Wizard: I brought the wrong system.

Chapter 129 Jian Cheng
When Yaro returned to smelt the iron blocks, he suddenly realized he had done something foolish.

Iron has a higher melting point than silver, and molten iron will melt the silver core that was originally outlined!
First, make the steel blade, then pour in the silver liquid?

How to make the hollowed-out part in the middle of a steel sword blade?
The Magic Hand is constructed with a palm-shaped structure, so it's impossible to create an internal hollow structure!
Unable to come up with a better solution, Yaro had no choice but to abandon the one-piece structure and make it into a flip-top shape, then carve the hollowed-out shape into it.

However, the hardness of the opening of a longsword made in this way will definitely be affected.

Yaro's solution was to make the opening into alternating tooth-like structures. When closed, the tooth-like structures at the opening would interlock like a zipper, preventing the chopping from creating a direct impact on the notch.

After carving these details, the next step is to complete the third important structure of the Fiery Sword.

The heat dissipation and steam release structure on the sword hilt.

The steel surface of the sword hilt is engraved with concave cylindrical hollows. These hollow structures will move around the gaps in the nail head to absorb excess heat from the palm.

The key is that the central sword guard needs a small mechanism to release the stored steam, so the carving in these areas needs to be extremely delicate.

Yaro carefully carved for a long time, and even if he made a mistake, he could use the heat-melting technique to gradually soften it and make corrections.

Having had ample opportunity to experiment and make mistakes, Yarrow eventually succeeded in refining it.

Thus, the overall structure is complete.

Yaro placed the silver core into the unfolded steel blade and then activated 'Heat Melting Technique' to forcefully close the steel blade.

Take out some more stones and place them in the fitting positions left for the 'hot melt stone' to completely seal the silver core in the middle. Then heat the whole thing up and use an iron hammer to hit it with all your might to fill any gaps in the middle.

Finally, heat and quench.

"laugh--!"

Sparks flew up with a wisp of smoke, and the pungent, oily odor filled the entire laboratory.

The bright red longsword gradually dimmed into a dark blue-black color. Yaro opened the laboratory door and waited until the unpleasant smell had completely dissipated before taking out the pitted and unremarkable longsword from the quenching liquid.

First, remove the broken stones, then insert the cut hot-melt stones, and then grind them continuously on a whetstone to make the surface neat and sharpen the blade.

As these processes unfolded, the sword gradually shone, becoming brighter and brighter.

By now, the Fiery Longsword is almost finished being forged, but the hollow tube in the hilt still needs to be filled with some water-locking material.

The first thing that came to Yaro's mind was the 'super absorbent resin' from his previous life. This is actually an artificial material that is used in many movies and TV shows to create artificial snow. It is also used in things like diapers, ashtray additives, and stress-relieving toys.

The molecular structure of 'superabsorbent resin' contains a network of molecular chains. When the superabsorbent comes into contact with water, it immediately undergoes electrolysis, dissociating into positively and negatively charged ions. These positively and negatively charged ions have a strong affinity for water, thus giving it extremely strong water absorption and water retention properties. It can quickly absorb hundreds or even thousands of times its own weight in water and swell into a hydrogel after absorbing water.

By filling the sword hilt with this material and using paper as a spacer, it can be ensured that liquid water will not rush out when the steam release structure is activated.

But... this is a man-made material after all, and Yaro can't make it!
Actually, flour also has good water retention properties, but the hilt of Aro's sword will generate heat afterward. If flour were used, cooked food could be prepared quickly, and the so-called water retention properties would naturally disappear.

Therefore, what Yaro chose was a type of shell powder from this world.

This shell powder is somewhat similar in properties to 'superabsorbent polymer', which is a common material used to remove moisture and is also highly absorbent.

Carefully pour the shell powder into it, then use the 'Water Extraction' spell to add pure water. Only then is the Fiery Longsword successfully crafted.

……

After resting for a while and eating something simple, Yaro began to study the 'airship power core' that Bosco had given him. And then… he couldn't understand it!

The surface was covered with all sorts of magic runes, which were far beyond the comprehension of a beginner like Yaro!

However, these magic runes are divided into some areas. Yaro tentatively input magic power, and after several attempts, he finally found the correct location to input magic power.

This is actually easy to understand. Any device that wants to receive external forces will naturally have a port that connects to the outside world, just like the circuit on a toy. What Yaro was looking for was this circuit.

After determining the input point, he carefully input a small amount of magic power. The 'airship power core' hummed, and a notch on the outer end of the metal sphere gradually rotated half a circle.

It seems there's not enough magic power, resulting in poor driving performance.

But Yaro had achieved his goal; he had identified another component, the position of which was the power output end.

……

Through these experiments, Yaro gradually deciphered the structure on the metal sphere.

The metal sphere was not sealed, and with all sorts of magical patterns appearing on its surface, as more and more structures were confirmed, Yaro gradually found the structures he wanted.

Firstly, the magic absorption structure.

This is the refueling port of the 'airship's power core,' which can also be understood as the battery section of this thing.

Secondly, the kinetic energy conversion structure.

This magic rune, when infused with magic power, will generate a rotating wind.

Thirdly, the kinetic energy control system.

This is easier to understand; it's a system for adjustment and control.

After confirming the three magic rune structures, Yaro finally left the house and went to the corner of the street to buy some magic rune ink.

He then immediately returned to his laboratory and began to imitate the magic pattern structure of the 'airship power core'.

The mechanical structure of the 'airship power core' is very rudimentary. As long as these magic patterns can be successfully replicated, the 'light speed measurement' experiment can begin immediately.

And then... it failed again.

The magic runes are not as simple as Yaro imagined; it's not as easy as simply replicating the external appearance to succeed.

Yaro had no choice but to go to the library again and rent books on magic runes.

As time passed, Yaro gradually came to understand the key to knowledge about magic runes.

The original magic runes were actually replicas of the structures of different spells. However, after a long period of development, they gradually grew into a new discipline and took a different development path from the structure of spells.

Magic runes are also a discipline!
However, to master rune magic, we must first return to the issue of spellcasting.

Just like the problems Aro encountered when he first learned magic, magic runes also require attention to the thickness of the ink, the angle of transition, whether it is done in one stroke or multiple strokes linked together, the type of magic rune ink, and so on.

(End of this chapter)