The Last Alchemist

The idea of ​​creating a super lightning cage was Mobius's proud work.

He had done countless experiments for this idea, and now that Rosen directly said it had a fatal flaw, he suddenly felt a little unhappy, as if his child was being called ugly.

Mobius's eyes widened and he said angrily: "Flaw. What flaw? Why didn't I find it?!"

He looked like he was going to settle the score with Rosen if he didn't explain clearly.

Rosen reached for a battery and shorted the positive and negative terminals together.

When short-circuited, the resistance of the circuit is almost zero, and a huge current naturally appears in the circuit. The short-circuited positive and negative metal pieces immediately begin to turn red and white, then start to smoke, and finally melt into metal juice. .

Rosen kept moving. After the metal piece melted, he activated his magic power to connect the metal juice together and continue to maintain the short circuit.

In less than 2 minutes, the short-circuited metal began to slowly darken and solidify. After 4 minutes, the battery was exhausted and there was no movement at all.

Rosen handed the battery back to Mobius: "Touch it and see."

Mobius reached out to take the battery. As soon as his hand touched the battery, he immediately let go. The battery fell to the ground with a clatter. The ceramic casing shattered and the electrolyte inside spilled on the ground. It was so hot that it smelt like smoke. With hot steam.

"What's the matter?"

"It's hot, very hot!" Mobius said.

Rosen spread his hands: "Look, this is one of the flaws. A lightning cage becomes so hot after the two poles are directly connected. If hundreds or even thousands of them are connected together and still do this, I'm afraid the monster lord Instead of dying, these lightning cages will self-destruct first. The liquid inside the cage will become hot and boil, and the pressure will increase. Maybe the lightning cage will explode."

"This" Mobius was a little dumbfounded, but he was not willing to give in and said: "I admit that direct short-circuiting will cause huge damage to the lightning cage and may even destroy it, but there is a solution to this."

"Let's talk about it." Rosen wanted to see Mobius' level.

Mobius took out a piece of graphite from his pocket: "Look, this is graphite. Like iron and copper, it can also guide the power of lightning. However, its guiding effect on lightning is It is not as strong as iron and copper. On the other hand, graphite has a certain limiting effect on lightning. I can add graphite in the lightning path to limit the power of lightning, so that the lightning cage group will not be burned.”

Add a resistor to the circuit to limit the current. Mobius actually thought of this trick. Yes, very good. Rosen began to appreciate Mobius's abilities.

Perhaps this undead's scientific research ability is average, but this guy has great enthusiasm for the field of alchemy and has almost unlimited energy. No matter how stupid you are, if you work day and night and tirelessly, you will still have a high chance of gaining true knowledge.

Rosen nodded in approval of Mobius' approach: "Well, your idea is very good, and it is indeed effective. However, there is still a flaw that you may not be able to solve."

"you say."

Rosen reached out and knocked on the lightning cage on the table, and asked: "How long will it take you to build such a thing, and how much materials will it cost?"

"Uh~ It will take 4 days. The materials are difficult to find, especially the liquid inside, which is very difficult to prepare."

"One takes 4 days. How many days will it take for 10,000?"

"Uh~~~"

Mobius was speechless for a moment. This was a huge blow because what Rosen said was true.

To build a reliable and high-performance lightning cage, you need to use many rare materials, such as extremely pure copper, lead and other metals, as well as various acids, and good sealing. To create a lightning cage, even A hundred of them is not a big problem, but if you have to make thousands or even tens of thousands of them at once, you have to connect these lightning cages together to make sure that there is no problem with each one. Just thinking about it It makes people feel hopeless.

"Perhaps, these flaws can be circumvented by improving the performance of the lightning cage." Mobius was still unwilling to give in.

Rosen smiled and said: "The method you mentioned is of course feasible. Then let me ask you again, these lightning cages are disposable. Even if they are not used, the lightning stored in them will slowly disappear. This requires us to continue to work in the later stages. How to calculate the expenditure for maintaining this lightning cage group? "

"Uh~~~" Mobius licked his dry lips, unable to speak at all.

After a long time, he spread his hands and said, "What should we do?"

"I found a better way." Rosen chuckled.

"What can I do?" Mobius suddenly lit up and looked at Rosen eagerly. These days, he has been studying the thunder and lightning cage, forgetting all sleep and food, and has a very deep understanding of the power of thunder and lightning. But the deeper he understands, the more he feels that thunder and lightning are unfathomable, so he wants to know more about it. many.

By now, he has become deeply fascinated by this wonderful power that only gods can use. If there was a chance to learn more about Raiden, he felt that he was willing to give everything for it.

Rosen smiled slightly and waved to the wooden frame on the wall behind him. Under the influence of magic, two square black stones and a square copper bar flew towards the two of them.

This square copper bar has a very strange shape. One of its sides is not closed, and it leads to two lines. The two lines are very close to each other, less than 1 millimeter apart.

Mobius took the black stone and looked at it, becoming more and more puzzled: "Is this a magnet?"

"Yes, it's a magnet."

Rosen picked up two square magnets, activated his magic power, and used his magic power to hold the two magnets and let them float in the air. The poles of the two magnets face each other and remain parallel to each other, with a distance of 15 cm.

Mobius became more and more confused as he watched, unable to figure out what Rosen wanted to do.

Rosen didn't explain, he moved his mind again, and the square copper bar flew over, suspended between the two magnets in the form of a parallel square magnet.

"Watch it." Rosen smiled.

"I'm watching." Mobius said without blinking.

As soon as Rosen had an idea, the strange square copper bar started to rotate between the two magnets. At first, it was just rotating slowly.

"It doesn't seem to have changed," Mobius said.

"Don't worry, it's just the beginning."

The square copper bar rotated faster and faster, and gradually, the copper bar was completely invisible, leaving only an afterimage of high-speed rotation.

“Still no movement”

Before he finished speaking, there was a sudden flash of silver-white electric light on the two specially led connectors on the square copper bar, and a stable and tiny lightning flash appeared between the two copper wires. At the same time, there was a crackle in the air. 'The sound of explosion.

This thin piece of lightning is less than 1 millimeter long, but it is very bright. Whether it is a loud explosion or a dazzling light, its existence cannot be ignored.

"How could this happen? Did you secretly use magic?" Mobius was dumbfounded. He pointed at the copper ring that was still rotating at high speed, and his arms were shaking violently uncontrollably.

Rosen chuckled: "The structure of this thing is so simple, it's nothing more than two magnets and one copper bar. If you want to know if I use magic, you can go back and make one, right?"

This thing is actually a generator, and the principle is electromagnetic induction. On Earth, this law was first discovered by the famous British physicist Michael Faraday.

"Yes! Yes! You are right. I will go back and make one right now, but the magnet is easy to fix and I don't have magic power. How can I make the copper ring rotate?" Mobius kept touching his bald head. Wipe your bald head until it shines.

"You know, thunder and lightning don't like wood. You can make a wheel out of wood and put the copper ring on it."

"Yes, yes, I can just make a wooden runner. No, I can't stay here anymore, I have to go back and verify it right away!" He felt that he could not delay for a moment, and left Rosen's room in a hurry. .

Rosen smiled slightly, sat down on the chair, took the manuscript paper, and began to draw a sketch of the electromagnetic generator on the manuscript paper.

If you want to get huge electric energy, the battery solution is unreliable, and using a generator to generate electricity is the right way. The power of this generator must be very high. It must not be weaker than the power of Max, the lightning messenger, when he releases lightning. No, no, it must be stronger than Max's power, at least twice as strong as him.

Anyway, the stronger, the better!

When drawing the drawings, time passed quickly, and the day passed quickly. When the sun set, Rosen's stomach growled with hunger. He put down the work at hand, stood up and prepared to go to the restaurant.

As a result, before he had taken a few steps, the door to the room was pushed open with a bang, and Mobius strode straight in.

"What's so urgent?" Rosen asked knowingly.

Mobius waved a simple wooden generator in his hand, his face flushed red, and his eyes were as bright as light bulbs: "Rosen! Rosen! You are truly an unparalleled, unprecedented genius! God~ You actually used such a simple method to create thunder and lightning!”