"Fly, fly, hahaha!"

As the goblin airship slowly took off, Emma laughed excitedly on the deck, then spread her arms and ran as fast as she could on the deck, like a butterfly fluttering.

"Emma, be careful, don't run so fast!"

Qin Haiyan said a few words, but Emma didn't fully sound it, at this time, Emma was completely a child who had found a fresh toy, and the excitement came up, and many words naturally didn't listen.

Chen Nai understood this, so he didn't stop her.

"Let her go, have a good time, life is to enjoy more different pleasures, and it is also a rare experience to be able to fly into the sky."

Soaring in the sky, this was a dream of many people a long time ago.

Whether it is a high river or a dangerous place, you can use your own feet to go to it, use your hands to conquer it, even the ocean, with the development of science and technology, most of the world's sea areas, can be unimpeded, can also go deep to the bottom of the sea thousands of meters.

But the high altitude is difficult to conquer, and it was not until the birth of modern airplanes that people's dream of flying was realized.

And in just a few hundred years, it has transitioned from airplanes to spaceships, of course, space exploration is still in its infancy, and at present, it can only go around a few nearby planets and take pictures.

Flying is such a thing, in fact, Chen Nai also longed for it.

Well, once, because the reality was cruel, for him, flying was a distant thing, because he himself was afraid of heights.

When he stood on the fourth floor and looked down, he was already so nervous that his palms were sweaty and his feet were weak, so Chen Nai had never even experienced such a thing as taking a plane.

Today, however, he experienced something different, flying in an airship.

It's a bit strange that now Chen Nai is not afraid and worried at all, and he doesn't even feel a little nervous, he is very relieved.

This may have something to do with the smooth flight of the airship, or maybe it is because many people around you can fly, and if something really happens, you will be fine.

Or maybe it's because I've become a cat, and I've been completely changed physiologically.

There should be another fundamental reason, I have become stronger.

With his current strength, he can't fall to death at a height of several hundred meters, so he doesn't need to worry about anything at all.

"How high can this goblin airship fly?"

"I don't know!" Add took out his wisdom tome, looked at it and continued, "According to the data left behind, the goblin airship can fly to an altitude of 20,000 meters, and the flight speed can reach 800 kilometers per hour. ’

Eight hundred kilometers per hour, of course, this speed is not slow, after all, the goblin airship is a behemoth, and the goblin makes it look like a small aircraft carrier.

Not only are there huge decks, but there are also three levels of cabins that can be loaded with a whole bunch of stuff.

Although its ascent speed is relatively slow, and the flight speed can only increase slowly.

"That sounds good, but there's something I'll tell you."

"Master Cat, you say, I remember!"

"When you go back, you study it and try to make the goblin airship invisible in the eyes of others."

"Invisible!"

Chen Nai's words made Eddie think of something instantly.

"Yes, it's stealth, this goblin airship doesn't take off and land fast, and it has to slow up speed when flying in the air. Although safety can be guaranteed to a certain extent at an altitude of 20,000 meters, in other cases, the safety is too low. ”

"If there is an invisibility function that can make the goblin airship invisible anytime and anywhere, then the safety factor will naturally be greatly enhanced, and there will be sufficient protection, you say yes."

"Yes, that's right!"

For everything Chen Nai said, Eddie would agree with it, and oppose that it was completely non-existent, not to mention that what Chen Nai said was completely right.

At this stage, the safety factor of the goblin airship is very low, although at an altitude of 20,000 meters, even a god-level powerhouse basically has no way to take the goblin airship, and there are very few means to attack, but it is not completely impossible.

But if the goblin airship can be invisible, then the security aspect is even more guaranteed, and the most important thing is that when the goblin airship is attacking, it is also completely invisible, and the high-altitude bombardment is carried out......

Valen couldn't help but shudder just thinking of that kind of picture, this kind of attack is simply incomprehensible.

"Invisible, invisible......"

Add is now completely immersed in thinking, thinking about how to make the goblin airship invisible, if the goblin airship can be invisible, then the tank can also be completely invisible, this is definitely a terrifying thing.

But how?

Eddie thought about it for a long time, and he didn't have this clue at all, the ability of invisibility is only available to a very small number of special races, and although there is also the magic of invisibility in magic, only illusionists can.

But now there are only two or three illusionists, whether it will be invisible or not, even if you can learn magic, but if you want to study the corresponding magic circuit, it is also a difficult thing to do.

"It's hard to do, the invisible magic is basically lost now, and there's nowhere to learn it."

Anna found this difficult to do, knowing that even their elven race, the place called the origin of magic, did not have invisible magic.

"Actually, it's not difficult at all, invisibility is to deceive the eyes, our eyes can see all kinds of things, that's because the light is refracted and projected onto the retina of the eye, so we can see things."

"Light refracts, retina ......"

Anna said that she was confused when she heard these new terms, and she was completely confused.

Eddie and Hine said that they had long been accustomed to this.

Although the general meaning was understood, it was still difficult to understand what Chen Nai said, so Chen Nai had to be more straightforward.

"Well, to put it simply, as long as you can give all the light to the reflection point, you can be invisible."

"Oh, I see, but it's not so easy to reflect all the light."

It's quite simple to say, but if you do it, it's very difficult, but you've already pointed out a general direction, and it's much easier to study.

"Well, it's not completely necessary to reflect all the light, the light is also divided into many kinds, the light that the animal's eyes can see, there are only so few, as long as these kinds of light are filtered and reflected, then in the eyes of others, this is invisible."