Wizard: I brought the wrong system.

Chapter 333 So-called Good and Evil and Glass Making
When the bark of the magic tree was sold, two deer carts went, and two carts of sulfur and saltpeter were brought back.

In other words, although Yaro used military horses to tow away one cart, he left a cartload of sulfur and saltpeter in the hunter's courtyard on the outskirts of Lan'er Village.

Besides these ordinary materials, a mutilated body was also hidden in a wooden house in the courtyard.

That's right, it's the werewolf corpse that we got from the Witcher.

As planned, Yaro intended to dissect the corpse upon his return, and ideally, to create a microscope to examine the werewolf's cellular structure in detail.

But the situation has changed now, and there is no time to analyze werewolves in the near future.

To prevent the carcass from decomposing, Yaro took some saltpeter from the wooden cart, put it into a wooden barrel, and prepared to use the saltpeter to make ice to cool the wolf's body.

Yaro added water and saltpeter, then immersed the entire humanoid wolf body in it.

Throughout the entire process, he remained completely unmoved, treating it as if he were simply handling a domestic animal.

As he pressed his hairy thighs hard into the saltpeter water, Yaro inexplicably thought of the deer that had been hunted and the few 'amber' sprites.

"Werewolves are more human than deer or elves. In fact, werewolves can transform into human appearances. Why don't I feel any emotional fluctuation when I kill them?"

It may be related to an innate aversion to werewolves stemming from an experience in childhood.
Perhaps it is related to his grandfather's long-term teachings in front of the blood-stained experimental table?

Or perhaps, it was during his time at the academy that he heard too many stories of professors using students as experiments?

Yaro quickly came up with the answer.

"When I killed those human villains, I didn't feel the slightest emotional fluctuation!"

Punishing evil is promoting good.

The fewer werewolves that prey on humans in the world, the safer our living environment will be.

Are werewolves driven by cannibalism, regardless of good or evil?

Cannibalism is the greatest evil!
Why did the tigers of the former kingdom become endangered animals?
At the time of the founding of the nation, due to the prolonged war, people extensively cultivated the mountains and forests in order to make a living, which left the animals on the mountains homeless. They came down from the mountains, ruined the food, and were then hunted and killed.

Because of a lack of prey, tigers have no choice but to come down from the mountains to eat people.

Because of the frequent occurrence of tigers eating people, the people were filled with fear, so the previous kingdom encouraged the hunting of tigers.

More than a decade later—tigers have disappeared!
Are tigers pitiful?

They were pitiful, but they deserved to die!

Are laboratory mice pitiful in the pursuit of technological advancement?

Are rhesus monkeys, the primates, pitiful in the fight against the pandemic?

Guanzi said, "When the granaries are full, people will know etiquette."

Yaro never hesitates to show goodwill to those who pose no threat to him.

In an emergency, what animals are off-limits for food?

"Can't we also understand what is called evil as any threat that the world might pose to us?"

"Is the so-called goodness different from the world's potential and hidden goodwill towards us?"

Starting from oneself, it may be cold, but it is the most sincere emotion.

Yaro moved a blue stone from the courtyard and placed it on the wolf's body without any qualms.

thump!
Water splashed, wetting the edges of my sleeves. The humanoid remains...slowly sank.

With a flick of his sleeve, Yaro turned and left.

……

"It's time to build a telescope."

The Mannheim market not only didn't sell telescopes, but it didn't even have raw materials for glass.

Fortunately, Yarrow had made a lot of glass when he was doing optical experiments, so he was familiar with the raw materials for glass.

The simplest raw material is quartz, and it is best to use pure, milky-white quartz.

This material is very common. Not to mention that it is used in many places in Perrin Castle, even if you can't find a quartz mine, you can pick out a lot of it from a handful of fine stones.

Yaro didn't need to do that. Since quartz was used in many places in Perrin Castle, it meant that there were quartz veins nearby. He had already collected several pieces on his way back.

Using quartz as the raw material alone requires a high temperature of around 2,000 degrees Celsius.

Yaro has molten rock, and the Fiery Greatsword has a lava eye that can store fire. Two thousand degrees is not an unattainable high temperature, so there is no need to specifically search for or make soda ash.

He took out milky-white quartz ore from his spatial ring, heated and cooled it continuously, and then pounded palm-sized pieces of quartz into fine sand.

A semi-enclosed kiln is made of clay, and quartz sand is placed inside. Flames are continuously released into the kiln.

As the temperature inside the kiln gradually rose, the black interior became increasingly shiny, and even emitted crisp cracking sounds.

Fortunately, the kiln walls were thick enough to withstand the pressure for a short period of time.

The kiln wall is a whole, and the internal temperature will continuously dissipate. The quartz sand can only completely withstand this high temperature, and then it becomes brighter and softer, gradually softening and dissolving.

Once all the quartz sand had dissolved into a viscous, glaring liquid, Yaro breathed a sigh of relief. He glanced at the several nicks in the patterns on the Fiery Greatsword, a hint of heartache flashing across his face.

"It took three firestones to make a glass. If I had known it would take so many firestones, I would have just made some soda ash instead."

If we can find soda ash ore or produce soda ash, we can lower the required temperature to around 1,500 degrees Celsius.

"Soda ash can also be used for saponification reactions, and it can be used to make soap and glycerin in the future."

However, pure quartz glass is much better than ordinary glass in terms of heat resistance, shock resistance, wear resistance, and even light transmission, so it's really impossible to compare whether this deal was a loss or not.

Before the glass solution had completely cooled, Yarrow picked up a metal rod and stirred it continuously clockwise to cool it down as quickly as possible, which also helped to remove any air bubbles that might be present.

After waiting for a while, the temperature inside the kiln gradually decreased.

The bright glass solution gradually became viscous from its liquid state.

Once the desired consistency was achieved, Yaro used his fire magic to unleash his magical hand, shaping the viscous liquid glass into a convex mirror, much like kneading clay.

Yaro has extensive experience in making ordinary glass. Apart from the required temperature, the molding process for pure quartz glass is not much different from that for ordinary glass.

As for the unevenness of the glass, there are plenty of examples in academia, and it's not a difficult problem to calculate it out of thin air.

Following the instructions in the academy, Yarrow quickly sculpted the finished product. He then used the curved scraper he had made earlier to stabilize the curvature and clean the glass surface before setting it aside to cool naturally.

While the glass was cooling, Yarrow was not idle either. Following the measurements given by the academy, he made a three-section single tube out of balsa wood.

(End of this chapter)