For the people in the main world, the "technological products" of Tiandao Palace have brought them an unparalleled experience.

However, to Fang Zheng, the bizarre ideas of the people in the main world are equally interesting.

"You know what? Eriri, I feel like I'm witnessing history right now."

Fang Zheng stood in front of a Transmutation Mage's booth with his hands behind his back, looking at the huge monster in front of him, and couldn't help but sigh. The appearance of this huge monster was like a rectangular box, with five pairs of road wheels at the bottom and a small magic crystal turret installed on top - to put it bluntly, this was actually the prototype of the main world tank.

Fang Zheng had seen records and descriptions of the inventions of "the first telephone", "the first television", "the first airplane" and "the first car" in his world in history books, which made him very excited. Unfortunately, in his world, Fang Zheng was just an ordinary game designer, and he had no chance of creating history.

But it’s just as fun to witness history.

Although this tank has many flaws, such as it has no tracks and the space inside is very small, because the inventor simply dismantled a small defensive turret and installed it on this magic vehicle. Even this magic vehicle cannot turn freely, but Fang Zheng still watched it with relish.

At the same time, he had to admit that magic was not like science. After all, it had to be based on science. For example, the magic car was running at its current speed and on an uneven ground. In addition, its body was made of wood. The huge force generated when running was enough to crush the car into pieces by the steel turret.

However, after releasing the "Reinforcement Technique", this car body made entirely of wood was not only able to withstand the galloping of steel turrets weighing several tons, but was also able to withstand ordinary bow and arrow and sword attacks...

If this happened on Earth, it would be enough to make a large group of physicists question their lives.

"How do you feel?"

Fang Zheng watched the "tank" turn its gun barrel and smash a target in the distance into pieces, then he turned around and looked at Eriri and asked curiously - this time when he came to participate in the magic exchange meeting, he brought Nymph and Eriri, the former wanted to see the results of his own manufacturing, and the latter did not need to take the exam.

By the way, Asuna and Kuroneko are currently staying in Tendao Palace and studying hard.

This is normal. After all, when you go out and play for a year, will you still remember what you learned a year ago?

In order to avoid messing up the exam, the two had to give up the idea of ​​participating in the magic exchange meeting and started to make up for the lessons in a depressed mood.

Fortunately, there is Sakura Ji in the Tiandao Palace - although he looks like a junior high school student on the surface, he has a regular teaching diploma after all, so it should be no problem for him to give the two of them special lessons.

"It's a complicated feeling... To be honest, I didn't expect magic to be so advanced."

Eriri's expression was as complicated as her tone, but Fang Zheng could understand her mentality at the moment. For Eriri, the main world was actually a "medieval world that looked full of magic." Magic might be interesting, but the people here had no internet, no TV, and even no radio. Their weapons were also very simple and backward, which made Eriri, who came from modern society, feel a little proud.

After all, even without magic, humans can still live a good life. However, in Eriri's opinion, the lives of most people in this world are obviously not that good.

But when Yinglili followed Fang Zheng around the magic exchange meeting and saw things like "automatic seeding dolls" and "fast portals", she was no longer so confident about her ideas.

After all, even Eriri knows that there are some things that even in her own world, she may not be able to create them even after hundreds of years.

However, a prototype has already been formed here.

"This is not surprising. Humans on Earth have gone through thousands of years of development to transform from primitive people who ate raw meat and drank blood to what they are today."

Fang Zheng seemed very calm.

"To be honest, I really look forward to seeing what the world will be like in a thousand years... provided they don't commit suicide again."

That's right, the biggest threat to this world right now is that those mages are too easy to commit suicide. In fact, in essence, these mages are not much different from the many crazy scientists in Fang Zheng's world. But the problem is that those crazy scientists often have crazy ideas, but lack the power and resources to turn them into reality. On Earth, scientific research has many limitations, such as resources, money, political support, and government agencies that can seal and shut down research facilities at any time.

However, in this world, those crazy mages not only have ideas, but also have the ability to realize them with their own hands...

More importantly, there were obviously no human rights or environmental organizations in this world that would impose sanctions on these mages. If there really were a group of idiots holding signs to protest at the Mage Tower, being burned to death would be the foreseeable end for them.

You can stop a wizard from taking human lives, but you can't stop a wizard from studying magic.

Unless you are tired of living.

“Boom boom boom!!”

Suddenly, at this moment, the sound of muffled salutes rang out, interrupting their conversation. Fang Zheng looked up and saw bursts of bright red fireworks in the sky not far away.

"Mr. Fang Zheng, is there any activity here?"

"Hmm... I remember the head of the Shaper Department seemed to have said that he would present his new discoveries at this magic exchange meeting..."

Fang Zheng thought about it for a while, and then made a decisive decision.

"Let's go and have a look."

Having been in the main world for such a long time, Fang Zheng felt that nothing was surprising to him anymore. However, when he arrived in front of the booth of the chief of the Transfiguration Department and looked at the huge cannon barrel that was dozens of meters high and the cannonball that looked like a missile standing next to it, Fang Zheng couldn't help but exclaim "I++".

"Ah, Mr. Fang Zheng, welcome."

Seeing Fang Zheng coming, the head of the Shaping Department also walked over and greeted him with a smile.

"Are these two beautiful ladies your companions, Mr. Fang Zheng? That's great. It reminds me of my youth... Well, let's not talk about the past. What do you think of me?"

"This is……"

Fang Zheng looked at the barrel, then at the "missile" next to it, exchanged a puzzled look with Ying Lili, and then asked curiously.

"May I ask...what is this used for?"

“Explore the sky!”

"Sky?"

“That’s right!”

In response to Fang Zheng's question, the head of the Shaping Department nodded vigorously.

"What is beyond the sky? Aren't you curious about this secret? Now, what I have to do is to explore the secret of the top of the sky! Next, I will put this cabin into the barrel of the gun, and then shoot it directly into the sky like a cannonball!"

"This... doesn't seem possible?"

Hearing this, Ying Lili finally couldn't help but ask.

"Of course, I've tested it before and found that the thrust from the launch itself isn't enough, but luckily I have a new idea."

As he spoke, the Chief of the Transfiguration Department patted the "missile" next to him.

"Look, I added several layers to the back of this cabin, and these layers are etched with powerful explosion arrays. When the cabin is launched into the sky, once it can no longer rise, I will detonate the magic array on the bottom layer to push the cabin forward! In this way, as long as I maintain the supply of magic power, I think I can definitely fly into the sky!"

You figured out this fucking multi-stage rocket propulsion?

Staring at the head of the Shaping Department in front of him in amazement, Fang Zheng felt that he had nothing to say. Ying Lili was also stunned for a moment, and then suddenly remembered a question.

"Well, how do you get down after you go up there?"

"Isn't this simple?"

Facing Eriri's question, the head of the Shaping Department remained very calm.

"I have already set up the plane coordinates in my own Mage Tower. If anything unexpected happens, I can just teleport back to the Mage Tower."

If the aerospace technology personnel on Earth heard it, they would be so angry that they would die.

"But...why use a cannon?"

Faced with the answer from the Chief of the Transfiguration Department, Eriri was speechless for a moment. In the end, she had to ask another question that puzzled her, and the Chief of the Transfiguration Department just laughed.

"Isn't this nonsense? Without a cannon barrel, what if the shot goes astray?"