Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

(Please note: This chapter is for general knowledge purposes only, and all content is from publicly available online sources. Many practical details have been omitted, and the results are extremely difficult to reproduce. Please do not attempt to imitate this; I am not responsible for any consequences arising from such omissions.)

After a tremendous amount of effort, Gu Lang finally obtained a sufficient quantity of key raw materials.

He stopped the dangerous electrolysis work, had Blanc bring all the Molotov cocktails, and began the improvement work.

The two removed the rag from the bottle opening, wrapped the sodium ball in absorbent cotton, and then attached it to the surface of the bottle with waterproof tape.

"This looks much better now, and the Molotov cocktails can be thrown out and used directly."

"The bottle will automatically burn after it breaks, and it won't be affected even if it rains." Gu Lang nodded in satisfaction.

"But what if the beer bottle breaks and the waterproof tape is still intact? That would be a disaster."

Bai Lang picked up the bottle and checked the seal of the tape.

"It's okay, just stick a few more sodium balls in different places and add a little water to the bottle."

Surely no one can be that unlucky? I think you should be more worried about storage.

"Don't accidentally break it and burn your own people," Gu Lang said seriously.

"Okay, I'll remind everyone in the family later, and also wrap all the Molotov cocktails with bubble wrap."

The two spent a day completing all the improvements to the Molotov cocktails.

The original Molotov cocktails were filled with 92-octane gasoline.

Gu Lang instructed Bai Lang to pour the precious fuel into a gasoline drum, reseal it, and store it away.

The flasks were filled with crude gasoline obtained through rudimentary oil refining methods as a substitute.

Under Gu Lang's guidance, Bai Lang added engine oil, rubber, flour, sugar, sawdust, paint, and other ingredients to the bottle.

These materials can increase flammability and adhesion, with effects similar to those of military napalm bombs.

After the project was completely completed, Bai Lang voluntarily gave several of the Molotov cocktails to Gu Lang.

Gu Lang naturally accepted it without hesitation, taking it as his reward for his hard work.

On December 31, Gu Lang handed Bai Lang a piece of paper.

Tell the other person that you are going to teach them two special elixir formulas as a New Year's gift.

Tell him to prepare some raw materials first, and then he can refine the pills together.

Although Bai Lang jokingly said that Gu Lang had read too many fantasy novels, he still followed the instructions.

They dragged a small cart to the warehouse and brought back the supplies listed on the note, the most important of which were fireworks shells.

After preparing for firefighting, Gu Lang carefully cut open the outer packaging and took out the black powder and green fuse inside.

"Are you planning to make that homemade gun again?" Bai Lang looked at the firework shell that had been gutted with heartache.

"Making guns requires seamless steel pipes. If you have any here, I can actually make one for you."

"I really don't have any. If I had met you sooner, I might have stocked up on them." Bai Lang looked regretful.

"You can't stockpile any. High-strength seamless steel pipes of special specifications are all pipe products, which are difficult for ordinary people to buy."

Furthermore, using it as a gun barrel is not so simple; to achieve accurate shooting, rifling needs to be machined inside.

This means you also need a machine tool and a skilled operator.

If you ask someone else to do the processing, you're basically giving the police a commission.

Gu Lang took out his phone and pulled out a screenshot from his photo album.

He told Bai Lang about a news story about a military enthusiast who was arrested for placing an order online.

The chat logs show that this person placed an order with a hardware processing factory.

The requirement is to process a metal tube with a diameter of 12.7 mm.

The specific parameters are: internal spiral reinforcing ribs, left-handed, 10.6mm coil, 4.5mm coil angle, 0.48mm negative line, and 130mm length.

The material is chromium-molybdenum alloy steel, which must be 4150, manufactured by cold forging process, with chromium plating inside, high frequency quenching, and blackening treatment on the outside.

"This is fucking incredibly detailed." Bai Lang burst out laughing after hearing it.

After telling the joke, Gu Lang finally revealed his purpose.

He wanted to teach the other party how to make a homemade grenade.

Gu Lang dictated the process while personally demonstrating the specific steps to Bai Lang.

First, prepare an ordinary plastic water bottle and fill it halfway with gunpowder.

Add cotton wool, sugar, pebbles, and iron pieces until the bottle is full.

Then pour gasoline into the bottle to soak the cotton and gunpowder, and drill a hole in the bottle opening using a mineral water bottle cap.

Then remove the match head, crush it, and fill the gap at the bottle opening.

The fuse uses the green hard core of a firework directly, with several sections joined together to leave enough length and buried deep inside the bottle.

"That completes the process. When enemies attack, simply light it and throw it."

This formula comes from a training manual for US agents and is based on a weapon actually used by terrorists in the Western Regions in the 90s.

The kill zone was approximately 20 square meters, and it had caused great casualties to local military and civilians.

Please remember to remind your family members to lie down when dealing with a violent attacker, and to be careful not to get injured by shrapnel.

After the first recipe was taught, Bai Lang quickly and successfully replicated a homemade hand grenade because of its extremely simple structure.

"My disciple has good comprehension; I am very satisfied."

"Thank you, Master, for teaching and guiding me."

After exchanging a few words of banter, Gu Lang pulled a second slip of paper from his pocket.

Tell Bai Lang to go to the warehouse and find the next batch of raw materials.

The main raw material was the aluminum rod that Gu Lang asked him to find at the Nanshan Aluminum Factory after they met in Longkou City.

The two men used a file to cut the aluminum rod into small shavings, preparing to make aluminum powder.

Aluminum powder is a flammable and explosive substance, and it becomes extremely dangerous when suspended in the air at a certain concentration.

Even a tiny static spark could trigger a violent explosion.

Inhaling aluminum powder can easily damage the respiratory system, and it will deteriorate when exposed to moisture.

Therefore, Gulang chose to produce aluminum powder using ball milling in a closed environment.

To this end, he had Bai Lang forcibly requisition solid fitness handballs from his elders as tools.

The heavy steel ball, along with aluminum shavings, was thrown into a sealed plastic bucket.

By continuously shaking the plastic bucket and rolling it to grind it, a large amount of aluminum powder was quickly obtained.

Then thoroughly mix the black powder obtained from dismantling the fireworks shells with aluminum powder.

Then cut a plastic water pipe into sections, each 10 centimeters long.

Seal the bottom with wax and pour the mixed powder into the water pipe.

Finally, insert a fuse and seal the top with wax. A simple flashbang is now complete.

Because the two ends of the plastic tube are sealed with wax, it will melt on its own when ignited.

It can maintain airtightness without affecting the light emission and heat generation of the internal materials.

"How bright can this thing be when it's lit?" Bai Lang held a homemade flashbang in his hand and weighed it in his hand.

"It will be so bright that you'll feel like the sun has fallen to the ground, so please resist the urge to look."

In night battles or when surrounded, throwing one can buy you at least ten seconds.

Gu Lang pulled Bai Lang outside, and the two put on sunglasses and placed a test in the open space.

The moment the fuse burned out, Gu Lang immediately turned his head away and closed his eyes.

With a loud "boom," a burst of extremely bright white light exploded on the ground.

"It's alright, it's quite bright."

Gu Lang turned his head back and slowly opened his eyes.

"It's more than just okay, I feel like I've been blinded by its brilliance!"

Bai Lang, who was standing to the side, had already taken off his sunglasses and was rubbing his eyes.

"I've taught you both of these formulas. From now on, you'll be the patrol personnel at the base gate."

Each person carries a hand grenade and a flashbang; they could be lifesavers in a pinch.

Gu Lang smiled and patted Bai Lang on the shoulder, helping him back inside.