The Last Alchemist

The principle of the Galilean telescope is really simple.

As long as one thing is met, that is, the light collected by the convex lens falls exactly on the virtual focus of the concave lens, then the user can see a clear, upright image through the eyepiece.

The magnification of this type of telescope is also easy to calculate, which is the ratio of the focal length of the eyepiece to the objective lens.

Rosen briefly calculated the focal length of the lens, and with Savi's help, he quickly came up with a suitable concave lens.

He put the two lenses back into the magic mirror, walked to the window, looked at the distance a few times, and adjusted the lens tube slightly, Rosen nodded with satisfaction.

"How's it going? How's it going?" Savvy asked repeatedly.

"It's okay." Rosen handed over the magic mirror.

Savi took the magic mirror, picked it up and looked out the window, then took a breath: "God, this is simply a miracle! Rosen, you are so powerful, even more powerful than the alchemist Parkland!" "

He held the lens tube and kept adjusting the direction and looking at it. Suddenly, his body stopped and his mouth opened slightly, as if drool was flowing out: "Oh~ God, I finally understand why the Baron is so obsessed."

After saying this, he stood motionless by the window, like a piece of wood.

Rosen waited for a while, and when he saw that Savi still didn't move, he walked over and patted the fat man on the shoulder: "What did you do? Isn't it just a magic mirror? Why are you so excited?"

Savi was still holding the magic mirror and looking at it non-stop. He murmured: "Look in front, look in front, that's the window on the second floor of Night Devil's House. Oh, my god, Miss Lisa is receiving guests in the room. Oh~oh~she is actually lying by the window working~~what a coquettish bitch~"

It turns out this guy was peeping!

Rosen almost went crazy. He grabbed the magic mirror and said with a straight face: "Okay, Mr. Savi, after you learn how to make lenses in the future, you can see however you want, but now, it's time for you to fulfill your contract." !”

Savvy was still unfinished, but Rosen's words also had a huge appeal to him. He sneered and said: "No problem, no problem, let's get started."

Rosen nodded and pointed to the glass crucible: "Burn the glass."

"Yes." Savvy went to work in a hurry.

Rosen began to think about the tools he needed.

On modern earth, there are many types of glass based on different raw materials and processing techniques.

But in Savi's glass shop, there is only the most common silicate glass. With this glass, you can only make containers, but not burners, because it is very easy to crack after being burned.

However, Rosen's original purpose was not to make a burning pot. For burning pots, it is much better to use ceramics than glass. His biggest purpose was to make a few glass needles.

In other worlds, the most common way to use medicine is to take it orally, but penicillin is not resistant to gastric acid. This method is slow to take effect, wastes a lot of medicine, and is far less effective than needle injection.

Savi was an expert at burning glass. He skillfully added charcoal to the furnace and turned the bellows.

‘Hu~hu~’

The bellows continuously blew fresh air into the furnace, and the flames in the furnace immediately rose. After a while, the glass in the crucible was burned into juice again.

Rosen dipped an iron rod into some glass juice and looked at it to make sure that the glass had completely melted. He used his alchemical power again to remove the impurities and bubbles in the glass, and then said, "Come on, pour the glass juice into this clay." In the mold, the movements must be light and slow, yes, that’s it.”

"Okay~" Savvy skillfully picked up the crucible with iron tongs, placed it on top of the mold, tilted it slightly, and the honey-like glass juice slowly flowed into a square mold.

Rosen stood aside, waiting for the glass juice to be almost poured, then he concentrated his energy and activated his alchemical power.

At this time, the glass is liquid and has strong fluidity. What he has to do is to use the power of alchemy to directly control the shape of the glass. Only in this way can he create a usable glass needle under simple conditions.

The next moment, Savi once again witnessed a miracle. The glass juice poured into the mold actually moved on its own, as if it had life.

Although it was not the first time, Savvy still held his breath subconsciously, as if if he breathed harder, he would scare away the glass elves in the mold.

Rosen immediately shouted: "Steady! Don't be nervous!"

"Gudu~" Savi's Adam's apple moved, becoming more and more in awe of Rosen.

In the mold, the glass juice continued to surge. After about ten seconds, a smooth and precise glass round tube emerged from the juice.

The glass tube is colorless and transparent, with a very pure luster, very round and very bright, and no flaws can be found.

Savvy had never seen such exquisite glass products before, and was stunned for a moment.

Rosen suddenly shouted: "That's enough! The glass juice is enough, take it back and continue to heat it."

Savi woke up from his dream and immediately moved the crucible back.

When he turned around to look again, he saw that all the scattered glass juice had disappeared in the mold, leaving only a delicate and perfect glass tube. The thickness of the tube was the same from front to back, with a small hole at one end and a hole at the other end. It's a big hole, it's indescribably beautiful, but I don't know what it's for.

On this side, Rosen wiped the sweat from his forehead, took out a meatloaf from his pocket and chewed it. He ate two large meatloaf in a row before the hunger in his belly disappeared.

Then, he picked up the cooled glass tube and checked it over and over again. After looking at it for more than ten seconds, he sighed: "The diameter of the round tube is inconsistent, the inside is not smooth enough, and the sealing is insufficient. It is useless."

The shape of the needle tube is much more complicated than that of the lens. Because of the sealing requirement, the precision requirement is also higher. The molding of the needle tube depends entirely on Rosen's control of thinking. A slight imbalance in force will affect the shape and cause the needle tube to fail.

If it is scrapped, it is waste. Rosen threw the needle tube back into the glass crucible.

The fat on the fat man Savi's cheeks trembled, and his teeth hurt: "This is such a good thing, so you don't want it?"

Rosen looked at him sideways: "Since it is useless, why don't you return it to the furnace? I do this to save materials for you."

The fat man shook his head repeatedly: "No, no, no, you don't need to save it, just use it. Give me the waste you don't want, I'll take care of it!"

This level of glass, no matter what shape it is, can be sold at a high price. Throwing it away is really a waste of resources!

"It's up to you." Rosen probably knew what Savvy was thinking, but since it was a collaboration, it was only right to give the other party a little sweetness. After a short rest, he had recovered and clapped his hands and said, "Let's continue."

"Okay." Savvy's enthusiasm increased greatly.

In the following time, Rosen tried 10 times in a row, and each time failed for various reasons, producing a large number of waste products. He was exhausted and his whole body was soaked with sweat. Savvy, however, smiled and carefully and cherished the waste products one by one.

Rosen was exhausted. He rested for half an hour, ate and drank enough, summed up the lessons of failure, and then started again.

This time, perhaps because practice makes perfect, Rosen felt that he was doing it particularly smoothly. The whole molding process was completed in one go, very smooth, and particularly labor-saving. After the needle tube was formed, he didn't feel tired at all, and there was not much sweat on his forehead.

When the needle tube finally cooled and formed, he began to check it carefully. After looking over and over for more than half a minute, he breathed a sigh of relief: "There are still some flaws, but it should not affect the use."

He still had some energy left, so he said to Savvy: "Come on, continue."

While he was in good condition, he decided to make a few more needle tubes.

Savi certainly had no objection and started to pull the bellows again.

In the following time, Rosen used alchemy continuously to shape the glass.

Until the evening, Rosen scrapped more than 50 samples in a row, and finally only successfully prepared 3 usable glass needle tubes. Moreover, in order to restore energy, the rest time during the work day accounted for one-third.

However, Savvy was not idle when he was resting.

At Rosen's request, he used a hollow iron pipe to blow a large number of crystal clear glass cups.

These cups have very low precision requirements, and their only function is to hold solutions, and blown products are sufficient.

A day's work had its effect. After using alchemy for many times, Rosen had a more delicate and precise grasp of his alchemical power, and was more comfortable with it.

He activated the alchemy talent tree again, and found that his alchemy proficiency had increased by 20%, reaching 98%. As long as he worked harder, he could be promoted to the third level of the elemental friend talent.

"The things are almost done, I'll go back first. Oh, by the way, I will personally bring this magic mirror to the baron." Rosen pointed to the metal cylinder.

Savi felt a little regretful. This was a great opportunity to please the baron, but he was very awed by Rosen, and he was even more looking forward to the mirror-making process that Rosen was about to teach him, so he handed the magic mirror to Rosen without saying a word.

Rosen said with satisfaction: "If there is no accident, I will come on time tomorrow morning."

"Okay, Master." Savi subconsciously changed the address.

"Yeah."

Rosen nodded and left Savi's glass shop with the glass container.

He first went to the house on the west side of the town, put away the glassware, then drew a bucket of clean water from the well in the yard, took a quick bath to wash off the sweat, then changed his clothes, tidied his appearance, and after making sure his appearance was decent, he took the repaired magic mirror and went out.

After leaving the yard and the alley, Rosen walked along the main street all the way to the Baron's Mansion on the top of the hill.

When he arrived near the town square in front of the Baron's Mansion, Rosen did not go directly into the mansion. Annie was near this area, and he had to contact her first.

Looking around the square, Rosen didn't see anyone: 'Annie should be hiding, I can't see her, she should be able to see me. '

Thinking of this, Rosen ran to a conspicuous place in the square, waiting for Annie to find him.

As a result, after waiting for more than ten minutes, Annie still didn't show up.

'Strange. But maybe Annie was distracted and didn't see me for a while. I'll ask someone. ’

He took out a bronze bird, pulled a passerby, and asked: "There is a female hunter in the town, she is very beautiful, have you seen where she is?"

The town is small, everyone basically knows each other, and the hunters are usually fully armed, tall and strong, and Anne is a big beauty, she must be very eye-catching.

The passerby really knew, he pointed to the tavern on the edge of the square: "There is a big beauty sitting in the tavern, I wonder if it is the one you are looking for."

These days everyone is hungry, most people are malnourished, there are not many people who can be called big beauties, nine out of ten are Anne.

Rosen threw the bronze bird to the passerby and walked towards the tavern.

The tavern has a peculiar name, called the Dove's Nest. It is very simple and looks like a long wooden house. When Rosen walked in, he found that there were only a few guests inside. The waitress stood behind the counter, wiping the wine glasses boredly.

Rosen looked around and did not see Annie, but he saw a very special woman by the window of the tavern.

She had smooth long wine-red hair and wore a set of gorgeous and exquisite dark red leather armor. She sat with her back to Rosen. Her face could not be seen, but the body curves shown by her back had already shown a charming temperament.

The passerby was right. She was indeed a great beauty, but she was not Annie.

There was a bottle of Moonlight Night wine in front of the woman. She was drinking by herself. The liquid poured from the bottle was scarlet and red, and it exuded a strong aroma of wine.

'The wine-red color, the almost inhuman beauty, and the gorgeous clothes that were out of tune with the whole environment. This can't be'

Rosen took a look and his heart was shocked, and a strong ominous premonition emerged.

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