Magus Tech Chapter 54: Dynamite Kaishan

Li Cha was walking on the mountain road, frowning slightly. He almost walked around the mountain once, but he didn't find any passages or cracks. Combined with the previous exploration of the consciousness body, it can be basically confirmed that it is basically impossible to take a shortcut to take the crystal skull out of the mountain.

Then they can only find a way to dig a tunnel from the outside of the mountain, enter the secret room inside the mountain, and then take out the crystal skull.

In this case, it will be a large-scale project, especially in the current medieval world.

If you use only human power to use hammers and anchors, it may be difficult to complete in half a year.

As far as spells are used, "Chapter of Monroe" does have an earth spell that destroys rocks. I have recently learned one, but at the wizard apprentice level, it can only be cast on a very small scale, even if it is used continuously. Also very average.

You still have to think of a better way.

Li Cha narrowed his eyes slightly, stopped on the mountain road, looked at a rock wall next to the mountain road, thoughtful.

Li Cha knew that there was a secret room tens of meters behind this rock wall, but how to dig through this distance with the fastest speed?

After thinking for a moment, Li Cha raised his finger to the rock wall and said a spell.

"Wow... Wow..."

On the rock wall, the rock cracked and peeled off little by little.

Evocation earth spell · zero ring low level · earth and stone control.

"Hua la hua la", the rocks kept falling, splashing a lot of dust, which seemed to be very powerful, but in fact it took a long time to make a hole with a diameter of three or four centimeters and a depth of more than ten centimeters.

Li Cha looked at the hole, pursed his lips, and recited the incantation again. A moment later, a ball of liquid oxygen was born and filled the hole.

After finishing these, Li Cha thought for a while, and then found some sawdust and hay from nearby and stuffed them into the holes. The standard liquid oxygen explosives were made.

Yes, liquid oxygen explosives—explosives in the true sense, are somewhat different from ordinary liquid oxygen explosions because they are filled with some combustibles.

Liquid oxygen explosive is a kind of mine explosive, which was invented by German Linde in 1895 on the modern earth. Generally, combustibles (such as carbon black, coal ash, paper scraps, wood chips, etc.) are wrapped into cylinders, immersed in liquid oxygen before use, and immediately moved to the place where the explosion is required to detonate after absorbing liquid oxygen.

After detonation, the combustibles inside burn rapidly, the temperature rises sharply, the volume expands rapidly, and an explosion is triggered, which is more powerful than nitro explosives such as TNT.

The cost of liquid oxygen explosives is extremely low in a complete industrial system, but because liquid oxygen volatilizes quickly at room temperature, the life of the explosives is very short, generally 15 to 20 minutes, and must be impregnated temporarily before use. Therefore, it cannot be used to make bullets, bombs, shells, etc. It is a "peaceful" explosive, and its greatest use is industrial mining.

To put it simply, this is explosives specially used to open mountains.

Explosives to open mountains, explosives to open mountains.

Step back, turn your head, look at Pandora, and point to the side.

Pandora's eyes flickered, she understood the meaning, and walked aside reluctantly to dodge.

Li Cha took a deep breath, fixed his eyes, and waved his hand to release a ball of flame, shooting at the liquid oxygen explosive in the hole.

Immediately afterwards, an air wall was released in front of him.

With a sound of "boom", the flame flew into the hole, detonating the real liquid oxygen explosive, the rock wall shook violently, and a huge concave hole exploded along the hole made by the groove, and the gravel resembled Bullets burst out, flying in all directions, and then "bang bang bang" was blocked by the air wall.

After the dust settled, Li Cha removed the air wall, took a look at the effect, and found that he was quite satisfied. At least using liquid oxygen explosives to open a mountain is more efficient than using artificial or simple spells, and the entire project can be completed in less than a month.

But in the process, some problems that may occur must also be fully considered.

After all, in order to dig a tunnel, it is not enough to use dynamite to blast it all the time.

Brain violence and destruction can't solve any problem, the real solution to the problem still depends on using the brain.

Digging a tunnel seems simple, but in fact there are many aspects that must be considered, otherwise it will not develop into a complete industry on the modern earth.

The method of digging tunnels with boreholes filled with explosives is called drill and blast on the modern earth, and is mainly used in the construction of mountain tunnels. In addition to the core blasting, a series of issues such as measurement and setting-out, bracket reinforcement, ventilation after blasting, smoke exhaust, and **** discharge must also be considered.

Although it is said that the excavation of the tunnel is for one-time use and not for repeated use, and there are no strict requirements in terms of safety, but it cannot be completely ignored. Otherwise, what if the tunnel is dug halfway and the entire mountain is blown down in one blast? According to the volume of this mountain, it really collapsed and buried in it, let alone wizard apprentices, even real wizards, couldn't survive.

Therefore, some problems must be thought through clearly and a solution must be found before the real excavation can begin.

For example, the support problem needs to be solved ~IndoMTL.com~ It is feasible to use wood for reinforcement, and there is no shortage of wood in the forest. But better get some good quality iron.

It's just that the mining, refining, and forging of iron are more troublesome than digging tunnels. If you do it by yourself, it will take too long. Fortunately, the technology content is relatively low, and the current world already has a relatively mature system, so I can directly contact the outside world and solve it by purchasing.

I have the money. There are many gems in the suitcase. After all, in order to get rid of the shackles of identity and leave the Blue Lion Kingdom, I planned it long ago, and I took all aspects into consideration. But having money is not enough, you need to have contacts who can trade.

So... where to find it?

Or, think of other ways to solve it?

Thinking about it, Li Cha waved at Pandora and walked down the mountain.

……

Time moves forward a little bit.

In the forest below the mountain, the dead leaves were densely covered, and the sound of horseshoes sounded.

"Da da da..."

Prince Gero rode forward on horseback, and the rest of the nobles guarded him vaguely. Soldiers on the outer perimeter were on guard while investigating. Their task was to find the beast first, notify the nobles, let the nobles hunt and kill them, and prevent the wild beasts from going crazy and directly attacking and causing the nobles to be injured.

At this moment, a strange roar suddenly sounded from the nearby mountain.

"Hiss!" Some horses were frightened, their front legs raised high, and then fell heavily, making two deep depressions on the ground.

"What's the situation?" Someone shouted.

Everyone immediately became alert, drew their weapons one after another, and looked around vigilantly.

One second, two seconds, three seconds...

Half a minute passed, but nothing happened.

This...