The extraordinary design of this idea made Zheng Fei's eyes light up at the same time, but he frowned slightly, he stared at those lines, and gradually, a trace of worry appeared in his eyes.

The idea of such warheads has not been unheard of in history, but it dates back to the 19th century, that is, 400 years later, when an English captain was colonizing India, he discovered a weapon used by the local aborigines - blowpipe arrows, which can effectively seal the air.

Later, a gunsmith modified it and it was adopted by France to produce a powerful bullet called the Mini round.

The Mini bullet is a revolutionary invention in the history of bullets, and its appearance also made long-range sniping possible.

It can be said that if the Mini bomb had been created in the fifteenth century, it would have been a terrible frenzy, and the army equipped with it was, without exaggeration, invincible!

However, there is a catch.

The Mini bullet is just a matter of concept, and the manufacturing process couldn't be simpler, and although the gunsmiths of various countries did not have da Vinci's unprecedented thinking, they would imitate it.

If the Mini bullet used in the battle is picked up by other countries and its mystery is discovered, it will not only mean that Zheng Fei's road to conquest will be difficult, but more terrifyingly, it will trigger a war that should have belonged to a few hundred years later, and the whole world will be unrecognizable.

Therefore, until Zheng Fei is strong enough, the Mini bullet cannot be taken to Europe, lest it be imitated.

However, it is perfectly possible to use it to fight Native Americans.

In the secret room, the lights and shadows flickered, and Da Vinci saw that he had not spoken for a long time, so he waved his hand and shook it in front of his eyes, and said, "What's wrong with you?"

He smiled, gave da Vinci a thumbs up, and said, "This idea is fantastic, Hans, immediately find a craftsman to modify the bullet, and try to change it to a hundred rounds first." ”

Hans took the drawings and glanced at da Vinci before leaving, his eyes full of admiration for this young man, for his magical creativity, but also for his meticulous logic that he should not belong to this age.

After that, Zheng Fei patted George's shoulder, and the guy was now stunned.

George has always thought of himself as a rare engineer, but he didn't expect that the teenage da Vinci would solve the problem perfectly after researching something that he had been researching for more than a month, which made the pride in his heart disappear in an instant.

The gap between ordinary people and geniuses is always so helpless, and da Vinci can make geniuses helpless.

Zheng Fei didn't stop long in the musty cabin, and took the two of them to the deck, facing the clear blue sky, and took a few deep breaths.

Climbing up the watchtower, he picked up the binoculars and searched for it as usual, but there was no shadow of the land.

Leonardo da Vinci stood next to him, always looking up at the sky as if in a daze, in fact, he was thinking about things, this little guy seemed to be idle for a moment, and began to think when he had nothing to do.

Zheng Fei was very curious about what this guy with an IQ of up to 200 was thinking, so he put his arm on his shoulder and said, "What about waiting for gold to fall in the sky?"

Da Vinci relieved himself, was stunned for a while, shook his head and said, "No." After a pause, he continued, "Captain, have you ever thought about flying into the sky?"

In fact, Zheng Fei especially wanted to say, I flew over.

"Of course I did. ”

"Then how can you fly up?" said da Vinci to himself, with a confused expression, as if he had returned to the state of a madman, which was the time when his brain was racing.

Zheng Fei wanted to call him and introduce him to the flight principle of the airplane, but after thinking about it carefully, he felt that it was impossible, because in this era, let alone a diesel engine, there is not even a steam engine, what is the basis for the operation of an airplane shelf? Is it by the hand of God?

Suddenly, he had a flash of inspiration.

It is not only airplanes that can fly, but also a very simple tool for making zuò - hot air balloons.

If the hot air balloon is made well, it can even reach an altitude of several thousand meters, with it, it can not only add one more unit in future battles, but also provide great convenience for exploring the new continent.

Thinking of this, the corners of his mouth turned up slightly, motioned for da Vinci to go down with him, and brought out a pot and a stove, and placed it on the deck.

"Hans, where's the fresh sardine you caught, bring me some!"

Hans puffed out his mouth and reluctantly came over with a bucket of dozens of fish.

"Didn't I tell you to catch a hundred each, that's all?"

"It's so hard to catch, it's so slippery that I can't hold it"

"Alright, take your group of sailors to practice for half an hour, don't think that Orion is born as sharpshooters. ”

"Whew. ”

After Hans left, Zheng Fei lit the stove unhurriedly, took a few sardines and threw them into the pot, and covered the pot.

Da Vinci looked puzzled, in his impression that everything Zheng Fei did was intentional, and he would never stew fish soup for himself for no reason.

Looking at his expression, Zheng Fei smiled and said nothing until the water boiled.

Da Vinci reached out to remove the lid and add salt, but was stopped by Zheng Fei.

"Don't you like to think about da Vinci, looking at this pot, can you think of anything?"

Da Vinci rubbed his smoky eyes, swallowed, and said, "I can imagine that the fish is almost cooked, and I haven't eaten anything other than bread in days."

"What else?"

"Hmm" da Vinci didn't understand what he was selling, his stomach rumbled, and he stared at the pot and sniffed the aroma wafting from it.

Zheng Fei raised his eyebrows and smiled slightly, it seems that this kid is not so scary that he can think of anything Cheng Dù.

He paused, pointed to the lid of the pot and nodded, "Why is this iron lid being lifted?"

"There's something down there~" Da Vinci replied easily.

[Thank you to the reader "Scavenging Old Farmer" for providing the concept of Mini Bullet, which is really knowledgeable and versatile (*^__^*) Everyone has their own specialty, if you have knowledge that you think can be added to the book, you can say it in the comments, but it's best to add it to the group, so as not to sink the post.

Another:It's expected to be on the shelves on July 1st,All the local tyrants who are ready to go and wait for the reward,Be sure to add the next group,The true love fans in the group are planning a big run,Ready to reward together one day after the shelves,Put this book on the homepage of the 24-hour best-selling new work list,The effect is more than the whole site!

I would like to say thank you to all my true love fans, in my most difficult time, you have been silently supporting me, helping me advertise and promote, and even sending me red envelopes in the group, Alipay transfers, etc.

In good conscience, I belong to the kind of person who attaches great importance to feelings, and I will always remember it (^?^*)

Take a bow!】