Although the nitroglycerin has been prepared, the subsequent work is not easy.
Generally speaking, nitroglycerin also needs to be mixed with diatomaceous earth in a ratio of 3:1 to obtain the commonly used yellow safety explosive.
Diatomaceous earth, a kind of earthy siliceous rock, is composed of the remains of ancient diatoms. Its main component is amorphous silica. It also contains opal and other small amounts of oxides. It is chemically stable, has a loose texture, and can be observed under a microscope. It has a special porous structure, and the number of pores is about 5000-6000 times that of charcoal.
Therefore, diatomite is not only chemically stable, but also has an excellent adsorption effect on liquid substances.
Yarrow doesn't know if there are diatoms in this world, and he doesn't know if the current land was seabed tens or hundreds of thousands of years ago. He doesn't know where to look for diatomaceous earth, so he can only use his brain on the design plan.
As for the instability of nitroglycerin, it can be solved by directly installing it into the space ring.
The inside of the space ring is like a balloon bag. When something is put in, that part of the space will expand.
The edge of space can be sensed with mental power, but Yaro doesn't know what the edge looks like. He only knows that the temperature will not be transmitted or penetrated.
It's just that the space of the entire space ring is integrated, and the temperatures of the internal items will transmit and affect each other, and eventually reach an average temperature.
Yaro drew a sketch. Since the amount of nitroglycerin is not much, it is necessary to make effective weapons and make full use of them.
The best way is to use firearms, which Yaro happened to have already studied.
The first is to borrow the structure of an oil tank and reserve multiple partitions and anti-wave boards inside the bomb to reduce liquid collision inside the bomb.
This design is to prevent the bomb from swinging in mid-air and exploding when the bomb is dropped.
The next step is to carve the magic pattern inspired by the fire element on the outer metal shell. It doesn't take much effort. It is enough to quickly raise the temperature to over sixty degrees.
The engraved magic traces can evenly split the metal shell into several sharp fragments when it explodes.
One thing, two gains, somewhat killing two birds with one stone.
"Wait a minute... Since we are going to use the magic pattern as a trigger, why not draw some patterns to cover up the magic pattern?"
"More patterns can produce more fragments, and can guide the enemy's thinking like 'fear and coercion'."
"It would be better if others could be fooled into thinking that these are 'ordinary' exploding flints."
Yarrow had seen the power of exploding flint.
At the end of the desperate battle with Kenan Nabi, Kenan Nabi used multiple exploding flints to explode himself to death.
Judging from the results of the explosion, the damage caused by exploding flint is restrained, like a sudden burst of fire. The magic power and high temperature explode in a spherical range, but the truly effective killing radius is only about 1 meter.
Grenades are different. The explosion of a grenade is like an exploding hedgehog, with the most concentrated damage radius being 5-6 meters.
If the enemy uses grenades to defend against exploding flint, then he will be in for a huge surprise.
The sputtered fragments are physical attacks, and the damage radius can reach thirty meters!
Of course, the more marginal it is, the fewer fragments there may be.
Attacking mortals may also result in maiming, wounding and attrition.
Attacking the extraordinary may not necessarily have any results.
But within the range of 5-6 meters, the effects of high temperature, high pressure, fragments...the multiple blows will definitely make the victim extremely 'satisfied'.
"You can use 'Fire Ant Steel' for the surface layer. Compared with ordinary materials, this extraordinary metal has a stronger impact on the magic barrier. This is equivalent to adding another layer of magic damage."
'Fire Ant Steel' is the only extraordinary metal in Yaro's hands, otherwise 'Demon Hate Stone' is the best choice in his mind.
'Demonstration Stone' has a better effect on breaking through magic barriers, and its color is also very similar to Explosive Fire Stone.
After designing the rough plan, Yaro began to concentrate on production.
A separate structure is not difficult to make with the help of high-temperature-resistant magic hands.
When the material was still semi-solidified, Yaro used his magic hands to shape it. If the material 'hardened', he could also use hot melt to heat it. The whole process was similar to kneading a ball of clay.
After the rough shape is completed, the magic lines and concealing patterns are carved on the metal surface, and then soaked in ice water to cool down.
Based on the amount of digested glycerol at this time, Yaro made a total of five grenade shells, each with a capacity of almost 160 grams.
Use a syringe to extract nitroglycerin and inject it into the cooled appliance one by one. After making sure there is no air inside, seal it with a mortise and tenon structure iron nail.
A little bit of nitroglycerin will leak out when sealing, but the shell and digestive glycerin have been cooled down, so even if some leaks out, it is unlikely to cause an explosion.
Up to now, except for the lack of activating device, these grenades are pretty much the same.
If they were returned to normal temperature and dropped to the ground, they might detonate successfully.
——It feels a bit like throwing a cannon, but it is not impossible.
"The next step is to add magic pattern ink to the magic pattern grooves."
Adding magic patterns to the magic pattern grooves does not mean just pouring some magic pattern ink into it. It means re-drawing it accurately from beginning to end.
And during the drawing process, mental power and magic power need to be constantly changed and adjusted like releasing a spell.
The only good news may be: the activation conditions of nitroglycerin are not high, the heat conduction effect of metal is not bad, and the required heating magic pattern does not need to be too complicated.
Paint the magic pattern, apply potion to solidify the magic pattern, pour ink again to cover up the magic pattern, apply anti-rust oil...
A metal ball covered with strange black lines appeared in Yaro's hand.
The heating magic pattern and the exploding flint stone are both fire-type magic patterns. In addition, Yaro deliberately placed the concealed pattern on the exploding flint stone. The final product looks somewhat similar.
——Much like a devil fruit.
Yaro looked at the finished product he had just made and muttered secretly: "I've only seen it a few times. Who can remember what the exploding flint looks like? That's about it."
"Maybe it's better this way. Someone with some knowledge can see the fire magic pattern, which makes it look more real."
Once you have the first finished product, just follow the steps for the next four.
…
From yesterday's busy work to today's noon, when the rain dispersed, five strange metal balls were finally ready.
On the corners of the hang glider, the remaining raindrops were dripping down.
Yaro stuffed a mouthful of white-flour steamed buns and moved his binoculars to look at Perrin's territory again.
"Here comes the bait!"
7017k
