Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

The scraping operation lasted for more than an hour, with reddish-brown powder falling in a steady stream.

Most of them fell to the ground, while a few drifted in the air.

It carried a strong, distinctive fishy smell, a mixture of metal and dust.

Having collected enough, Gu Lang returned to the cafeteria with several large bags of rust.

Next comes the tedious and boring grinding process.

Fortunately, grinding rust powder is much safer than grinding magnesium powder.

He can unleash his full potential and achieve miraculous results.

After removing impurities with a flour sieve, Gulang obtained the required rust powder.

Magnesium powder and rust powder are mixed in a 9:20 ratio to produce magnesium hot powder.

Magnesium reaction is a more intense high-temperature redox reaction than aluminite reaction.

The temperature can reach up to 4500 degrees Celsius, which is 1500 degrees Celsius higher than that of the thermite reaction.

Gulang manufactures such dangerous goods.

The main purpose was to cut off the steel reinforcement column of the residential building in the town center.

Make sure the gas cylinders can collapse the building and bury all the raging mobs that come with them.

He wrapped the magnesia powder in refractory material to form long strips, ensuring that it could be tightly attached to the steel column.

The refractory material is made from the refractory bricks of heating chimneys. The bricks are crushed into powder, mixed with mud, and then solidified and shaped.

After finishing these tasks, Gu Lang picked up his notebook and checked off a box.

"The gas, decoy, and magnesia are all ready; all that's left is the detonation device."

After searching for inspiration throughout the scenic area, he found several alarm clocks in his dormitory.

This is a loud metal alarm clock, perfect for those who love to stay in bed.

It is powered by a single AA battery.

Gu Lang immediately had an idea and opened the battery cover.

Then cut a piece of plastic film and use it to secure the positive terminal of the battery, causing the second hand to stop rotating.

After tying the fishing line to the hole in the plastic sheet, Gu Lang fixed the other end of the fishing line to the wall with a nail.

I tested it, and the tripwire trigger works without any problems.

He then attached a trigger switch to the metal bell, which controlled an extremely simple circuit.

It consists of two 18650 batteries and a section of hair dryer heating element, with a cotton ball tied to the heating element.

This way, you only need to set the time interval between the clock and the alarm in advance.

It will automatically enter a countdown state after the enemy triggers the tripwire and connects the battery.

Then the alarm clock rang, and the switch was activated.

The heating element can ignite a cotton ball, which in turn can ignite gas and cause an explosion.

After securing the alarm clock and other accessories with tape, a time-delay detonation device is complete.

Gu Lang named it "Trip-Down Iron Box".

Everything is ready; we're just one step away from the final push.

While there was still time, he collected useful supplies from within the scenic area.

After packing everything up and getting into the car, I also adjusted the tire pressure to ensure I was in the best condition for evacuation.

Then we returned to the mountaintop and took one last look at the situation in the town.

The "sacrifice" ritual had only been going on for less than a day, and the berserkers were still relatively satisfied.

Most of the wandering berserkers we see are in a relatively calm state.

The demolition operation in Gulang officially began at midnight.

He first went to the safest northwest corner and carefully used duct tape to seal the gaps in the doors and windows of the shops on the first floor of the self-built house.

The shop is 3 meters high and has an area of ​​about 120 square meters.

The weight of each cubic meter of liquefied petroleum gas is approximately 2.35 kilograms.

A full 15-kilogram gas cylinder can release approximately 6 cubic meters of gas; three cylinders would release 18 cubic meters.

After release, the concentration reaches the maximum potency range of 4% to 5%.

After setting up the "tripping iron box", Gu Lang gently turned the gas cylinder valve slightly and slowly retreated.

Then they sealed the gap in the door with tape, leaving only a small opening for placing the fishing line.

He then went to the innermost room on the roof and placed the loudspeaker in the window.

This "Thunder King" can insert a TF card and play the files stored on it.

Gu Lang had already recorded audio files inside; the first three hours were blank, with no sound.

Three hours later, he began to let out screams, which he himself sang with great passion.

Although the acting wasn't realistic enough, it was enough to attract the attention of the extremely sensitive berserkers.

Turn on the power to the loudspeaker and turn the volume up to maximum.

Gu Lang closed the door and blocked it with various odds and ends.

On the way downstairs, obstacles were constantly placed on the stairs.

Extend the time it takes for the berserkers to go upstairs as much as possible to increase the number of kills.

After returning to the first floor and hanging up the fishing line, I left the scene.

He walked down the sewer to a residential building near the town center, but did not immediately seal the windows with duct tape.

Instead, we went to the middle area of ​​the first floor of the residential building, where there are four thick I-beam columns.

He found tablecloths, cardboard boxes, curtains, and anything else that could block out the light to cover the surrounding area.

Magnesium thermoelectric reactions produce a dazzling incandescent light.

Because it is an unobstructed point light source, its instantaneous brightness can even exceed that of the sun, making it extremely conspicuous in the dark.

Gu Lang turned his flashlight to its brightest setting and went outdoors.

After confirming that there was no light leakage, they returned to the building.

He took out a long strip of magnesia and attached it tightly to the steel column at a 40-degree angle.

Then remove the potassium nitrate powder used as a combustion aid and insert the paper package into the magnesia-thermal agent.

Insert a small section of magnesium strip, light it with a lighter, and run away quickly.

Even though I covered my eyes with my hands, the intense light still penetrated my palms and eyelids.

The retina was stained blood red.

Gu Lang did not observe the magnesium thermal reaction with the naked eye.

This is not only because it is glaring, but also because it is rich in high-intensity ultraviolet rays.

It can cause permanent burns to the retina in a very short time, leading to severe vision loss or even blindness.

During daytime testing, even in outdoor environments.

Using far less magnesium thermoplastic than it does now, it still left a white spot of light in his field of vision that wouldn't dissipate for hours.

A few minutes later, Gu Lang opened his eyes again.

The steel pillar in front of me glowed red; it had been cut in half.

Then three more flashbangs went off in the residential building, and two more steel pillars were broken.

Only one branch remained intact, but it was severely damaged.

Gulang has exhausted the magnesium thermoelectric agent, and there is not enough time.

He stopped worrying about it, since one pillar couldn't maintain the balance anyway, so it wouldn't affect the overall situation.

He climbed up the ladder to the rooftop platform and turned on the second "Thunder King" loudspeaker.

The audio files on this device are slightly smaller, and the blank time has been shortened to one hour.

After hiding the ladder, he returned to the first floor and set up various obstacles along the way.

There is a shop at each of the three corners of the residential building, with an area of ​​40 to 50 square meters.

Gu Lang set up three "tripping boxes" and then turned the gas valve halfway open.

After connecting the tripwires, he crawled back into the sewer.

I checked the time; there were only 50 minutes left until the first horn sounded.

The task was completed 10 minutes faster than expected.

Gu Lang let out a long breath and quickly returned to the small wooden boat.

At 3:10 a.m., he returned to the mountaintop after completing the "Ironman Triathlon".