"Delin," Shanhu took two steps after gently wiping away tears from the corners of her eyes with her middle finger, "I'd better go up with you." With that, she turned back to Antina and said, "Just sit next to Aunt Hughes, don't go away, Mommy will be right back." ”

"Hmm," Antina stopped talking to Hughes, turned her head and nodded with wide eyes, and immediately spoke to Hughes.

When Shanhu chased her out, she found Delin standing at the top of the stairs waiting for her, and she didn't mean to take the elevator. When Delin took Shanhu's hand, he suddenly said, "Forget it, let's take the elevator." ”

Shanhu followed Delin into the elevator without any opinion. Delin's hand was still firmly gripping Shanhu's hand, his thumb still caressing it gently.

"What's wrong with you?" Shanhu cut to the chase, "When you come back from the monitoring room, you won't be able to give up." The voice was still so calm, but the feeling of worry came naturally.

"Are you real?" As soon as Delin finished asking, he suddenly remembered something, and touched the pocket of his shirt with his left hand, and before his hand reached the pocket, Shanhu added: "It's there." ”

Delin's nervousness suddenly eased a lot, "It's okay, maybe the intensity of the operation in the afternoon was too strong, and it's much better now." ”

"Afternoon? , isn't it ......" Shanhu half-lowered her head and thought to herself, but she didn't dare to say this question.

"Really, it's okay, don't worry." Delin said, taking Shanhu's right hand and clenching it twice.

"It's okay, let's go to bed early in a while," Shanhu looked at the ceiling of the elevator, "Actually, it's not early, I have to go to Shanghai tomorrow morning." ”

Back in the room, grab the coat, and the two go back to the dining room. Everything seems so bland. Antina was already discussing the feelings of the music in the tone of the imitator, and Delin and Sancho also chatted, and Sancho tried to express his hope that Shanhu could record it, and Delin was of course very proud. But after all, they all had to get up early the next morning, so after dessert, they went back to their rooms.

After Delin and Shanhu settled Andina, they both lay quietly on the bed, and there were no extra words, but they both opened their eyes and looked at the ceiling, each pillowed their arms, and the other held it tightly, and held it like that, for a long, long time......

At 6:50 the next morning, the six men were ready to go. In addition to the Delin family and Hughes and Sancho, there was also Luo Cheng, the designer and pilot of the aircraft.

"Last night, Mr. Sancho told me about today's mission. I was afraid that something would go wrong, so I applied to the ATC committee overnight for today's flight. So, as soon as seven o'clock arrives, we can take off on time. Luo Cheng said, the time is up, so he started the plane's self-inspection procedure as he spoke, and when the time came, the plane started.

The take-off was very smooth, there was no elevation angle, and there was no discomfort from acceleration. But in less than five minutes, Luo Cheng came from the cockpit to the cabin.

Hughes was surprised, "What happened to the plane?" She thought the plane had stopped, which was delaying her big event, "I didn't sleep well last night!" She couldn't bear it anymore and raised her voice.

"That's good." Luo Cheng looked relaxed, "Now it's in the first level of cruising." The cruising altitude is 28,000 kilometers. With that, he put his hands in his trouser pockets and sat down in the seat next to Hughes. Sancho looked proud, looked around at the Delin family in the opposite seat, Antina leaned on Shanhu's arms, closed her eyes, Shanhu leaned on Delin's shoulder, her eyes just fell on the hand held with Delin, Delin did not pay attention to Sancho opposite, but looked straight ahead, yes, just ahead, the focus of her gaze may have been on the door of Stephen Lee's head. On the contrary, Hughes, who was sitting on the side, tilted his head sideways, looked at Luo Cheng incredulously, his mouth was slightly open, and even his jaw was detached, "You're not kidding, are you?" ”

"Of course not, do you know the jump?"

"Jump?" Hughes looked dazed.

"Jump!" Delin's gaze was suddenly pulled back and fell on Luo Cheng's face, as if he was smiling, his eyebrows fluttering.

Sancho's smug expression became more and more presumptuous because of Delin's words, but all he had was presumptuous in his expression, and the only one who could continue to describe why was Luo Cheng. "As long as you can get energy, you can jump." This sentence of Luo Cheng is just a nonsense in Delin's opinion, because on a small scale, electrons gain energy and can jump, and it is normal to jump from the low orbit of the atom to the high orbit, but at the macro scale, it is not impossible to obtain energy transition, but the probability is low to almost none.

Luo Cheng was a little anxious when he saw Delin hanging his eyebrows and frowning, and his curious and disdainful expression was a little anxious, and he quickly explained: "I used the exchange of mesons to gain kinetic energy. ”

When Delin heard this explanation, his eyebrows immediately stretched, and it is true that the meson, as an unstable elementary particle, is exchanged between leptons and heavy words, and a force is generated, like a magnet, although it can be understood as the mutual repulsion between homogeneous charges and the attraction of opposite-sex charges, but how this repulsive force and the attraction force are generated, at the level of quantum mechanics, are generated because of the different directions of the exchange of mesons. In principle, it is the same as the impetus generated by the directional flame spraying of a rocket.

"I'm just getting the thrust of this plane by adjusting the direction of the ever-present meson exchange between lepton and baryon, which is very simple in theory. You should be able to understand. After Luo Chenggang explained, Delin continued: "Vector technology, um~, no wonder." "The so-called wonder refers to the sound of the engine, because all the thrust is generated at the level of mesons and quarks, so there is no vibration of the air at all, that is, if you exclude the noise caused by the friction between the airplane body and the air, there will be no superfluous sound.

Hughes was confused, but her concern was not in principle and technology, and it was clear that she was most concerned about whether she could see Stephen Lee soon, "So, I'll be in Shanghai in another 40 minutes, right?" ”

Luo Cheng turned his head sideways, looked at Hughes, and nodded to her with a confident and smug expression. And did not speak again, because in the next minute, all the sounds would be left behind before they could be transmitted into the cabin, because in this minute, the plane would go from subsonic, breaking through the sound barrier, to five times the speed of sound. In the process, the overclocking laser activation system is also activated.

"Well, the next 35 minutes will be a magical experience." Delin spoke suddenly, five minutes apart, and everyone in the room could hear him. This time, however, only Delin was surprised, because the others had no idea what he had just felt and what he actually felt, and the magic behind the sounds he could hear now.

Of course, Luo Cheng understood the reason for Delin's surprise, he stood up, took his hands out of his pockets, and opened them slightly beside him: "In the five minutes just now, we slowly caught up with this plane. Of course, the same is true for the previous jump. Isn't there anything wrong with you? There was only silence in the seat, Luo Chengye didn't care so much, and then continued, "When I designed, in order to be able to keep passengers from being squeezed by themselves during acceleration, I just compressed time and space. Let the plane itself accelerate first, break the sound barrier, and we humans will catch up with the plane with a small uniform acceleration motion in the time and space in between. As for the sound, this is it. He said and pointed to the pale green dots of light at the top of the plane's cabin, which tracked the ears of every passenger.

Delin stood up and patted Luo Cheng's shoulder heavily, "Young man, it's very good." "There was a smile on his face, the only sincere smile from yesterday afternoon to today.

"This set of materials ......" Delin and Luo Cheng chatted, from the principle to the material to the design, every detail can expand countless topics. Shanhu saw Delin's smile again, this was her favorite Delin's expression, neither ostentatious nor indifferent, but also a little relatable.

It's a pity that the time is too short, and soon, Luo Cheng returned to the cockpit and prepared for the plane to land, and Delin returned to his serious expression.

The landing was very smooth, and it was on the roof of Lujiazui Central Hospital. The first person to rush off the plane and rush to the hospital bed was Hughes. Delin followed as well. Originally, Sancho wanted to follow Hughes, because he was worried about the moth, or he also wanted to meet the famous Stephen Lee, but when he thought of Hughes's temper, he still couldn't help but not get off the plane. Now everyone else on the plane is still there except for Hughes and Delin. Sancho thought that it was Delin who would accompany him, and couldn't help but smile wryly and shook his head. But seeing that Anyana was sleeping soundly in Shanhu's arms, she didn't talk much. Luo Cheng also called up the IVBI system, and seemed to be designing some strange flying machine with a wry smile, for him, the current design task is much heavier than the original, especially after the IVBI system is integrated into the Triple H system.

"How's he doing?" In the hospital room, Hughes asked the nurse breathlessly in the hospital room.

"We'll remove the gauze for him right away, maybe in another ten minutes, and you'll be able to talk to him," said the playful nurse as she pushed Stephen Lee out of the room, Hughes bowing his head. In the aisle, I happened to bump into Delin.

"Dr. Delin?" The nurse was very curious when she saw Delin, "Are you doing a ward round for Mr. Li?" ”

"Ah, no, but he's supposed to be in the sterile room now, right?" Delin asked with concern.

"Well, let's go first." The nurse responded.

"Delin?" A faint voice came from inside the gauze.

Before Delin could speak, Hughes heard the faint voice, ran out of the ward at once, threw himself on the side of the bed, his lips trembled, and asked eagerly, "Are you awake?" ”