigh it, the powder will weigh less than the wood. If the substance doesn't perish, then what is missing from it. Where did some of the matter go?"
"These are also explained in the book," Roland laughed. "They turned into gas and water. And the water was evaporated by the fire, so in the end you can only see the residue left behind."
"Gas?" Kaimo felt something coming out of his heart. "Does air also have weight?"
"Of course, all matter has mass." The prince nodded. "It's very simple to verify this. Put a bunch of sawdust into a bottle, cover the bottle, put it on the balance, and ignite the sawdust when it is balanced. Eventually you will find that , the weight of the bottle will not change. Because the gas released by combustion cannot escape and remains in the bottle."
"This... is also written in an ancient book?" Kemo asked eagerly, "Can you show me that book?"
"If you can promise me a few conditions," Roland spread his hands.
"Please speak."
"First of all, you have to work for me, and the salary is calculated according to your remuneration when you were in the alchemy workshop of Chishui City. Second, once you accept this job, you must abide by the confidentiality regulations. That is to say, the content of the work must not be disclosed. To other alchemists. Third, if you agree, we will sign a contract. This contract lasts for five years. After five years, you can choose to stay or stay. The alchemy results are no longer restricted by confidentiality regulations, and you can send them to other alchemists. The teacher or alchemy guild will show it. Correspondingly, if you accept these three conditions, Border Town will provide housing and a chemical laboratory. At the same time, I will also lend you the book "Elementary Chemistry", if you do not understand anything , you can ask me."
It doesn't sound like a harsh condition, Kaimo thought to himself. Although words like confidentiality regulations, chemical laboratories, etc. are really hard to speak, he can still understand the general meaning. The five-year contract was not too long. He originally thought that the lord would ask him to stay in Border Town forever.
And... even if the conditions were harsh, he wanted to witness the book that recorded the essence of alchemy.
Thinking of this, Kaimo got up and bent down slightly: "I am willing to serve you, Your Royal Highness."
"Very well, 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. By the way, I will introduce Regulations for the purpose and operation of those glassware."
What makes the chief alchemist feel a little wrong is why His Royal Highness is so skilled when talking about alchemy, and even makes people feel confident? He is just an ordinary noble who came into contact with ancient alchemy books by chance? But these are all details. He suppressed his doubts and asked, "I don't know what His Highness needs me to refine?"
"Highly concentrated acid, the more the better." The prince replied. (. If you like this work, you are welcome to come and vote, your support is my biggest motivation. Please come.)