Global Wasteland: Unlimited Upgrades for Vaults

After a quick look, Su Mo gave up the idea of ​​continuing to study and try.

People should not be greedy for merit.

The teaching just now has not been fully integrated. If you rush to learn new techniques, it is too easy to backfire, the foundation is unstable, and it is difficult to make progress in the end.

Returning the screen to the very beginning, after sitting on the stone bench to close the curtain and rest for a while, Su Mo started recording.

This time, what needs to be crafted is not a tool, but... picric acid!

"Although the picric acid produced in a hurry last time was upgraded to an excellent level because of the workbench, it didn't have any attribute bonuses. It should be something wrong with my steps and preparation method."

"But even so, it's powerful enough. What I need more now is stability. I must find a good way to detonate it safely!"

Looking at the picric acid manufacturing flow chart traded from the tundra shelter, Sumo frowned and thought about how to prepare the bomb.

The reason why picric acid was eliminated was because it was not easy to detonate, and it exploded at a little bit.

But whenever it comes into contact with an object and has a violent impact, the picric acid will explode immediately, without any armor-piercing strike ability at all.

And if you put too much of this thing, you will be within the explosion range, and if you put too little, it won't have enough lethal effect.

Of course, the optimal solution must be to make landmines, then lure the enemy up, and use the landmines to kill the enemy.

"It's a pity, if I want to make landmines, my hand rubbing skills are not enough, and the raw materials are not good enough!"

"It seems that we can only use the most primitive explosive kit to deal with the current situation!"

After figuring out the idea, there is only one remaining task - to prepare a large amount of picric acid raw materials!

Just like in farming games, before killing monsters, you have to fiddle with weapons and ammunition. Sitting in front of the workbench, Su Mo patiently completed every step.

From the preparation of sulfuric acid and nitric acid, to phenol disulfonic acid!

Every step, watching the teaching screen on the TV repeatedly, Su Mo tried his best to do the best!

As the prepared nitric acid is passed into the phenol disulfonic acid at the end, after the nitration reaction is completed, fresh picric acid is released!

This time, Su Mo looked around again and finally showed a satisfied expression.

【Picric Acid Dynamite - Trinitrocresol (excellent)】

Description: A strong explosive made by the entry-level craftsman "Suma". It is insoluble in carbon tetrachloride, slightly soluble in carbon disulfide, soluble in hot water, ethanol, ether, and easily soluble in acetone, benzene and other organic solvents. The preparation method strictly follows the scientific concept, so it has reached the excellent level.

Properties: melting point 121.8°C, boiling point: >300°C (explosion)

Special ability: Stability: In the process of completing the preparation, it is scientific and reasonable, which increases the stability of explosives. (It will never explode below 300 degrees)

Evaluation: Good order, everyone is happy!If it's not good, the whole village will have a feast!

"It takes 300 degrees to explode, although exploding crossbow bolts are a thing of the past, but it is the most suitable for making explosive kits!"

Looking at a kilogram of picric acid explosives in front of him, Su Mo gently took a small basin and put all the picric acid crystals into it.

For the next half a day, sitting in front of the workbench, Su Mo tirelessly repeated this boring process.

Every time Sumo wanted to give up, he would feel inspired to see more and more yellow crystals piled up in the corner!

Five kilograms of toluene, plus all the saltpeter looted earlier, produced a total of 30 kilograms of picric acid.

In conversion, it is a full 60 catties of explosives!

这些分量，苏摩打算做出3个10斤，5个3斤，15个1斤炸药包。

The former is used to destroy enemy buildings, while the latter is used as a weapon for fixed-point use!

In daily movies, you can often see dynamite bundles tied like quilts.

This kind of explosive package is called group charge. It uses bulk powdered explosives, spreads them among cloth and paper, wraps them up like a package, and then binds them horizontally and vertically with ropes.

Cut the moldy bed sheets that were used to hold things into pieces, and tore off the notebook paper brought out from the ruins.

Put the picric acid into it according to the proportion, wrap it up, wrap it with cloth, and finally wrap it with scotch tape. The simple picric acid explosive bag is made.

In the middle of the dynamite bag, Somo put the black powder used to ignite the dynamite bag and fixed it.

At this point, everything was ready, except for the last fuze to be ignited!

There are many types of fuzes, which are divided into trigger fuzes, proximity fuzes, weekly fuzes, time fuzes, command fuzes and multiple choice fuzes.

"Hey, the manufacturing process of the fuze is very complicated, and there are still many things needed, but..."

"I have a system!"

Thinking of the system, Su Mo suddenly felt refreshed, laughed twice, concentrated his thoughts, and summoned the system interface.

After clicking on the creation interface, Su Mo said softly:

"System, make the simplest trigger fuze, the cheapest one"

[The need for creation was detected, the mine triggered the fuze was retrieved, and the creation point was required to be 90 points]

"The mine triggers the fuze? What?" Seeing the system prompt, Su Mo curiously clicked on the card of the mine triggering the fuze.

A line of description was neatly written on the card:

The oldest landmine triggers the fuze. The firing power comes from the gravity of the falling stone. The trigger mechanism is composed of iron needles, rotating steel (iron) wheels, falling stones, flints and pulling ropes.

When setting, the two ends of the rope are tied to the falling stone and the steel (iron) wheel respectively, and the rope is set as a trip wire, and then the falling stone is placed in a high place.

When a person or animal trips the rope, the falling stone will fall from a high place. When falling, it will drive the steel wheel to rotate, rub against the flint to ignite, ignite the gunpowder fuse, and ignite the charge of the mine through the fuse.

"1560? Is this a trigger fuze from the [-]th century?" After thinking about it carefully, Su Mo gave up this ancient trigger device.

Although this device is cheap, its practicality is very low, especially in the column of trigger success rate, which is only 60%, which is extremely unstable.

"Search time after 19th century, the cheapest trigger fuze"

[Creation needs detected, mechanical depressing fuze retrieved, 99 points of creation required]

"Okay! That's what I want!"

Hearing that the price of depressing fuzes was not as high as a bowl of mutton steamed buns and two meat buns, Su Mo's eyes lit up, and he exchanged 5 depressing fuzes without hesitation.

After 495 survival points were deducted, a green ray of light scattered out, and he began to paint and draw on the workbench in front of him!

The green frame structure like 3D printing gradually began to take shape, and after three to five seconds, five disc-shaped devices slowly formed.

From this perspective, Sumo can clearly see the production process of each component inside, as well as the principle and method of triggering.