The chubby fingers landed in the middle of the circular jellyfish base pattern, and the corners of the old fat man Ducat's mouth showed a smug smile.

"Although the Jellyfish base is in a near-perfect defensive state, it does not mean that it is really completely perfect." Ducat's fingers were folded, his fist clenched, and he lightly tapped it twice.

"Its greatest weakness is at the top of it."

"No scan at the top?" Lena's eyes lit up.

"Yes." Ducatt was sure: "Of course! ”

Lena was stunned for a moment, grabbed a large handful of potato chips from the bag and stuffed them into her mouth, and said disdainfully: "What about teasing me?" ”

"Of course not, Miss Lena, don't worry, listen to me slowly." Ducatt took a puff of his cigar and said, "When Mailer designed this 'jellyfish' base, I said that he was inspired by the technology of the oldest Atlantean starship in Hermes, in fact, Hermes is not the highest god of Atlantis, he is just a guy who is one level higher than the suzerain, and the king of Atlantis, the destroyer, is a first-level person, equivalent to the high priest of the kingdom. In fact, it was a man who brought the Atlanteans to earth who was revered as the main god - Amun. La, alas, this man later disappeared and disappeared, and Hermes built the pyramid, supposedly to find his whereabouts. ”

"Give me another history lesson!" Lena munched on potato chips, seemingly uninterested in the history of these ancient kingdoms of Atlantis.

"I'm just talking about a foreshadowing." Ducat was quite patient and said tepidly: "According to ancient classics, in fact, the ancient kingdom of Atlantis was built on the basis of that ancient starship, which was a more huge alchemy ship, but after arriving on the earth, Amon converted it into a sea city, which condensed the most advanced alien ancient technology of Atlantis, and there is a thing called the 'Tree of Wisdom', which is said to be able to experience all the most powerful and complete civilizations and technologies of ancient Atlantis on this tree." After Amun's disappearance, Hermes only recorded a small part of the starship technology he knew, which was incomplete. ”

"Just a small part?" Lena seemed to sniff out the meaning of Ducat's words.

"That's right, just a small part." "And Mailer learned this small part from it, so Mailer's construction technology was not complete from the beginning, that is, the construction technology of 'jellyfish' was congenitally deficient from the beginning," Ducatt said. ”

"So there's this flaw?" Lena asked, "What kind of flaws and weaknesses are they?" ”

Duka marked the dot pattern in the very center of the pattern, where a circle was drawn with a red pen.

"This is it." He said.

"Didn't you just say there are no loopholes here?" Lena said.

"That's right, usually there is." "The jellyfish base is so large that when it comes to the surface, it's the size of a ten-square-kilometre island, but it's flat, like a big round discus," Ducate said. However, as it rises and sinks, it is not oblate. ”

Ducate took out another disc from his leather bag, "This is how I simulated the movement of a jellyfish base when it floats and dives. ”

He inserted the disc into his laptop and swirled his fingers on the touchpad to bring up a simulated 3D animated video.

In the 3D animation, the whole process of the "jellyfish" base is vividly shown to float and dive.

After looking at it for a while, Lena's eyes became rounder and brighter. She found that the "jellyfish" base float was a little different from what she imagined, and it was also different from the ordinary submarine floating.

Submarine afloat is usually the first to emerge from the water, a bit like a dolphin passing out of the sea, and then to the whole ship.

In Lena's imagination, such a round and flattened piece of iron floated up, maybe the whole thing floated flat to the surface, after all, the area is large, and it is impossible to come out first like a submarine.

However, in the video, she saw a surprising scene.

When the "jellyfish" base began to dive, the middle was concave first, as if a whirlpool suddenly appeared in the middle, and then the whole large round cake began to gradually turn into a pointed cone!

She hurried closer to the screen and discovered that the entire "jellyfish" base was actually made up of small blocks of modular building parts, so they could be temporarily combined into different shapes.

This reminded her of the Alchemy Guild's Durin Prison, which was also like a Rubik's cube, which could be combined, dismantled, and transformed into different shapes.

"This technique ......" she stared at the image in the animation, at this time, the base was floating upward, and the opposite was true, this time the middle was raised first, forming an upward cone, and then like a mountain rising from the bottom of the sea, it was exposed to the surface.

"That's right, you should have seen this model before, it is our Durin Prison, and it also adopts this modular combination, which can be combined into different shapes according to different situations." Ducater said: "When you dive, you can change to a downward cone, which can speed up the dive and reduce drag, and the same is true when you go up, you can change to an upward cone, which reduces the pressure of floating, and it can also reduce the movement of the water surface caused by the whole plane when it floats, so as not to attract the attention of the spy satellites in the sky." ”

"That's smart!" Lena had to admire the design, "Master Mailer is really a genius. ”

"Of course, there is no doubt about that." Ducat's words changed, "However, geniuses also have problems that cannot be solved. When diving and ascending, due to the change in the shape of the entire base, there will be some loopholes in the scanning range, but the loopholes are very small, only a range of about 100 meters in diameter, which is the blind spot of energy scanning. ”

Lena bit her lip: "I see, that's why let's do an extreme airborne landing at an altitude of 40,000 meters, right?" ”

"That's right, only vertically from above a fixed direction landing, and then the landing point must be in the jellyfish base in the middle of the 100-meter diameter blind spot, this is an extreme high-altitude conditions of fixed-point parachuting, very difficult, it can be said, not no one has jumped at an altitude of more than 30,000 meters before, as early as in 1960, a retired U.S. Army colonel Kittingel set a 31.3-kilometer altitude skydiving record, but he is not a fixed-point parachute."

Lena was really empty in her heart, although Gege and the sailors, falcons and other members of the Tianmu company were the elite of the elite, and they had also learned to skydive, but the highest was only to jump on the stratosphere of 10,000 or 20,000 meters, and had never tried to jump down at an altitude of 40,000 meters.

You know, there is already the "edge of the sky", there is no troposphere air convection at all, it belongs to a semi-stationary space close to space, where objects will come down at a very fast speed, it is easy to exceed the speed of sound, and at a speed of more than Mach 1, the control point is still within a diameter of 100 meters!

Oh! God! What the hell is this cosmic joke!

Lena thought to herself.