Half a month has passed in the blink of an eye.
For the past two weeks, Chu Jinjin has hardly left her home and has not seen anyone, including Liu Shi and Zhan Qin.
Emotions will only slow down the pace at which she accomplishes great things.
Upon learning that she had finished her seclusion, Jiedu and Qingxiao rushed over immediately.
"This is called an incendiary bomb. You light the fuse with a tinderbox and throw it into a crowd." Many things common in the post-apocalyptic world are not here. Fortunately, there is saltpeter, the main ingredient. Chu Jinjin thought it over and over. Of course, the bomb is the most important, but other things are also needed.
For example, incendiary bombs.
When the fighting really starts, the zombie army will definitely be at the forefront, with the living covering the rear. The incendiary bombs are specifically designed for them, or more precisely, for the warhorses.
No matter how well-trained a warhorse is, it is naturally afraid of fire. If it is burned, it will be frightened and then it can concentrate on dealing with the zombie army.
Jie Du and Qing Xiao exchanged a glance.
I know what it means, but I don't know how it burns.
The three of them soon arrived at a specially designated open area behind the mountain.
Chu Jinjin personally lit the fuse and threw it hard into the chaotic pile of rocks in front of her.
Incendiary bombs can't really compare to those in the apocalypse; they're more like Molotov cocktails.
A muffled explosion rang out, and saltpeter mixed with wood and pine resin flew everywhere—pine resin was the main component here, not as good as gasoline in later times, but it was still quite flammable, burning for several tens of seconds before going out.
If thrown at a person, it will quickly set their clothes on fire, and the food supplies will be even more likely to catch fire.
Jie Du's eyes lit up: "Good stuff!"
The people of the Northern Desert are skilled in riding and archery, and almost everyone has a warhorse. With a horse comes the need for saddles and other easily flammable items, which will have a different effect.
Qingxiao was drawn to something else; she recognized the piece of fabric.
Before Chu Jinjin went into seclusion, she asked for a lot of random and unrelated things, such as a full ten feet of fabric, enough to make several sets of clothes.
"What is this...?" Qingxiao picked up the fabric, which she couldn't quite describe. All she could say was that the embroidery was terrible, so coarse it was unrecognizable. It was only slightly better than what a blind person could do. Any grown man could have done a better job.
Strangely, the fabric was barely cut; it was pieced together to form a circle, with several ropes hanging below.
It looks a bit like a hot air balloon?
Chu Jinjin smiled and asked her to help unfold it: "What were you most worried about when you were in the hot air balloon?"
Qingxiao blurted out, "It will fall."
Hot air balloons are indeed amazing, but the feeling of being off the ground makes people feel extremely unsafe, especially during the initial testing phase. They fell several times, and countless goats died from the impact.
Of course, nothing was wasted; it was eventually turned into delicious mutton.
But what about people?
She was involved in the entire hot air balloon design and was very aware of the risks involved, such as the weather, the possibility of running out of fuel, and the risk of being hit by enemy fire. Once the fire was extinguished, the hot air balloon would lose power and land.
No one can escape being thrown from such a height.
"This thing is called a parachute." Chu Jinjin put a lot of effort into making it. To put it simply, a parachute uses air resistance to increase drag. The greater the drag, the safer it is. However, fabric that is too stiff is not easy to open, and fabric that is too soft does not provide enough drag. Later, when she decided to give up and hand it over to Jie Du for research, she suddenly thought of a solution—using two layers of fabric.
A poor goat was brought in as an experiment.
Chu Jinjin took matters into her own hands, tied the rope to the goat, and after confirming it was safe, lifted it up and threw it off the cliff.
The goats bleated in alarm.
Just as she expected, the parachute opened in the wind, but it became a messy mess. Fortunately, it suddenly unfolded when it was about ten meters away from the ground.
Then, it landed smoothly!
Jie Du and Qing Xiao's mouths were agape, one wider than the other.
I understand the principle, for example, if they practice martial arts and need to fall in a special situation, they will open their cloak or something, but at such a height?
Below the cliff, a goat, its head covered in a tattered cloth, leisurely grazes on the grass. This place is rarely visited by humans, and the wild grass is especially lush.
Qingxiao felt instantly safe and murmured, "So, I'm not afraid of falling anymore."
She realized the problem earlier, but it's alright. Those who can get on hot air balloons are all quite skilled, and they can control them from the air.
No wonder it's called a parachute.
These are actually nothing.
Chu Jinjin's masterpiece is yet to come.
She took out an iron pipe she had brought from the capital, which she had specially commissioned a blacksmith to make before her departure. It had been modified now, with a handle added. In front of the two of them, she added purified saltpeter into it, pressed it down hard with a smaller wooden stick, and then took out a tinderbox, indicating that Jiedu should light it himself.
Jie Du was baffled: "Burning iron pipes?"
He could understand the first two: the incendiary bomb was a modified bomb, and the parachute was somewhat similar to a hot air balloon. But he really couldn't figure out how this iron pipe filled with saltpeter was used.
Chu Jinjin then attached smooth pebbles to the muzzle of the gun and urged smugly, "Hurry up, I'll show you what a real weapon is right away."
Jie Du smiled indulgently and lit the tinderbox.
A few seconds later, he realized why there was an extra thing below; it must be for heat insulation. Just as he was thinking this, the iron pipe suddenly exploded when it got hot.
Qingxiao was startled: "Ah, how did it explode...?"
Before he could finish speaking, the small stone blocking the iron pipe spouted out, moving so fast it was almost invisible, and in the blink of an eye it struck the stone in front of him.
Qingxiao: "......."
That's right, this is a musket.
Chu Jinjin, a skilled cook, couldn't cook without rice. She understood the principles of firearms, but she simply didn't have any materials. So she made a simplified version, mainly to help Jie Du understand the principles.
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