Rebirth of the 1980s: The Military Industry Empire

"Little Qin, speaking of bulletproof vests, I also know a thing or two. Our country issues bulletproof vests to protect some important leaders. These vests are made of silk and nylon, and can only protect against shrapnel or handgun bullets. As for bulletproof vests that can stop rifle bullets, this old man has never heard of it before. Tell us about it," the old man said for the first time.

Wang Hai smiled. You brat, keep bragging! You dare to talk nonsense in front of the old man. Once the old man knows you're full of hot air, you can forget about ever setting foot in this house again!

He was smug in his heart, but said aloud, "Yes, Little Qin, I haven't even heard of it in America. Tell us about it."

"Yes, Grandpa," Qin Yang replied respectfully to the old man, then looked at Wang Hai: "Sea Turtle, since you're so eager to learn, I'll tell you about it."

Me, eager to learn? I'm a returned student; do I need you to lecture me! Wang Hai was furious, but he couldn't show it on his face, so he could only hold it in.

Pfft! Nie Xiaoqian laughed.

Nie Xiaoqian had never liked Wang Hai. He had the air of a high-ranking cadre's son, especially that self-righteous, condescending attitude that people found annoying. She liked Qin Yang the most. Seeing Wang Hai constantly belittling Qin Yang, she was dissatisfied. Now, seeing Wang Hai being put in his place, she was very happy.

Wang Hai's face turned even uglier.

"Speaking of bulletproof vests, we have to start with the godfather of bulletproof vests in the last century, Zeglen, a Polish engineer. As a clergyman, he also carried a sacred ideal in his heart. After witnessing the tragedy of Chicago Mayor Carter Harrison's assassination, he vowed to develop a sacred piece of equipment that could protect the world: the bulletproof vest. He tried various materials and finally decided to use silk. He visited many textile factories and found suitable silk weaves…"

"Little Qin, we want to hear about bulletproof vests that can stop rifle bullets. Don't tell these stories; it's a waste of time," Wang Hai said.

"No, this is important, Sea Turtle. You're a top student; why are you so impatient? Are you like this when you listen to lectures?" Qin Yang glanced at him, his eyes full of contempt.

"Why is this important?"

"This kind of bulletproof vest has created a stereotype for many people! Oh, do you understand stereotypes? It's…" Seeing Wang Hai's extremely ugly face, Qin Yang wanted to continue his Tang-style lecturing, but he was afraid of losing the interest of others, so he had to give up this little game: "Okay, let's continue. From the beginning, bulletproof vests have taken the path of using softness to overcome hardness, so they have many flaws. For example, even with Kevlar, it can't stop rifle bullets. If you want to stop bullets, you have to use hardness to overcome hardness."

"Use hardness to overcome hardness? Are you going to insert steel plates?" Wang Hai's tone was sarcastic. I thought you had some good ideas, but it turns out you're just inserting steel plates!

"That's right, early bulletproof vests used steel plates," Qin Yang said. "For example, during World War II, American bomber pilots each had an M1 vest. This thing had a layer of steel plate inside. However, the American crew members didn't appreciate it and often didn't wear the bulletproof vest, but instead sat on it. Sea Turtle, do you know why?"

"Because it's too heavy?"

"No, the M1 vest weighs 17 pounds 6 ounces. You're a Sea Turtle, so you should be able to convert it, right? Tell Grandpa how much it is in our domestic units, so Grandpa can understand."

Convert? How much is it? If Wang Hai were calm, he could quickly get the result, but now, Qin Yang was so angry that he was dizzy, and he couldn't calculate it in his head for a moment.

"15 jin," Nie Xiaoqian's mother said.

"Auntie, you're amazing!" Qin Yang gave a thumbs up: "That's right, it's 15 jin. It's not very heavy. They sat on it at the time mainly because they found that the threat mainly came from the fragments of anti-aircraft shells exploding, and it was better to protect their buttocks. However, this is for pilots. After all, they don't need to run. For infantry, it's cumbersome to carry it back and forth, which requires a lighter bulletproof vest."

"Little Qin, after talking for so long, you still haven't mentioned a bulletproof vest that can stop rifle bullets! Grandpa is still waiting to hear," Wang Hai countered again.

"It's coming soon," Qin Yang said: "Steel plates are too heavy, so material experts began to look for other methods. They set their sights on the aviation field and decided to use aluminum alloy. This thing is light, but the bulletproof effect is not very good, so they set their sights on another material, which is also very light, but very strong."

"Titanium alloy?" the old man said.

"Grandpa, you're amazing! That's right, what I'm going to say is titanium alloy!" Qin Yang flattered the old man again: "Ten years ago, the old Maozi created a titanium alloy bulletproof vest, model ZhZT-71, using OT4-1 titanium alloy…"

"Grandpa, don't listen to his nonsense! The old Maozi's equipment is top secret. Even the United States doesn't have this information. How would he know?" Wang Hai's voice was loud.

"Can you access the information from the United States? Do you know about the information in the Middle East?" Qin Yang glanced at Wang Hai again.

Wang Hai didn't speak. Of course, he couldn't access it, but how did Qin Yang access it?

"Little Qin has the opportunity to access it," the old man nodded: "Only the old Maozi can afford titanium alloy. After all, the world's main titanium mines are there. However, if we want this level of bulletproof vest, I'm afraid it won't work!"

In fact, even the old Maozi can't afford to equip it, and it's only used by elite special forces in the Afghan battlefield. Qin Yang had been to Iran, so the old man naturally thought that Qin Yang had learned about it in this way. This is not surprising.

It's good, but unfortunately we can't afford it!

"Yes, in my busy work at the factory, I also began to ponder and research new materials. After hundreds of failed attempts, I finally found a material that is not very heavy, but can also stop rifle bullets!" Qin Yang said.

"What?"

Except for Nie Xiaoqian, the others exclaimed. The old man's breathing became rapid: "Little Qin, you invented a bulletproof vest that can stop rifle bullets?"

"To be precise, it's a bulletproof insert. I made a vest and just put it in the vest," Qin Yang said.

"Four jin each, can be placed on the front chest. If the back is also placed, then it's eight jin," Qin Yang said: "However, the cost is a bit high."

"How high?"

"The cost is more than a hundred yuan."

"Much lower than the pension!" the old man said: "If it can be mass-produced, each of our southern combat troops will get one!"

"Little Qin, is there really such a thing?" Wang Hai would never believe it: "The United States doesn't have it, but you can make it?"

"Of course, it's on my motorcycle," Qin Yang said: "What the United States has, we must have. What the United States doesn't have, we must also have. Our Chinese nation is the smartest and most creative nation in the world!"